Get Phoenix server up and running with Nostr Ecto context

.formatter.exs

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+[
+  import_deps: [:ecto, :ecto_sql, :phoenix],
+  subdirectories: ["priv/*/migrations"],
+  plugins: [Phoenix.LiveView.HTMLFormatter],
+  inputs: ["*.{heex,ex,exs}", "{config,lib,test}/**/*.{heex,ex,exs}", "priv/*/seeds.exs"]
+]

.gitignore

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+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where 3rd-party dependencies like ExDoc output generated docs.
+/doc/
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+/.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Temporary files, for example, from tests.
+/tmp/
+
+# Ignore package tarball (built via "mix hex.build").
+gc_index_relay-*.tar
+
+# Language servers
+.elixir_ls/
+.expert/

AGENTS.md

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+This is a web application written using the Phoenix web framework.
+
+## Project guidelines
+
+- Use `mix precommit` alias when you are done with all changes and fix any pending issues
+- Use the already included and available `:req` (`Req`) library for HTTP requests, **avoid** `:httpoison`, `:tesla`, and `:httpc`. Req is included by default and is the preferred HTTP client for Phoenix apps
+
+### Phoenix v1.8 guidelines
+
+- **Always** begin your LiveView templates with `<Layouts.app flash={@flash} ...>` which wraps all inner content
+- The `MyAppWeb.Layouts` module is aliased in the `my_app_web.ex` file, so you can use it without needing to alias it again
+- Anytime you run into errors with no `current_scope` assign:
+  - You failed to follow the Authenticated Routes guidelines, or you failed to pass `current_scope` to `<Layouts.app>`
+  - **Always** fix the `current_scope` error by moving your routes to the proper `live_session` and ensure you pass `current_scope` as needed
+- Phoenix v1.8 moved the `<.flash_group>` component to the `Layouts` module. You are **forbidden** from calling `<.flash_group>` outside of the `layouts.ex` module
+- Out of the box, `core_components.ex` imports an `<.icon name="hero-x-mark" class="w-5 h-5"/>` component for for hero icons. **Always** use the `<.icon>` component for icons, **never** use `Heroicons` modules or similar
+- **Always** use the imported `<.input>` component for form inputs from `core_components.ex` when available. `<.input>` is imported and using it will save steps and prevent errors
+- If you override the default input classes (`<.input class="myclass px-2 py-1 rounded-lg">)`) class with your own values, no default classes are inherited, so your
+custom classes must fully style the input
+
+
+<!-- usage-rules-start -->
+
+<!-- phoenix:elixir-start -->
+## Elixir guidelines
+
+- Elixir lists **do not support index based access via the access syntax**
+
+  **Never do this (invalid)**:
+
+      i = 0
+      mylist = ["blue", "green"]
+      mylist[i]
+
+  Instead, **always** use `Enum.at`, pattern matching, or `List` for index based list access, ie:
+
+      i = 0
+      mylist = ["blue", "green"]
+      Enum.at(mylist, i)
+
+- Elixir variables are immutable, but can be rebound, so for block expressions like `if`, `case`, `cond`, etc
+  you *must* bind the result of the expression to a variable if you want to use it and you CANNOT rebind the result inside the expression, ie:
+
+      # INVALID: we are rebinding inside the `if` and the result never gets assigned
+      if connected?(socket) do
+        socket = assign(socket, :val, val)
+      end
+
+      # VALID: we rebind the result of the `if` to a new variable
+      socket =
+        if connected?(socket) do
+          assign(socket, :val, val)
+        end
+
+- **Never** nest multiple modules in the same file as it can cause cyclic dependencies and compilation errors
+- **Never** use map access syntax (`changeset[:field]`) on structs as they do not implement the Access behaviour by default. For regular structs, you **must** access the fields directly, such as `my_struct.field` or use higher level APIs that are available on the struct if they exist, `Ecto.Changeset.get_field/2` for changesets
+- Elixir's standard library has everything necessary for date and time manipulation. Familiarize yourself with the common `Time`, `Date`, `DateTime`, and `Calendar` interfaces by accessing their documentation as necessary. **Never** install additional dependencies unless asked or for date/time parsing (which you can use the `date_time_parser` package)
+- Don't use `String.to_atom/1` on user input (memory leak risk)
+- Predicate function names should not start with `is_` and should end in a question mark. Names like `is_thing` should be reserved for guards
+- Elixir's builtin OTP primitives like `DynamicSupervisor` and `Registry`, require names in the child spec, such as `{DynamicSupervisor, name: MyApp.MyDynamicSup}`, then you can use `DynamicSupervisor.start_child(MyApp.MyDynamicSup, child_spec)`
+- Use `Task.async_stream(collection, callback, options)` for concurrent enumeration with back-pressure. The majority of times you will want to pass `timeout: :infinity` as option
+
+## Mix guidelines
+
+- Read the docs and options before using tasks (by using `mix help task_name`)
+- To debug test failures, run tests in a specific file with `mix test test/my_test.exs` or run all previously failed tests with `mix test --failed`
+- `mix deps.clean --all` is **almost never needed**. **Avoid** using it unless you have good reason
+
+## Test guidelines
+
+- **Always use `start_supervised!/1`** to start processes in tests as it guarantees cleanup between tests
+- **Avoid** `Process.sleep/1` and `Process.alive?/1` in tests
+  - Instead of sleeping to wait for a process to finish, **always** use `Process.monitor/1` and assert on the DOWN message:
+
+      ref = Process.monitor(pid)
+      assert_receive {:DOWN, ^ref, :process, ^pid, :normal}
+
+   - Instead of sleeping to synchronize before the next call, **always** use `_ = :sys.get_state/1` to ensure the process has handled prior messages
+<!-- phoenix:elixir-end -->
+
+<!-- phoenix:phoenix-start -->
+## Phoenix guidelines
+
+- Remember Phoenix router `scope` blocks include an optional alias which is prefixed for all routes within the scope. **Always** be mindful of this when creating routes within a scope to avoid duplicate module prefixes.
+
+- You **never** need to create your own `alias` for route definitions! The `scope` provides the alias, ie:
+
+      scope "/admin", AppWeb.Admin do
+        pipe_through :browser
+
+        live "/users", UserLive, :index
+      end
+
+  the UserLive route would point to the `AppWeb.Admin.UserLive` module
+
+- `Phoenix.View` no longer is needed or included with Phoenix, don't use it
+<!-- phoenix:phoenix-end -->
+
+<!-- phoenix:ecto-start -->
+## Ecto Guidelines
+
+- **Always** preload Ecto associations in queries when they'll be accessed in templates, ie a message that needs to reference the `message.user.email`
+- Remember `import Ecto.Query` and other supporting modules when you write `seeds.exs`
+- `Ecto.Schema` fields always use the `:string` type, even for `:text`, columns, ie: `field :name, :string`
+- `Ecto.Changeset.validate_number/2` **DOES NOT SUPPORT the `:allow_nil` option**. By default, Ecto validations only run if a change for the given field exists and the change value is not nil, so such as option is never needed
+- You **must** use `Ecto.Changeset.get_field(changeset, :field)` to access changeset fields
+- Fields which are set programatically, such as `user_id`, must not be listed in `cast` calls or similar for security purposes. Instead they must be explicitly set when creating the struct
+- **Always** invoke `mix ecto.gen.migration migration_name_using_underscores` when generating migration files, so the correct timestamp and conventions are applied
+<!-- phoenix:ecto-end -->
+
+<!-- phoenix:html-start -->
+## Phoenix HTML guidelines
+
+- Phoenix templates **always** use `~H` or .html.heex files (known as HEEx), **never** use `~E`
+- **Always** use the imported `Phoenix.Component.form/1` and `Phoenix.Component.inputs_for/1` function to build forms. **Never** use `Phoenix.HTML.form_for` or `Phoenix.HTML.inputs_for` as they are outdated
+- When building forms **always** use the already imported `Phoenix.Component.to_form/2` (`assign(socket, form: to_form(...))` and `<.form for={@form} id="msg-form">`), then access those forms in the template via `@form[:field]`
+- **Always** add unique DOM IDs to key elements (like forms, buttons, etc) when writing templates, these IDs can later be used in tests (`<.form for={@form} id="product-form">`)
+- For "app wide" template imports, you can import/alias into the `my_app_web.ex`'s `html_helpers` block, so they will be available to all LiveViews, LiveComponent's, and all modules that do `use MyAppWeb, :html` (replace "my_app" by the actual app name)
+
+- Elixir supports `if/else` but **does NOT support `if/else if` or `if/elsif`**. **Never use `else if` or `elseif` in Elixir**, **always** use `cond` or `case` for multiple conditionals.
+
+  **Never do this (invalid)**:
+
+      <%= if condition do %>
+        ...
+      <% else if other_condition %>
+        ...
+      <% end %>
+
+  Instead **always** do this:
+
+      <%= cond do %>
+        <% condition -> %>
+          ...
+        <% condition2 -> %>
+          ...
+        <% true -> %>
+          ...
+      <% end %>
+
+- HEEx require special tag annotation if you want to insert literal curly's like `{` or `}`. If you want to show a textual code snippet on the page in a `<pre>` or `<code>` block you *must* annotate the parent tag with `phx-no-curly-interpolation`:
+
+      <code phx-no-curly-interpolation>
+        let obj = {key: "val"}
+      </code>
+
+  Within `phx-no-curly-interpolation` annotated tags, you can use `{` and `}` without escaping them, and dynamic Elixir expressions can still be used with `<%= ... %>` syntax
+
+- HEEx class attrs support lists, but you must **always** use list `[...]` syntax. You can use the class list syntax to conditionally add classes, **always do this for multiple class values**:
+
+      <a class={[
+        "px-2 text-white",
+        @some_flag && "py-5",
+        if(@other_condition, do: "border-red-500", else: "border-blue-100"),
+        ...
+      ]}>Text</a>
+
+  and **always** wrap `if`'s inside `{...}` expressions with parens, like done above (`if(@other_condition, do: "...", else: "...")`)
+
+  and **never** do this, since it's invalid (note the missing `[` and `]`):
+
+      <a class={
+        "px-2 text-white",
+        @some_flag && "py-5"
+      }> ...
+      => Raises compile syntax error on invalid HEEx attr syntax
+
+- **Never** use `<% Enum.each %>` or non-for comprehensions for generating template content, instead **always** use `<%= for item <- @collection do %>`
+- HEEx HTML comments use `<%!-- comment --%>`. **Always** use the HEEx HTML comment syntax for template comments (`<%!-- comment --%>`)
+- HEEx allows interpolation via `{...}` and `<%= ... %>`, but the `<%= %>` **only** works within tag bodies. **Always** use the `{...}` syntax for interpolation within tag attributes, and for interpolation of values within tag bodies. **Always** interpolate block constructs (if, cond, case, for) within tag bodies using `<%= ... %>`.
+
+  **Always** do this:
+
+      <div id={@id}>
+        {@my_assign}
+        <%= if @some_block_condition do %>
+          {@another_assign}
+        <% end %>
+      </div>
+
+  and **Never** do this – the program will terminate with a syntax error:
+
+      <%!-- THIS IS INVALID NEVER EVER DO THIS --%>
+      <div id="<%= @invalid_interpolation %>">
+        {if @invalid_block_construct do}
+        {end}
+      </div>
+<!-- phoenix:html-end -->
+
+<!-- usage-rules-end -->

config/config.exs

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+# This file is responsible for configuring your application
+# and its dependencies with the aid of the Config module.
+#
+# This configuration file is loaded before any dependency and
+# is restricted to this project.
+
+# General application configuration
+import Config
+
+config :gc_index_relay,
+  ecto_repos: [GcIndexRelay.Repo],
+  generators: [timestamp_type: :utc_datetime]
+
+# Configure the endpoint
+config :gc_index_relay, GcIndexRelayWeb.Endpoint,
+  url: [host: "localhost"],
+  adapter: Bandit.PhoenixAdapter,
+  render_errors: [
+    formats: [html: GcIndexRelayWeb.ErrorHTML, json: GcIndexRelayWeb.ErrorJSON],
+    layout: false
+  ],
+  pubsub_server: GcIndexRelay.PubSub,
+  live_view: [signing_salt: "CiEK2Shl"]
+
+# Configure the mailer
+#
+# By default it uses the "Local" adapter which stores the emails
+# locally. You can see the emails in your browser, at "/dev/mailbox".
+#
+# For production it's recommended to configure a different adapter
+# at the `config/runtime.exs`.
+config :gc_index_relay, GcIndexRelay.Mailer, adapter: Swoosh.Adapters.Local
+
+# Configure Elixir's Logger
+config :logger, :default_formatter,
+  format: "$time $metadata[$level] $message\n",
+  metadata: [:request_id]
+
+# Use Jason for JSON parsing in Phoenix
+config :phoenix, :json_library, Jason
+
+# Import environment specific config. This must remain at the bottom
+# of this file so it overrides the configuration defined above.
+import_config "#{config_env()}.exs"

config/dev.exs

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+import Config
+
+# Configure your database
+config :gc_index_relay, GcIndexRelay.Repo,
+  port: 5455,
+  username: "postgres",
+  password: "postgres",
+  hostname: "localhost",
+  database: "gc_index_relay_dev",
+  stacktrace: true,
+  show_sensitive_data_on_connection_error: true,
+  pool_size: 10
+
+# For development, we disable any cache and enable
+# debugging and code reloading.
+#
+# The watchers configuration can be used to run external
+# watchers to your application. For example, we can use it
+# to bundle .js and .css sources.
+config :gc_index_relay, GcIndexRelayWeb.Endpoint,
+  # Binding to loopback ipv4 address prevents access from other machines.
+  # Change to `ip: {0, 0, 0, 0}` to allow access from other machines.
+  http: [ip: {127, 0, 0, 1}],
+  check_origin: false,
+  code_reloader: true,
+  debug_errors: true,
+  secret_key_base: "HVVv9F/JxNDvzGsdBrBVJDjNMfN6SECwb5O5GOIb8nWijxntDNFiUYRTJjh0w+M7",
+  watchers: []
+
+# ## SSL Support
+#
+# In order to use HTTPS in development, a self-signed
+# certificate can be generated by running the following
+# Mix task:
+#
+#     mix phx.gen.cert
+#
+# Run `mix help phx.gen.cert` for more information.
+#
+# The `http:` config above can be replaced with:
+#
+#     https: [
+#       port: 4001,
+#       cipher_suite: :strong,
+#       keyfile: "priv/cert/selfsigned_key.pem",
+#       certfile: "priv/cert/selfsigned.pem"
+#     ],
+#
+# If desired, both `http:` and `https:` keys can be
+# configured to run both http and https servers on
+# different ports.
+
+# Reload browser tabs when matching files change.
+config :gc_index_relay, GcIndexRelayWeb.Endpoint,
+  live_reload: [
+    web_console_logger: true,
+    patterns: [
+      # Static assets, except user uploads
+      ~r"priv/static/(?!uploads/).*\.(js|css|png|jpeg|jpg|gif|svg)$",
+      # Gettext translations
+      ~r"priv/gettext/.*\.po$",
+      # Router, Controllers, LiveViews and LiveComponents
+      ~r"lib/gc_index_relay_web/router\.ex$",
+      ~r"lib/gc_index_relay_web/(controllers|live|components)/.*\.(ex|heex)$"
+    ]
+  ]
+
+# Enable dev routes for dashboard and mailbox
+config :gc_index_relay, dev_routes: true
+
+# Do not include metadata nor timestamps in development logs
+config :logger, :default_formatter, format: "[$level] $message\n"
+
+# Set a higher stacktrace during development. Avoid configuring such
+# in production as building large stacktraces may be expensive.
+config :phoenix, :stacktrace_depth, 20
+
+# Initialize plugs at runtime for faster development compilation
+config :phoenix, :plug_init_mode, :runtime
+
+config :phoenix_live_view,
+  # Include debug annotations and locations in rendered markup.
+  # Changing this configuration will require mix clean and a full recompile.
+  debug_heex_annotations: true,
+  debug_attributes: true,
+  # Enable helpful, but potentially expensive runtime checks
+  enable_expensive_runtime_checks: true
+
+# Disable swoosh api client as it is only required for production adapters.
+config :swoosh, :api_client, false

config/prod.exs

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+import Config
+
+# Force using SSL in production. This also sets the "strict-security-transport" header,
+# known as HSTS. If you have a health check endpoint, you may want to exclude it below.
+# Note `:force_ssl` is required to be set at compile-time.
+config :gc_index_relay, GcIndexRelayWeb.Endpoint,
+  force_ssl: [rewrite_on: [:x_forwarded_proto]],
+  exclude: [
+    # paths: ["/health"],
+    hosts: ["localhost", "127.0.0.1"]
+  ]
+
+# Configure Swoosh API Client
+config :swoosh, api_client: Swoosh.ApiClient.Req
+
+# Disable Swoosh Local Memory Storage
+config :swoosh, local: false
+
+# Do not print debug messages in production
+config :logger, level: :info
+
+# Runtime production configuration, including reading
+# of environment variables, is done on config/runtime.exs.

config/runtime.exs

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+import Config
+
+# config/runtime.exs is executed for all environments, including
+# during releases. It is executed after compilation and before the
+# system starts, so it is typically used to load production configuration
+# and secrets from environment variables or elsewhere. Do not define
+# any compile-time configuration in here, as it won't be applied.
+# The block below contains prod specific runtime configuration.
+
+# ## Using releases
+#
+# If you use `mix release`, you need to explicitly enable the server
+# by passing the PHX_SERVER=true when you start it:
+#
+#     PHX_SERVER=true bin/gc_index_relay start
+#
+# Alternatively, you can use `mix phx.gen.release` to generate a `bin/server`
+# script that automatically sets the env var above.
+if System.get_env("PHX_SERVER") do
+  config :gc_index_relay, GcIndexRelayWeb.Endpoint, server: true
+end
+
+config :gc_index_relay, GcIndexRelayWeb.Endpoint,
+  http: [port: String.to_integer(System.get_env("PORT", "4000"))]
+
+if config_env() == :prod do
+  database_url =
+    System.get_env("DATABASE_URL") ||
+      raise """
+      environment variable DATABASE_URL is missing.
+      For example: ecto://USER:PASS@HOST/DATABASE
+      """
+
+  maybe_ipv6 = if System.get_env("ECTO_IPV6") in ~w(true 1), do: [:inet6], else: []
+
+  config :gc_index_relay, GcIndexRelay.Repo,
+    # ssl: true,
+    url: database_url,
+    pool_size: String.to_integer(System.get_env("POOL_SIZE") || "10"),
+    # For machines with several cores, consider starting multiple pools of `pool_size`
+    # pool_count: 4,
+    socket_options: maybe_ipv6
+
+  # The secret key base is used to sign/encrypt cookies and other secrets.
+  # A default value is used in config/dev.exs and config/test.exs but you
+  # want to use a different value for prod and you most likely don't want
+  # to check this value into version control, so we use an environment
+  # variable instead.
+  secret_key_base =
+    System.get_env("SECRET_KEY_BASE") ||
+      raise """
+      environment variable SECRET_KEY_BASE is missing.
+      You can generate one by calling: mix phx.gen.secret
+      """
+
+  host = System.get_env("PHX_HOST") || "example.com"
+
+  config :gc_index_relay, :dns_cluster_query, System.get_env("DNS_CLUSTER_QUERY")
+
+  config :gc_index_relay, GcIndexRelayWeb.Endpoint,
+    url: [host: host, port: 443, scheme: "https"],
+    http: [
+      # Enable IPv6 and bind on all interfaces.
+      # Set it to  {0, 0, 0, 0, 0, 0, 0, 1} for local network only access.
+      # See the documentation on https://hexdocs.pm/bandit/Bandit.html#t:options/0
+      # for details about using IPv6 vs IPv4 and loopback vs public addresses.
+      ip: {0, 0, 0, 0, 0, 0, 0, 0}
+    ],
+    secret_key_base: secret_key_base
+
+  # ## SSL Support
+  #
+  # To get SSL working, you will need to add the `https` key
+  # to your endpoint configuration:
+  #
+  #     config :gc_index_relay, GcIndexRelayWeb.Endpoint,
+  #       https: [
+  #         ...,
+  #         port: 443,
+  #         cipher_suite: :strong,
+  #         keyfile: System.get_env("SOME_APP_SSL_KEY_PATH"),
+  #         certfile: System.get_env("SOME_APP_SSL_CERT_PATH")
+  #       ]
+  #
+  # The `cipher_suite` is set to `:strong` to support only the
+  # latest and more secure SSL ciphers. This means old browsers
+  # and clients may not be supported. You can set it to
+  # `:compatible` for wider support.
+  #
+  # `:keyfile` and `:certfile` expect an absolute path to the key
+  # and cert in disk or a relative path inside priv, for example
+  # "priv/ssl/server.key". For all supported SSL configuration
+  # options, see https://hexdocs.pm/plug/Plug.SSL.html#configure/1
+  #
+  # We also recommend setting `force_ssl` in your config/prod.exs,
+  # ensuring no data is ever sent via http, always redirecting to https:
+  #
+  #     config :gc_index_relay, GcIndexRelayWeb.Endpoint,
+  #       force_ssl: [hsts: true]
+  #
+  # Check `Plug.SSL` for all available options in `force_ssl`.
+
+  # ## Configuring the mailer
+  #
+  # In production you need to configure the mailer to use a different adapter.
+  # Here is an example configuration for Mailgun:
+  #
+  #     config :gc_index_relay, GcIndexRelay.Mailer,
+  #       adapter: Swoosh.Adapters.Mailgun,
+  #       api_key: System.get_env("MAILGUN_API_KEY"),
+  #       domain: System.get_env("MAILGUN_DOMAIN")
+  #
+  # Most non-SMTP adapters require an API client. Swoosh supports Req, Hackney,
+  # and Finch out-of-the-box. This configuration is typically done at
+  # compile-time in your config/prod.exs:
+  #
+  #     config :swoosh, :api_client, Swoosh.ApiClient.Req
+  #
+  # See https://hexdocs.pm/swoosh/Swoosh.html#module-installation for details.
+end

config/test.exs

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+import Config
+
+# Configure your database
+#
+# The MIX_TEST_PARTITION environment variable can be used
+# to provide built-in test partitioning in CI environment.
+# Run `mix help test` for more information.
+config :gc_index_relay, GcIndexRelay.Repo,
+  username: "postgres",
+  password: "postgres",
+  hostname: "localhost",
+  database: "gc_index_relay_test#{System.get_env("MIX_TEST_PARTITION")}",
+  pool: Ecto.Adapters.SQL.Sandbox,
+  pool_size: System.schedulers_online() * 2
+
+# We don't run a server during test. If one is required,
+# you can enable the server option below.
+config :gc_index_relay, GcIndexRelayWeb.Endpoint,
+  http: [ip: {127, 0, 0, 1}, port: 4002],
+  secret_key_base: "gSUz4Ek3rc6PKcY/imWwjsMbwk8g4+aS5HmD1/MyAmqlbSw+r0V83NjR7H0jnwI6",
+  server: false
+
+# In test we don't send emails
+config :gc_index_relay, GcIndexRelay.Mailer, adapter: Swoosh.Adapters.Test
+
+# Disable swoosh api client as it is only required for production adapters
+config :swoosh, :api_client, false
+
+# Print only warnings and errors during test
+config :logger, level: :warning
+
+# Initialize plugs at runtime for faster test compilation
+config :phoenix, :plug_init_mode, :runtime
+
+# Enable helpful, but potentially expensive runtime checks
+config :phoenix_live_view,
+  enable_expensive_runtime_checks: true
+
+# Sort query params output of verified routes for robust url comparisons
+config :phoenix,
+  sort_verified_routes_query_params: true

db/Dockerfile

@@ -0,0 +1,3 @@
+FROM apache/age:release_PG17_1.6.0
+
+EXPOSE 5432

lib/gc_index_relay.ex

@@ -0,0 +1,9 @@
+defmodule GcIndexRelay do
+  @moduledoc """
+  GcIndexRelay keeps the contexts that define your domain
+  and business logic.
+
+  Contexts are also responsible for managing your data, regardless
+  if it comes from the database, an external API or others.
+  """
+end

lib/gc_index_relay/application.ex

@@ -0,0 +1,34 @@
+defmodule GcIndexRelay.Application do
+  # See https://hexdocs.pm/elixir/Application.html
+  # for more information on OTP Applications
+  @moduledoc false
+
+  use Application
+
+  @impl true
+  def start(_type, _args) do
+    children = [
+      GcIndexRelayWeb.Telemetry,
+      GcIndexRelay.Repo,
+      {DNSCluster, query: Application.get_env(:gc_index_relay, :dns_cluster_query) || :ignore},
+      {Phoenix.PubSub, name: GcIndexRelay.PubSub},
+      # Start a worker by calling: GcIndexRelay.Worker.start_link(arg)
+      # {GcIndexRelay.Worker, arg},
+      # Start to serve requests, typically the last entry
+      GcIndexRelayWeb.Endpoint
+    ]
+
+    # See https://hexdocs.pm/elixir/Supervisor.html
+    # for other strategies and supported options
+    opts = [strategy: :one_for_one, name: GcIndexRelay.Supervisor]
+    Supervisor.start_link(children, opts)
+  end
+
+  # Tell Phoenix to update the endpoint configuration
+  # whenever the application is updated.
+  @impl true
+  def config_change(changed, _new, removed) do
+    GcIndexRelayWeb.Endpoint.config_change(changed, removed)
+    :ok
+  end
+end

lib/gc_index_relay/mailer.ex

@@ -0,0 +1,3 @@
+defmodule GcIndexRelay.Mailer do
+  use Swoosh.Mailer, otp_app: :gc_index_relay
+end

lib/gc_index_relay/nostr.ex

@@ -0,0 +1,50 @@
+defmodule GcIndexRelay.Nostr do
+  @moduledoc """
+  The Nostr context.
+
+  ## Supported Operations
+
+  The Nostr context module supports create, read, and delete operations on events, as well as a
+  number of query types to find collections of events. Update operations are not supported, sincafter
+  Nostr event, once signed, is immutable.
+  """
+
+  import Ecto.Query, warn: false
+  alias GcIndexRelay.Nostr.PubEvent
+  alias GcIndexRelay.Repo
+  alias GcIndexRelay.Nostr.Event
+
+  @doc """
+  Gets a single Nostr event from the database.
+
+  Returns: `GcIndexRelay.Nostr.PubEvent`
+  """
+  def get_event!(id) when is_binary(id) do
+    Event
+    |> Repo.get(id)
+    |> Repo.preload(:tags)
+    |> PubEvent.from_db()
+  end
+
+  @doc """
+  Writes a `GcIndexRelay.Nostr.PubEvent` to the database.
+  """
+  def create_event(event) when is_struct(event, PubEvent) do
+    db_event = PubEvent.to_db(event)
+
+    %Event{}
+    |> Event.changeset(Map.from_struct(db_event))
+    |> Repo.insert()
+  end
+
+  @doc """
+  Deletes a `GcIndexRelay.Nostr.PubEvent` from the database.
+  """
+  def delete_event(event) when is_struct(event, PubEvent) do
+    db_event = PubEvent.to_db(event)
+
+    %Event{}
+    |> Event.changeset(Map.from_struct(db_event))
+    |> Repo.delete()
+  end
+end

lib/gc_index_relay/nostr/event.ex

@@ -0,0 +1,44 @@
+defmodule GcIndexRelay.Nostr.Event do
+  @moduledoc """
+  The database representation of a Nostr event.
+
+  ## Associations
+
+  Events have a 1..N association with `GcIndexRelay.Nostr.Tag`. Tags are stored on a separate
+  table, but are always created and deleted in conjunction with their associated event.
+
+  ## Notes
+
+  Nostr's cryptographically-generated event IDs, since they are guaranteed to be unique, serve as
+  the Event table's primary key. Event IDs and signatures are validated by a separate module, as
+  the required cryptographic validations are not supported by Ecto.
+  """
+
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  alias GcIndexRelay.Nostr.Tag
+
+  @primary_key {:id, :binary_id, autogenerate: false}
+  schema "events" do
+    # 32-bytes lowercase hex-encoded
+    field :pubkey, :binary
+    field :created_at, :utc_datetime
+    field :kind, :integer
+    field :content, :string
+    # 64 bytes lowercase hex-encoded
+    field :sig, :binary
+    has_many :tags, GcIndexRelay.Nostr.Tag
+  end
+
+  @doc false
+  def changeset(event, attrs) do
+    event
+    |> cast(attrs, [:id, :pubkey, :created_at, :kind, :content, :sig])
+    |> cast_assoc(:tags, with: &Tag.changeset/2)
+    |> validate_required([:id, :pubkey, :created_at, :kind, :sig])
+    |> validate_number(:kind, greater_than_or_equal_to: 0)
+    |> validate_number(:kind, less_than: 40000)
+    |> unique_constraint(:id, name: :events_pkey)
+  end
+end

lib/gc_index_relay/nostr/pub_event.ex

@@ -0,0 +1,87 @@
+defmodule GcIndexRelay.Nostr.PubEvent do
+  @moduledoc """
+  The application domain model for a Nostr event.
+
+  Refer to `GcIndexRelay.Nostr.Event` for the in-database representation of a Nostr event, and
+  `GcIndexRelay.Nostr.Tag` for the in-database representation of a Nostr event tag.
+  """
+
+  alias GcIndexRelay.Nostr.Event
+  alias GcIndexRelay.Nostr.Tag
+
+  @derive Jason.Encoder
+  defstruct [:id, :pubkey, :created_at, :kind, :tags, :content, :sig]
+
+  @doc """
+  Converts a `GcIndexRelay.Nostr.PubEvent` to its corresponding `GcIndexRelay.Nostr.Event` and
+  `GcIndexRelay.Nostr.Tag` representations.
+
+  Returns an Ecto changeset for `GcIndexRelay.Nostr.Event`.
+  """
+  def to_db(%__MODULE__{tags: tags} = pub_event) do
+    %Event{to_event(pub_event) | tags: to_tags(tags)}
+  end
+
+  defp to_event(%__MODULE__{
+         id: id,
+         pubkey: pubkey,
+         created_at: epoch,
+         kind: kind,
+         content: content,
+         sig: signature
+       })
+       when is_binary(id) and is_binary(pubkey) and is_integer(epoch) and is_integer(kind) and
+              is_binary(signature) do
+    %Event{
+      id: Base.decode16(id, case: :lower),
+      pubkey: Base.decode16(pubkey, case: :lower),
+      created_at: DateTime.from_unix!(epoch),
+      kind: kind,
+      content: content,
+      sig: Base.decode16(signature, case: :lower)
+    }
+  end
+
+  defp to_tags(tags) when is_list(tags) do
+    for t <- tags, do: to_tag(t)
+  end
+
+  defp to_tag(tag) when is_list(tag) do
+    [name | values] = tag
+    [value | rest] = values
+
+    %Tag{
+      name: name,
+      value: value,
+      additional_values: rest
+    }
+  end
+
+  @doc """
+  Converts the DB representations of `GcIndexRelay.Nostr.Event` and `GcIndexRelay.Nostr.Tag` to the
+  domain representation `GcIndexRelay.Nostr.PubEvent`.
+  """
+  def from_db(%Event{tags: tags} = event) when is_struct(event, Event) and is_list(tags) do
+    %{from_event(event) | tags: from_tags(tags)}
+  end
+
+  defp from_event(%Event{} = event) when is_struct(event, Event) do
+    %__MODULE__{
+      id: Base.encode16(event.id, case: :lower),
+      pubkey: Base.encode16(event.pubkey, case: :lower),
+      created_at: DateTime.to_unix(event.created_at),
+      kind: event.kind,
+      content: event.content,
+      sig: Base.encode16(event.sig, case: :lower)
+    }
+  end
+
+  defp from_tags(tags) when is_list(tags) do
+    for t <- tags, do: from_tag(t)
+  end
+
+  defp from_tag(%Tag{name: name, value: value, additional_values: rest})
+       when is_binary(name) and is_binary(value) and is_list(rest) do
+    [name | [value | rest]]
+  end
+end

lib/gc_index_relay/nostr/tag.ex

@@ -0,0 +1,18 @@
+defmodule GcIndexRelay.Nostr.Tag do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  schema "tags" do
+    field :name, :string
+    field :value, :string
+    field :additional_values, {:array, :string}
+    belongs_to :event, GcIndexRelay.Nostr.Event
+  end
+
+  @doc false
+  def changeset(tag, attrs) do
+    tag
+    |> cast(attrs, [:name, :value, :additional_values])
+    |> validate_required([:name, :value])
+  end
+end

lib/gc_index_relay/repo.ex

@@ -0,0 +1,5 @@
+defmodule GcIndexRelay.Repo do
+  use Ecto.Repo,
+    otp_app: :gc_index_relay,
+    adapter: Ecto.Adapters.Postgres
+end

lib/gc_index_relay_web.ex

@@ -0,0 +1,114 @@
+defmodule GcIndexRelayWeb do
+  @moduledoc """
+  The entrypoint for defining your web interface, such
+  as controllers, components, channels, and so on.
+
+  This can be used in your application as:
+
+      use GcIndexRelayWeb, :controller
+      use GcIndexRelayWeb, :html
+
+  The definitions below will be executed for every controller,
+  component, etc, so keep them short and clean, focused
+  on imports, uses and aliases.
+
+  Do NOT define functions inside the quoted expressions
+  below. Instead, define additional modules and import
+  those modules here.
+  """
+
+  def static_paths, do: ~w(assets fonts images favicon.ico robots.txt)
+
+  def router do
+    quote do
+      use Phoenix.Router, helpers: false
+
+      # Import common connection and controller functions to use in pipelines
+      import Plug.Conn
+      import Phoenix.Controller
+      import Phoenix.LiveView.Router
+    end
+  end
+
+  def channel do
+    quote do
+      use Phoenix.Channel
+    end
+  end
+
+  def controller do
+    quote do
+      use Phoenix.Controller, formats: [:html, :json]
+
+      use Gettext, backend: GcIndexRelayWeb.Gettext
+
+      import Plug.Conn
+
+      unquote(verified_routes())
+    end
+  end
+
+  def live_view do
+    quote do
+      use Phoenix.LiveView
+
+      unquote(html_helpers())
+    end
+  end
+
+  def live_component do
+    quote do
+      use Phoenix.LiveComponent
+
+      unquote(html_helpers())
+    end
+  end
+
+  def html do
+    quote do
+      use Phoenix.Component
+
+      # Import convenience functions from controllers
+      import Phoenix.Controller,
+        only: [get_csrf_token: 0, view_module: 1, view_template: 1]
+
+      # Include general helpers for rendering HTML
+      unquote(html_helpers())
+    end
+  end
+
+  defp html_helpers do
+    quote do
+      # Translation
+      use Gettext, backend: GcIndexRelayWeb.Gettext
+
+      # HTML escaping functionality
+      import Phoenix.HTML
+      # Core UI components
+      import GcIndexRelayWeb.CoreComponents
+
+      # Common modules used in templates
+      alias Phoenix.LiveView.JS
+      alias GcIndexRelayWeb.Layouts
+
+      # Routes generation with the ~p sigil
+      unquote(verified_routes())
+    end
+  end
+
+  def verified_routes do
+    quote do
+      use Phoenix.VerifiedRoutes,
+        endpoint: GcIndexRelayWeb.Endpoint,
+        router: GcIndexRelayWeb.Router,
+        statics: GcIndexRelayWeb.static_paths()
+    end
+  end
+
+  @doc """
+  When used, dispatch to the appropriate controller/live_view/etc.
+  """
+  defmacro __using__(which) when is_atom(which) do
+    apply(__MODULE__, which, [])
+  end
+end

lib/gc_index_relay_web/components/core_components.ex

@@ -0,0 +1,473 @@
+defmodule GcIndexRelayWeb.CoreComponents do
+  @moduledoc """
+  Provides core UI components.
+
+  At first glance, this module may seem daunting, but its goal is to provide
+  core building blocks for your application, such as tables, forms, and
+  inputs. The components consist mostly of markup and are well-documented
+  with doc strings and declarative assigns. You may customize and style
+  them in any way you want, based on your application growth and needs.
+
+  The foundation for styling is Tailwind CSS, a utility-first CSS framework,
+  augmented with daisyUI, a Tailwind CSS plugin that provides UI components
+  and themes. Here are useful references:
+
+    * [daisyUI](https://daisyui.com/docs/intro/) - a good place to get
+      started and see the available components.
+
+    * [Tailwind CSS](https://tailwindcss.com) - the foundational framework
+      we build on. You will use it for layout, sizing, flexbox, grid, and
+      spacing.
+
+    * [Heroicons](https://heroicons.com) - see `icon/1` for usage.
+
+    * [Phoenix.Component](https://hexdocs.pm/phoenix_live_view/Phoenix.Component.html) -
+      the component system used by Phoenix. Some components, such as `<.link>`
+      and `<.form>`, are defined there.
+
+  """
+  use Phoenix.Component
+  use Gettext, backend: GcIndexRelayWeb.Gettext
+
+  @doc """
+  Renders flash notices.
+
+  ## Examples
+
+      <.flash kind={:info} flash={@flash} />
+      <.flash kind={:info} phx-mounted={show("#flash")}>Welcome Back!</.flash>
+  """
+  attr :id, :string, doc: "the optional id of flash container"
+  attr :flash, :map, default: %{}, doc: "the map of flash messages to display"
+  attr :title, :string, default: nil
+  attr :kind, :atom, values: [:info, :error], doc: "used for styling and flash lookup"
+  attr :rest, :global, doc: "the arbitrary HTML attributes to add to the flash container"
+
+  slot :inner_block, doc: "the optional inner block that renders the flash message"
+
+  def flash(assigns) do
+    assigns = assign_new(assigns, :id, fn -> "flash-#{assigns.kind}" end)
+
+    ~H"""
+    <div
+      :if={msg = render_slot(@inner_block) || Phoenix.Flash.get(@flash, @kind)}
+      id={@id}
+      data-flash
+      role="alert"
+      class="toast toast-top toast-end z-50"
+      {@rest}
+    >
+      <div class={[
+        "alert w-80 sm:w-96 max-w-80 sm:max-w-96 text-wrap",
+        @kind == :info && "alert-info",
+        @kind == :error && "alert-error"
+      ]}>
+        <.icon :if={@kind == :info} name="hero-information-circle" class="size-5 shrink-0" />
+        <.icon :if={@kind == :error} name="hero-exclamation-circle" class="size-5 shrink-0" />
+        <div>
+          <p :if={@title} class="font-semibold">{@title}</p>
+          <p>{msg}</p>
+        </div>
+        <div class="flex-1" />
+        <button type="button" class="group self-start cursor-pointer" aria-label={gettext("close")}>
+          <.icon name="hero-x-mark" class="size-5 opacity-40 group-hover:opacity-70" />
+        </button>
+      </div>
+    </div>
+    """
+  end
+
+  @doc """
+  Renders a button with navigation support.
+
+  ## Examples
+
+      <.button>Send!</.button>
+      <.button phx-click="go" variant="primary">Send!</.button>
+      <.button navigate={~p"/"}>Home</.button>
+  """
+  attr :rest, :global, include: ~w(href navigate patch method download name value disabled)
+  attr :class, :any
+  attr :variant, :string, values: ~w(primary)
+  slot :inner_block, required: true
+
+  def button(%{rest: rest} = assigns) do
+    variants = %{"primary" => "btn-primary", nil => "btn-primary btn-soft"}
+
+    assigns =
+      assign_new(assigns, :class, fn ->
+        ["btn", Map.fetch!(variants, assigns[:variant])]
+      end)
+
+    if rest[:href] || rest[:navigate] || rest[:patch] do
+      ~H"""
+      <.link class={@class} {@rest}>
+        {render_slot(@inner_block)}
+      </.link>
+      """
+    else
+      ~H"""
+      <button class={@class} {@rest}>
+        {render_slot(@inner_block)}
+      </button>
+      """
+    end
+  end
+
+  @doc """
+  Renders an input with label and error messages.
+
+  A `Phoenix.HTML.FormField` may be passed as argument,
+  which is used to retrieve the input name, id, and values.
+  Otherwise all attributes may be passed explicitly.
+
+  ## Types
+
+  This function accepts all HTML input types, considering that:
+
+    * You may also set `type="select"` to render a `<select>` tag
+
+    * `type="checkbox"` is used exclusively to render boolean values
+
+    * For live file uploads, see `Phoenix.Component.live_file_input/1`
+
+  See https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input
+  for more information. Unsupported types, such as radio, are best
+  written directly in your templates.
+
+  ## Examples
+
+  ```heex
+  <.input field={@form[:email]} type="email" />
+  <.input name="my-input" errors={["oh no!"]} />
+  ```
+
+  ## Select type
+
+  When using `type="select"`, you must pass the `options` and optionally
+  a `value` to mark which option should be preselected.
+
+  ```heex
+  <.input field={@form[:user_type]} type="select" options={["Admin": "admin", "User": "user"]} />
+  ```
+
+  For more information on what kind of data can be passed to `options` see
+  [`options_for_select`](https://hexdocs.pm/phoenix_html/Phoenix.HTML.Form.html#options_for_select/2).
+  """
+  attr :id, :any, default: nil
+  attr :name, :any
+  attr :label, :string, default: nil
+  attr :value, :any
+
+  attr :type, :string,
+    default: "text",
+    values: ~w(checkbox color date datetime-local email file month number password
+               search select tel text textarea time url week hidden)
+
+  attr :field, Phoenix.HTML.FormField,
+    doc: "a form field struct retrieved from the form, for example: @form[:email]"
+
+  attr :errors, :list, default: []
+  attr :checked, :boolean, doc: "the checked flag for checkbox inputs"
+  attr :prompt, :string, default: nil, doc: "the prompt for select inputs"
+  attr :options, :list, doc: "the options to pass to Phoenix.HTML.Form.options_for_select/2"
+  attr :multiple, :boolean, default: false, doc: "the multiple flag for select inputs"
+  attr :class, :any, default: nil, doc: "the input class to use over defaults"
+  attr :error_class, :any, default: nil, doc: "the input error class to use over defaults"
+
+  attr :rest, :global,
+    include: ~w(accept autocomplete capture cols disabled form list max maxlength min minlength
+                multiple pattern placeholder readonly required rows size step)
+
+  def input(%{field: %Phoenix.HTML.FormField{} = field} = assigns) do
+    errors = if Phoenix.Component.used_input?(field), do: field.errors, else: []
+
+    assigns
+    |> assign(field: nil, id: assigns.id || field.id)
+    |> assign(:errors, Enum.map(errors, &translate_error(&1)))
+    |> assign_new(:name, fn -> if assigns.multiple, do: field.name <> "[]", else: field.name end)
+    |> assign_new(:value, fn -> field.value end)
+    |> input()
+  end
+
+  def input(%{type: "hidden"} = assigns) do
+    ~H"""
+    <input type="hidden" id={@id} name={@name} value={@value} {@rest} />
+    """
+  end
+
+  def input(%{type: "checkbox"} = assigns) do
+    assigns =
+      assign_new(assigns, :checked, fn ->
+        Phoenix.HTML.Form.normalize_value("checkbox", assigns[:value])
+      end)
+
+    ~H"""
+    <div class="fieldset mb-2">
+      <label>
+        <input
+          type="hidden"
+          name={@name}
+          value="false"
+          disabled={@rest[:disabled]}
+          form={@rest[:form]}
+        />
+        <span class="label">
+          <input
+            type="checkbox"
+            id={@id}
+            name={@name}
+            value="true"
+            checked={@checked}
+            class={@class || "checkbox checkbox-sm"}
+            {@rest}
+          />{@label}
+        </span>
+      </label>
+      <.error :for={msg <- @errors}>{msg}</.error>
+    </div>
+    """
+  end
+
+  def input(%{type: "select"} = assigns) do
+    ~H"""
+    <div class="fieldset mb-2">
+      <label>
+        <span :if={@label} class="label mb-1">{@label}</span>
+        <select
+          id={@id}
+          name={@name}
+          class={[@class || "w-full select", @errors != [] && (@error_class || "select-error")]}
+          multiple={@multiple}
+          {@rest}
+        >
+          <option :if={@prompt} value="">{@prompt}</option>
+          {Phoenix.HTML.Form.options_for_select(@options, @value)}
+        </select>
+      </label>
+      <.error :for={msg <- @errors}>{msg}</.error>
+    </div>
+    """
+  end
+
+  def input(%{type: "textarea"} = assigns) do
+    ~H"""
+    <div class="fieldset mb-2">
+      <label>
+        <span :if={@label} class="label mb-1">{@label}</span>
+        <textarea
+          id={@id}
+          name={@name}
+          class={[
+            @class || "w-full textarea",
+            @errors != [] && (@error_class || "textarea-error")
+          ]}
+          {@rest}
+        >{Phoenix.HTML.Form.normalize_value("textarea", @value)}</textarea>
+      </label>
+      <.error :for={msg <- @errors}>{msg}</.error>
+    </div>
+    """
+  end
+
+  # All other inputs text, datetime-local, url, password, etc. are handled here...
+  def input(assigns) do
+    ~H"""
+    <div class="fieldset mb-2">
+      <label>
+        <span :if={@label} class="label mb-1">{@label}</span>
+        <input
+          type={@type}
+          name={@name}
+          id={@id}
+          value={Phoenix.HTML.Form.normalize_value(@type, @value)}
+          class={[
+            @class || "w-full input",
+            @errors != [] && (@error_class || "input-error")
+          ]}
+          {@rest}
+        />
+      </label>
+      <.error :for={msg <- @errors}>{msg}</.error>
+    </div>
+    """
+  end
+
+  # Helper used by inputs to generate form errors
+  defp error(assigns) do
+    ~H"""
+    <p class="mt-1.5 flex gap-2 items-center text-sm text-error">
+      <.icon name="hero-exclamation-circle" class="size-5" />
+      {render_slot(@inner_block)}
+    </p>
+    """
+  end
+
+  @doc """
+  Renders a header with title.
+  """
+  slot :inner_block, required: true
+  slot :subtitle
+  slot :actions
+
+  def header(assigns) do
+    ~H"""
+    <header class={[@actions != [] && "flex items-center justify-between gap-6", "pb-4"]}>
+      <div>
+        <h1 class="text-lg font-semibold leading-8">
+          {render_slot(@inner_block)}
+        </h1>
+        <p :if={@subtitle != []} class="text-sm text-base-content/70">
+          {render_slot(@subtitle)}
+        </p>
+      </div>
+      <div class="flex-none">{render_slot(@actions)}</div>
+    </header>
+    """
+  end
+
+  @doc """
+  Renders a table with generic styling.
+
+  ## Examples
+
+      <.table id="users" rows={@users}>
+        <:col :let={user} label="id">{user.id}</:col>
+        <:col :let={user} label="username">{user.username}</:col>
+      </.table>
+  """
+  attr :id, :string, required: true
+  attr :rows, :list, required: true
+  attr :row_id, :any, default: nil, doc: "the function for generating the row id"
+  attr :row_click, :any, default: nil, doc: "the function for handling phx-click on each row"
+
+  attr :row_item, :any,
+    default: &Function.identity/1,
+    doc: "the function for mapping each row before calling the :col and :action slots"
+
+  slot :col, required: true do
+    attr :label, :string
+  end
+
+  slot :action, doc: "the slot for showing user actions in the last table column"
+
+  def table(assigns) do
+    assigns =
+      with %{rows: %Phoenix.LiveView.LiveStream{}} <- assigns do
+        assign(assigns, row_id: assigns.row_id || fn {id, _item} -> id end)
+      end
+
+    ~H"""
+    <table class="table table-zebra">
+      <thead>
+        <tr>
+          <th :for={col <- @col}>{col[:label]}</th>
+          <th :if={@action != []}>
+            <span class="sr-only">{gettext("Actions")}</span>
+          </th>
+        </tr>
+      </thead>
+      <tbody id={@id} phx-update={is_struct(@rows, Phoenix.LiveView.LiveStream) && "stream"}>
+        <tr :for={row <- @rows} id={@row_id && @row_id.(row)}>
+          <td
+            :for={col <- @col}
+            phx-click={@row_click && @row_click.(row)}
+            class={@row_click && "hover:cursor-pointer"}
+          >
+            {render_slot(col, @row_item.(row))}
+          </td>
+          <td :if={@action != []} class="w-0 font-semibold">
+            <div class="flex gap-4">
+              <%= for action <- @action do %>
+                {render_slot(action, @row_item.(row))}
+              <% end %>
+            </div>
+          </td>
+        </tr>
+      </tbody>
+    </table>
+    """
+  end
+
+  @doc """
+  Renders a data list.
+
+  ## Examples
+
+      <.list>
+        <:item title="Title">{@post.title}</:item>
+        <:item title="Views">{@post.views}</:item>
+      </.list>
+  """
+  slot :item, required: true do
+    attr :title, :string, required: true
+  end
+
+  def list(assigns) do
+    ~H"""
+    <ul class="list">
+      <li :for={item <- @item} class="list-row">
+        <div class="list-col-grow">
+          <div class="font-bold">{item.title}</div>
+          <div>{render_slot(item)}</div>
+        </div>
+      </li>
+    </ul>
+    """
+  end
+
+  @doc """
+  Renders a [Heroicon](https://heroicons.com).
+
+  Heroicons come in three styles – outline, solid, and mini.
+  By default, the outline style is used, but solid and mini may
+  be applied by using the `-solid` and `-mini` suffix.
+
+  You can customize the size and colors of the icons by setting
+  width, height, and background color classes.
+
+  Icons are extracted from the `deps/heroicons` directory and bundled within
+  your compiled app.css by the plugin in `assets/vendor/heroicons.js`.
+
+  ## Examples
+
+      <.icon name="hero-x-mark" />
+      <.icon name="hero-arrow-path" class="ml-1 size-3 motion-safe:animate-spin" />
+  """
+  attr :name, :string, required: true
+  attr :class, :any, default: "size-4"
+
+  def icon(%{name: "hero-" <> _} = assigns) do
+    ~H"""
+    <span class={[@name, @class]} />
+    """
+  end
+
+  @doc """
+  Translates an error message using gettext.
+  """
+  def translate_error({msg, opts}) do
+    # When using gettext, we typically pass the strings we want
+    # to translate as a static argument:
+    #
+    #     # Translate the number of files with plural rules
+    #     dngettext("errors", "1 file", "%{count} files", count)
+    #
+    # However the error messages in our forms and APIs are generated
+    # dynamically, so we need to translate them by calling Gettext
+    # with our gettext backend as first argument. Translations are
+    # available in the errors.po file (as we use the "errors" domain).
+    if count = opts[:count] do
+      Gettext.dngettext(GcIndexRelayWeb.Gettext, "errors", msg, msg, count, opts)
+    else
+      Gettext.dgettext(GcIndexRelayWeb.Gettext, "errors", msg, opts)
+    end
+  end
+
+  @doc """
+  Translates the errors for a field from a keyword list of errors.
+  """
+  def translate_errors(errors, field) when is_list(errors) do
+    for {^field, {msg, opts}} <- errors, do: translate_error({msg, opts})
+  end
+end

lib/gc_index_relay_web/components/layouts.ex

@@ -0,0 +1,90 @@
+defmodule GcIndexRelayWeb.Layouts do
+  @moduledoc """
+  This module holds layouts and related functionality
+  used by your application.
+  """
+  use GcIndexRelayWeb, :html
+
+  # Embed all files in layouts/* within this module.
+  # The default root.html.heex file contains the HTML
+  # skeleton of your application, namely HTML headers
+  # and other static content.
+  embed_templates "layouts/*"
+
+  @doc """
+  Renders your app layout.
+
+  This function is typically invoked from every template,
+  and it often contains your application menu, sidebar,
+  or similar.
+
+  ## Examples
+
+      <Layouts.app flash={@flash}>
+        <h1>Content</h1>
+      </Layouts.app>
+
+  """
+  attr :flash, :map, required: true, doc: "the map of flash messages"
+
+  attr :current_scope, :map,
+    default: nil,
+    doc: "the current [scope](https://hexdocs.pm/phoenix/scopes.html)"
+
+  slot :inner_block, required: true
+
+  def app(assigns) do
+    ~H"""
+    <header class="navbar px-4 sm:px-6 lg:px-8">
+      <div class="flex-1">
+        <a href="/" class="flex-1 flex w-fit items-center gap-2">
+          <img src={~p"/images/logo.svg"} width="36" />
+          <span class="text-sm font-semibold">v{Application.spec(:phoenix, :vsn)}</span>
+        </a>
+      </div>
+      <div class="flex-none">
+        <ul class="flex flex-column px-1 space-x-4 items-center">
+          <li>
+            <a href="https://phoenixframework.org/" class="btn btn-ghost">Website</a>
+          </li>
+          <li>
+            <a href="https://github.com/phoenixframework/phoenix" class="btn btn-ghost">GitHub</a>
+          </li>
+          <li>
+            <a href="https://hexdocs.pm/phoenix/overview.html" class="btn btn-primary">
+              Get Started <span aria-hidden="true">&rarr;</span>
+            </a>
+          </li>
+        </ul>
+      </div>
+    </header>
+
+    <main class="px-4 py-20 sm:px-6 lg:px-8">
+      <div class="mx-auto max-w-2xl space-y-4">
+        {render_slot(@inner_block)}
+      </div>
+    </main>
+
+    <.flash_group flash={@flash} />
+    """
+  end
+
+  @doc """
+  Shows the flash group with standard titles and content.
+
+  ## Examples
+
+      <.flash_group flash={@flash} />
+  """
+  attr :flash, :map, required: true, doc: "the map of flash messages"
+  attr :id, :string, default: "flash-group", doc: "the optional id of flash container"
+
+  def flash_group(assigns) do
+    ~H"""
+    <div id={@id} aria-live="polite">
+      <.flash kind={:info} flash={@flash} />
+      <.flash kind={:error} flash={@flash} />
+    </div>
+    """
+  end
+end

lib/gc_index_relay_web/components/layouts/root.html.heex

@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="csrf-token" content={get_csrf_token()} />
+    <.live_title default="GcIndexRelay" suffix=" · Phoenix Framework">
+      {assigns[:page_title]}
+    </.live_title>
+    <link phx-track-static rel="stylesheet" href={~p"/assets/css/app.css"} />
+    <link phx-track-static rel="stylesheet" href={~p"/assets/default.css"} />
+    <script defer phx-track-static type="text/javascript" src={~p"/assets/js/app.js"}>
+    </script>
+  </head>
+  <body>
+    {@inner_content}
+  </body>
+</html>

lib/gc_index_relay_web/controllers/changeset_json.ex

@@ -0,0 +1,25 @@
+defmodule GcIndexRelayWeb.ChangesetJSON do
+  @doc """
+  Renders changeset errors.
+  """
+  def error(%{changeset: changeset}) do
+    # When encoded, the changeset returns its errors
+    # as a JSON object. So we just pass it forward.
+    %{errors: Ecto.Changeset.traverse_errors(changeset, &translate_error/1)}
+  end
+
+  defp translate_error({msg, opts}) do
+    # You can make use of gettext to translate error messages by
+    # uncommenting and adjusting the following code:
+
+    # if count = opts[:count] do
+    #   Gettext.dngettext(GcIndexRelayWeb.Gettext, "errors", msg, msg, count, opts)
+    # else
+    #   Gettext.dgettext(GcIndexRelayWeb.Gettext, "errors", msg, opts)
+    # end
+
+    Enum.reduce(opts, msg, fn {key, value}, acc ->
+      String.replace(acc, "%{#{key}}", fn _ -> to_string(value) end)
+    end)
+  end
+end

lib/gc_index_relay_web/controllers/error_html.ex

@@ -0,0 +1,24 @@
+defmodule GcIndexRelayWeb.ErrorHTML do
+  @moduledoc """
+  This module is invoked by your endpoint in case of errors on HTML requests.
+
+  See config/config.exs.
+  """
+  use GcIndexRelayWeb, :html
+
+  # If you want to customize your error pages,
+  # uncomment the embed_templates/1 call below
+  # and add pages to the error directory:
+  #
+  #   * lib/gc_index_relay_web/controllers/error_html/404.html.heex
+  #   * lib/gc_index_relay_web/controllers/error_html/500.html.heex
+  #
+  # embed_templates "error_html/*"
+
+  # The default is to render a plain text page based on
+  # the template name. For example, "404.html" becomes
+  # "Not Found".
+  def render(template, _assigns) do
+    Phoenix.Controller.status_message_from_template(template)
+  end
+end

lib/gc_index_relay_web/controllers/error_json.ex

@@ -0,0 +1,21 @@
+defmodule GcIndexRelayWeb.ErrorJSON do
+  @moduledoc """
+  This module is invoked by your endpoint in case of errors on JSON requests.
+
+  See config/config.exs.
+  """
+
+  # If you want to customize a particular status code,
+  # you may add your own clauses, such as:
+  #
+  # def render("500.json", _assigns) do
+  #   %{errors: %{detail: "Internal Server Error"}}
+  # end
+
+  # By default, Phoenix returns the status message from
+  # the template name. For example, "404.json" becomes
+  # "Not Found".
+  def render(template, _assigns) do
+    %{errors: %{detail: Phoenix.Controller.status_message_from_template(template)}}
+  end
+end

lib/gc_index_relay_web/controllers/event_controller.ex

@@ -0,0 +1,30 @@
+defmodule GcIndexRelayWeb.EventController do
+  use GcIndexRelayWeb, :controller
+
+  alias GcIndexRelay.Nostr
+  alias GcIndexRelay.Nostr.Event
+
+  action_fallback GcIndexRelayWeb.FallbackController
+
+  def create(conn, %{"event" => event_params}) do
+    with {:ok, %Event{} = event} <- Nostr.create_event(event_params) do
+      conn
+      |> put_status(:created)
+      |> put_resp_header("location", ~p"/api/events/#{event.id}")
+      |> render(:show, event: event)
+    end
+  end
+
+  def show(conn, %{"id" => id}) do
+    event = Nostr.get_event!(id)
+    render(conn, :show, event: event)
+  end
+
+  def delete(conn, %{"id" => id}) do
+    event = Nostr.get_event!(id)
+
+    with {:ok, %Event{}} <- Nostr.delete_event(event) do
+      send_resp(conn, :no_content, "")
+    end
+  end
+end

lib/gc_index_relay_web/controllers/event_html.ex

@@ -0,0 +1,5 @@
+defmodule GcIndexRelayWeb.EventHTML do
+  use GcIndexRelayWeb, :html
+
+  embed_templates "event_html/*"
+end

lib/gc_index_relay_web/controllers/event_html/new.html.heex

@@ -0,0 +1,6 @@
+<Layouts.app flash={@flash}>
+  <section>
+    <h2>New Event</h2>
+    <%!-- TODO: Display form for event details --%>
+  </section>
+</Layouts.app>

lib/gc_index_relay_web/controllers/event_json.ex

@@ -0,0 +1,22 @@
+defmodule GcIndexRelayWeb.EventJSON do
+  alias GcIndexRelay.Nostr.Event
+
+  @doc """
+  Renders a single event.
+  """
+  def show(%{event: event}) do
+    %{data: data(event)}
+  end
+
+  defp data(%Event{} = event) do
+    %{
+      id: event.id,
+      pubkey: event.pubkey,
+      created_at: event.created_at,
+      kind: event.kind,
+      content: event.content,
+      sig: event.sig,
+      tags: event.tags
+    }
+  end
+end

lib/gc_index_relay_web/controllers/fallback_controller.ex

@@ -0,0 +1,24 @@
+defmodule GcIndexRelayWeb.FallbackController do
+  @moduledoc """
+  Translates controller action results into valid `Plug.Conn` responses.
+
+  See `Phoenix.Controller.action_fallback/1` for more details.
+  """
+  use GcIndexRelayWeb, :controller
+
+  # This clause handles errors returned by Ecto's insert/update/delete.
+  def call(conn, {:error, %Ecto.Changeset{} = changeset}) do
+    conn
+    |> put_status(:unprocessable_entity)
+    |> put_view(json: GcIndexRelayWeb.ChangesetJSON)
+    |> render(:error, changeset: changeset)
+  end
+
+  # This clause is an example of how to handle resources that cannot be found.
+  def call(conn, {:error, :not_found}) do
+    conn
+    |> put_status(:not_found)
+    |> put_view(html: GcIndexRelayWeb.ErrorHTML, json: GcIndexRelayWeb.ErrorJSON)
+    |> render(:"404")
+  end
+end

lib/gc_index_relay_web/controllers/page_controller.ex

@@ -0,0 +1,7 @@
+defmodule GcIndexRelayWeb.PageController do
+  use GcIndexRelayWeb, :controller
+
+  def home(conn, _params) do
+    render(conn, :home)
+  end
+end

lib/gc_index_relay_web/controllers/page_html.ex

@@ -0,0 +1,10 @@
+defmodule GcIndexRelayWeb.PageHTML do
+  @moduledoc """
+  This module contains pages rendered by PageController.
+
+  See the `page_html` directory for all templates available.
+  """
+  use GcIndexRelayWeb, :html
+
+  embed_templates "page_html/*"
+end

lib/gc_index_relay_web/controllers/page_html/home.html.heex

@@ -0,0 +1,201 @@
+<Layouts.flash_group flash={@flash} />
+<div class="left-[40rem] fixed inset-y-0 right-0 z-0 hidden lg:block xl:left-[50rem]">
+  <svg
+    viewBox="0 0 1480 957"
+    fill="none"
+    aria-hidden="true"
+    class="absolute inset-0 h-full w-full"
+    preserveAspectRatio="xMinYMid slice"
+  >
+    <path fill="#EE7868" d="M0 0h1480v957H0z" />
+    <path
+      d="M137.542 466.27c-582.851-48.41-988.806-82.127-1608.412 658.2l67.39 810 3083.15-256.51L1535.94-49.622l-98.36 8.183C1269.29 281.468 734.115 515.799 146.47 467.012l-8.928-.742Z"
+      fill="#FF9F92"
+    />
+    <path
+      d="M371.028 528.664C-169.369 304.988-545.754 149.198-1361.45 665.565l-182.58 792.025 3014.73 694.98 389.42-1689.25-96.18-22.171C1505.28 697.438 924.153 757.586 379.305 532.09l-8.277-3.426Z"
+      fill="#FA8372"
+    />
+    <path
+      d="M359.326 571.714C-104.765 215.795-428.003-32.102-1349.55 255.554l-282.3 1224.596 3047.04 722.01 312.24-1354.467C1411.25 1028.3 834.355 935.995 366.435 577.166l-7.109-5.452Z"
+      fill="#E96856"
+      fill-opacity=".6"
+    />
+    <path
+      d="M1593.87 1236.88c-352.15 92.63-885.498-145.85-1244.602-613.557l-5.455-7.105C-12.347 152.31-260.41-170.8-1225-131.458l-368.63 1599.048 3057.19 704.76 130.31-935.47Z"
+      fill="#C42652"
+      fill-opacity=".2"
+    />
+    <path
+      d="M1411.91 1526.93c-363.79 15.71-834.312-330.6-1085.883-863.909l-3.822-8.102C72.704 125.95-101.074-242.476-1052.01-408.907l-699.85 1484.267 2837.75 1338.01 326.02-886.44Z"
+      fill="#A41C42"
+      fill-opacity=".2"
+    />
+    <path
+      d="M1116.26 1863.69c-355.457-78.98-720.318-535.27-825.287-1115.521l-1.594-8.816C185.286 163.833 112.786-237.016-762.678-643.898L-1822.83 608.665 571.922 2635.55l544.338-771.86Z"
+      fill="#A41C42"
+      fill-opacity=".2"
+    />
+  </svg>
+</div>
+<div class="px-4 py-10 sm:px-6 sm:py-28 lg:px-8 xl:px-28 xl:py-32">
+  <div class="mx-auto max-w-xl lg:mx-0">
+    <svg viewBox="0 0 71 48" class="h-12" aria-hidden="true">
+      <path
+        d="m26.371 33.477-.552-.1c-3.92-.729-6.397-3.1-7.57-6.829-.733-2.324.597-4.035 3.035-4.148 1.995-.092 3.362 1.055 4.57 2.39 1.557 1.72 2.984 3.558 4.514 5.305 2.202 2.515 4.797 4.134 8.347 3.634 3.183-.448 5.958-1.725 8.371-3.828.363-.316.761-.592 1.144-.886l-.241-.284c-2.027.63-4.093.841-6.205.735-3.195-.16-6.24-.828-8.964-2.582-2.486-1.601-4.319-3.746-5.19-6.611-.704-2.315.736-3.934 3.135-3.6.948.133 1.746.56 2.463 1.165.583.493 1.143 1.015 1.738 1.493 2.8 2.25 6.712 2.375 10.265-.068-5.842-.026-9.817-3.24-13.308-7.313-1.366-1.594-2.7-3.216-4.095-4.785-2.698-3.036-5.692-5.71-9.79-6.623C12.8-.623 7.745.14 2.893 2.361 1.926 2.804.997 3.319 0 4.149c.494 0 .763.006 1.032 0 2.446-.064 4.28 1.023 5.602 3.024.962 1.457 1.415 3.104 1.761 4.798.513 2.515.247 5.078.544 7.605.761 6.494 4.08 11.026 10.26 13.346 2.267.852 4.591 1.135 7.172.555ZM10.751 3.852c-.976.246-1.756-.148-2.56-.962 1.377-.343 2.592-.476 3.897-.528-.107.848-.607 1.306-1.336 1.49Zm32.002 37.924c-.085-.626-.62-.901-1.04-1.228-1.857-1.446-4.03-1.958-6.333-2-1.375-.026-2.735-.128-4.031-.61-.595-.22-1.26-.505-1.244-1.272.015-.78.693-1 1.31-1.184.505-.15 1.026-.247 1.6-.382-1.46-.936-2.886-1.065-4.787-.3-2.993 1.202-5.943 1.06-8.926-.017-1.684-.608-3.179-1.563-4.735-2.408l-.043.03a2.96 2.96 0 0 0 .04-.029c-.038-.117-.107-.12-.197-.054l.122.107c1.29 2.115 3.034 3.817 5.004 5.271 3.793 2.8 7.936 4.471 12.784 3.73A66.714 66.714 0 0 1 37 40.877c1.98-.16 3.866.398 5.753.899Zm-9.14-30.345c-.105-.076-.206-.266-.42-.069 1.745 2.36 3.985 4.098 6.683 5.193 4.354 1.767 8.773 2.07 13.293.51 3.51-1.21 6.033-.028 7.343 3.38.19-3.955-2.137-6.837-5.843-7.401-2.084-.318-4.01.373-5.962.94-5.434 1.575-10.485.798-15.094-2.553Zm27.085 15.425c.708.059 1.416.123 2.124.185-1.6-1.405-3.55-1.517-5.523-1.404-3.003.17-5.167 1.903-7.14 3.972-1.739 1.824-3.31 3.87-5.903 4.604.043.078.054.117.066.117.35.005.699.021 1.047.005 3.768-.17 7.317-.965 10.14-3.7.89-.86 1.685-1.817 2.544-2.71.716-.746 1.584-1.159 2.645-1.07Zm-8.753-4.67c-2.812.246-5.254 1.409-7.548 2.943-1.766 1.18-3.654 1.738-5.776 1.37-.374-.066-.75-.114-1.124-.17l-.013.156c.135.07.265.151.405.207.354.14.702.308 1.07.395 4.083.971 7.992.474 11.516-1.803 2.221-1.435 4.521-1.707 7.013-1.336.252.038.503.083.756.107.234.022.479.255.795.003-2.179-1.574-4.526-2.096-7.094-1.872Zm-10.049-9.544c1.475.051 2.943-.142 4.486-1.059-.452.04-.643.04-.827.076-2.126.424-4.033-.04-5.733-1.383-.623-.493-1.257-.974-1.889-1.457-2.503-1.914-5.374-2.555-8.514-2.5.05.154.054.26.108.315 3.417 3.455 7.371 5.836 12.369 6.008Zm24.727 17.731c-2.114-2.097-4.952-2.367-7.578-.537 1.738.078 3.043.632 4.101 1.728.374.388.763.768 1.182 1.106 1.6 1.29 4.311 1.352 5.896.155-1.861-.726-1.861-.726-3.601-2.452Zm-21.058 16.06c-1.858-3.46-4.981-4.24-8.59-4.008a9.667 9.667 0 0 1 2.977 1.39c.84.586 1.547 1.311 2.243 2.055 1.38 1.473 3.534 2.376 4.962 2.07-.656-.412-1.238-.848-1.592-1.507Zm17.29-19.32c0-.023.001-.045.003-.068l-.006.006.006-.006-.036-.004.021.018.012.053Zm-20 14.744a7.61 7.61 0 0 0-.072-.041.127.127 0 0 0 .015.043c.005.008.038 0 .058-.002Zm-.072-.041-.008-.034-.008.01.008-.01-.022-.006.005.026.024.014Z"
+        fill="#FD4F00"
+      />
+    </svg>
+    <div class="mt-10 flex justify-between items-center">
+      <h1 class="flex items-center text-sm font-semibold leading-6">
+        Phoenix Framework
+        <small class="badge badge-warning badge-sm ml-3">
+          v{Application.spec(:phoenix, :vsn)}
+        </small>
+      </h1>
+    </div>
+
+    <p class="text-[2rem] mt-4 font-semibold leading-10 tracking-tighter text-balance">
+      Peace of mind from prototype to production.
+    </p>
+    <p class="mt-4 leading-7 text-base-content/70">
+      Build rich, interactive web applications quickly, with less code and fewer moving parts. Join our growing community of developers using Phoenix to craft APIs, HTML5 apps and more, for fun or at scale.
+    </p>
+    <div class="flex">
+      <div class="w-full sm:w-auto">
+        <div class="mt-10 grid grid-cols-1 gap-x-6 gap-y-4 sm:grid-cols-3">
+          <a
+            href="https://hexdocs.pm/phoenix/overview.html"
+            class="group relative rounded-box px-6 py-4 text-sm font-semibold leading-6 sm:py-6"
+          >
+            <span class="absolute inset-0 rounded-box bg-base-200 transition group-hover:bg-base-300 sm:group-hover:scale-105">
+            </span>
+            <span class="relative flex items-center gap-4 sm:flex-col">
+              <svg viewBox="0 0 24 24" fill="none" aria-hidden="true" class="h-6 w-6">
+                <path d="m12 4 10-2v18l-10 2V4Z" fill="currentColor" fill-opacity=".15" />
+                <path
+                  d="M12 4 2 2v18l10 2m0-18v18m0-18 10-2v18l-10 2"
+                  stroke="currentColor"
+                  stroke-width="2"
+                  stroke-linecap="round"
+                  stroke-linejoin="round"
+                />
+              </svg>
+              Guides &amp; Docs
+            </span>
+          </a>
+          <a
+            href="https://github.com/phoenixframework/phoenix"
+            class="group relative rounded-box px-6 py-4 text-sm font-semibold leading-6 sm:py-6"
+          >
+            <span class="absolute inset-0 rounded-box bg-base-200 transition group-hover:bg-base-300 sm:group-hover:scale-105">
+            </span>
+            <span class="relative flex items-center gap-4 sm:flex-col">
+              <svg viewBox="0 0 24 24" aria-hidden="true" class="h-6 w-6">
+                <path
+                  fill="currentColor"
+                  fill-rule="evenodd"
+                  clip-rule="evenodd"
+                  d="M12 0C5.37 0 0 5.506 0 12.303c0 5.445 3.435 10.043 8.205 11.674.6.107.825-.262.825-.585 0-.292-.015-1.261-.015-2.291C6 21.67 5.22 20.346 4.98 19.654c-.135-.354-.72-1.446-1.23-1.738-.42-.23-1.02-.8-.015-.815.945-.015 1.62.892 1.845 1.261 1.08 1.86 2.805 1.338 3.495 1.015.105-.8.42-1.338.765-1.645-2.67-.308-5.46-1.37-5.46-6.075 0-1.338.465-2.446 1.23-3.307-.12-.308-.54-1.569.12-3.26 0 0 1.005-.323 3.3 1.26.96-.276 1.98-.415 3-.415s2.04.139 3 .416c2.295-1.6 3.3-1.261 3.3-1.261.66 1.691.24 2.952.12 3.26.765.861 1.23 1.953 1.23 3.307 0 4.721-2.805 5.767-5.475 6.075.435.384.81 1.122.81 2.276 0 1.645-.015 2.968-.015 3.383 0 .323.225.707.825.585a12.047 12.047 0 0 0 5.919-4.489A12.536 12.536 0 0 0 24 12.304C24 5.505 18.63 0 12 0Z"
+                />
+              </svg>
+              Source Code
+            </span>
+          </a>
+          <a
+            href={"https://github.com/phoenixframework/phoenix/blob/v#{Application.spec(:phoenix, :vsn)}/CHANGELOG.md"}
+            class="group relative rounded-box px-6 py-4 text-sm font-semibold leading-6 sm:py-6"
+          >
+            <span class="absolute inset-0 rounded-box bg-base-200 transition group-hover:bg-base-300 sm:group-hover:scale-105">
+            </span>
+            <span class="relative flex items-center gap-4 sm:flex-col">
+              <svg viewBox="0 0 24 24" fill="none" aria-hidden="true" class="h-6 w-6">
+                <path
+                  d="M12 1v6M12 17v6"
+                  stroke="currentColor"
+                  stroke-width="2"
+                  stroke-linecap="round"
+                  stroke-linejoin="round"
+                />
+                <circle
+                  cx="12"
+                  cy="12"
+                  r="4"
+                  fill="currentColor"
+                  fill-opacity=".15"
+                  stroke="currentColor"
+                  stroke-width="2"
+                  stroke-linecap="round"
+                  stroke-linejoin="round"
+                />
+              </svg>
+              Changelog
+            </span>
+          </a>
+        </div>
+        <div class="mt-10 grid grid-cols-1 gap-y-4 text-sm leading-6 text-base-content/80 sm:grid-cols-2">
+          <div>
+            <a
+              href="https://elixirforum.com"
+              class="group -mx-2 -my-0.5 inline-flex items-center gap-3 rounded-lg px-2 py-0.5 hover:bg-base-200 hover:text-base-content"
+            >
+              <svg
+                viewBox="0 0 16 16"
+                aria-hidden="true"
+                class="h-4 w-4 fill-base-content/40 group-hover:fill-base-content"
+              >
+                <path d="M8 13.833c3.866 0 7-2.873 7-6.416C15 3.873 11.866 1 8 1S1 3.873 1 7.417c0 1.081.292 2.1.808 2.995.606 1.05.806 2.399.086 3.375l-.208.283c-.285.386-.01.905.465.85.852-.098 2.048-.318 3.137-.81a3.717 3.717 0 0 1 1.91-.318c.263.027.53.041.802.041Z" />
+              </svg>
+              Discuss on the Elixir Forum
+            </a>
+          </div>
+          <div>
+            <a
+              href="https://discord.gg/elixir"
+              class="group -mx-2 -my-0.5 inline-flex items-center gap-3 rounded-lg px-2 py-0.5 hover:bg-base-200 hover:text-base-content"
+            >
+              <svg
+                viewBox="0 0 16 16"
+                aria-hidden="true"
+                class="h-4 w-4 fill-base-content/40 group-hover:fill-base-content"
+              >
+                <path d="M13.545 2.995c-1.02-.46-2.114-.8-3.257-.994a.05.05 0 0 0-.052.024c-.141.246-.297.567-.406.82a12.377 12.377 0 0 0-3.658 0 8.238 8.238 0 0 0-.412-.82.052.052 0 0 0-.052-.024 13.315 13.315 0 0 0-3.257.994.046.046 0 0 0-.021.018C.356 6.063-.213 9.036.066 11.973c.001.015.01.029.02.038a13.353 13.353 0 0 0 3.996 1.987.052.052 0 0 0 .056-.018c.308-.414.582-.85.818-1.309a.05.05 0 0 0-.028-.069 8.808 8.808 0 0 1-1.248-.585.05.05 0 0 1-.005-.084c.084-.062.168-.126.248-.191a.05.05 0 0 1 .051-.007c2.619 1.176 5.454 1.176 8.041 0a.05.05 0 0 1 .053.006c.08.065.164.13.248.192a.05.05 0 0 1-.004.084c-.399.23-.813.423-1.249.585a.05.05 0 0 0-.027.07c.24.457.514.893.817 1.307a.051.051 0 0 0 .056.019 13.31 13.31 0 0 0 4.001-1.987.05.05 0 0 0 .021-.037c.334-3.396-.559-6.345-2.365-8.96a.04.04 0 0 0-.021-.02Zm-8.198 7.19c-.789 0-1.438-.712-1.438-1.587 0-.874.637-1.586 1.438-1.586.807 0 1.45.718 1.438 1.586 0 .875-.637 1.587-1.438 1.587Zm5.316 0c-.788 0-1.438-.712-1.438-1.587 0-.874.637-1.586 1.438-1.586.807 0 1.45.718 1.438 1.586 0 .875-.63 1.587-1.438 1.587Z" />
+              </svg>
+              Join our Discord server
+            </a>
+          </div>
+          <div>
+            <a
+              href="https://elixir-slack.community/"
+              class="group -mx-2 -my-0.5 inline-flex items-center gap-3 rounded-lg px-2 py-0.5 hover:bg-base-200 hover:text-base-content"
+            >
+              <svg
+                viewBox="0 0 16 16"
+                aria-hidden="true"
+                class="h-4 w-4 fill-base-content/40 group-hover:fill-base-content"
+              >
+                <path d="M3.361 10.11a1.68 1.68 0 1 1-1.68-1.681h1.68v1.682ZM4.209 10.11a1.68 1.68 0 1 1 3.361 0v4.21a1.68 1.68 0 1 1-3.361 0v-4.21ZM5.89 3.361a1.68 1.68 0 1 1 1.681-1.68v1.68H5.89ZM5.89 4.209a1.68 1.68 0 1 1 0 3.361H1.68a1.68 1.68 0 1 1 0-3.361h4.21ZM12.639 5.89a1.68 1.68 0 1 1 1.68 1.681h-1.68V5.89ZM11.791 5.89a1.68 1.68 0 1 1-3.361 0V1.68a1.68 1.68 0 0 1 3.361 0v4.21ZM10.11 12.639a1.68 1.68 0 1 1-1.681 1.68v-1.68h1.682ZM10.11 11.791a1.68 1.68 0 1 1 0-3.361h4.21a1.68 1.68 0 1 1 0 3.361h-4.21Z" />
+              </svg>
+              Join us on Slack
+            </a>
+          </div>
+          <div>
+            <a
+              href="https://fly.io/docs/elixir/getting-started/"
+              class="group -mx-2 -my-0.5 inline-flex items-center gap-3 rounded-lg px-2 py-0.5 hover:bg-base-200 hover:text-base-content"
+            >
+              <svg
+                viewBox="0 0 20 20"
+                aria-hidden="true"
+                class="h-4 w-4 fill-base-content/40 group-hover:fill-base-content"
+              >
+                <path d="M1 12.5A4.5 4.5 0 005.5 17H15a4 4 0 001.866-7.539 3.504 3.504 0 00-4.504-4.272A4.5 4.5 0 004.06 8.235 4.502 4.502 0 001 12.5z" />
+              </svg>
+              Deploy your application
+            </a>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+</div>

lib/gc_index_relay_web/endpoint.ex

@@ -0,0 +1,55 @@
+defmodule GcIndexRelayWeb.Endpoint do
+  use Phoenix.Endpoint, otp_app: :gc_index_relay
+
+  # The session will be stored in the cookie and signed,
+  # this means its contents can be read but not tampered with.
+  # Set :encryption_salt if you would also like to encrypt it.
+  @session_options [
+    store: :cookie,
+    key: "_gc_index_relay_key",
+    signing_salt: "60nW1HLa",
+    same_site: "Lax"
+  ]
+
+  socket "/live", Phoenix.LiveView.Socket,
+    websocket: [connect_info: [session: @session_options]],
+    longpoll: [connect_info: [session: @session_options]]
+
+  # Serve at "/" the static files from "priv/static" directory.
+  #
+  # When code reloading is disabled (e.g., in production),
+  # the `gzip` option is enabled to serve compressed
+  # static files generated by running `phx.digest`.
+  plug Plug.Static,
+    at: "/",
+    from: :gc_index_relay,
+    gzip: not code_reloading?,
+    only: GcIndexRelayWeb.static_paths(),
+    raise_on_missing_only: code_reloading?
+
+  # Code reloading can be explicitly enabled under the
+  # :code_reloader configuration of your endpoint.
+  if code_reloading? do
+    socket "/phoenix/live_reload/socket", Phoenix.LiveReloader.Socket
+    plug Phoenix.LiveReloader
+    plug Phoenix.CodeReloader
+    plug Phoenix.Ecto.CheckRepoStatus, otp_app: :gc_index_relay
+  end
+
+  plug Phoenix.LiveDashboard.RequestLogger,
+    param_key: "request_logger",
+    cookie_key: "request_logger"
+
+  plug Plug.RequestId
+  plug Plug.Telemetry, event_prefix: [:phoenix, :endpoint]
+
+  plug Plug.Parsers,
+    parsers: [:urlencoded, :multipart, :json],
+    pass: ["*/*"],
+    json_decoder: Phoenix.json_library()
+
+  plug Plug.MethodOverride
+  plug Plug.Head
+  plug Plug.Session, @session_options
+  plug GcIndexRelayWeb.Router
+end

lib/gc_index_relay_web/gettext.ex

@@ -0,0 +1,25 @@
+defmodule GcIndexRelayWeb.Gettext do
+  @moduledoc """
+  A module providing Internationalization with a gettext-based API.
+
+  By using [Gettext](https://hexdocs.pm/gettext), your module compiles translations
+  that you can use in your application. To use this Gettext backend module,
+  call `use Gettext` and pass it as an option:
+
+      use Gettext, backend: GcIndexRelayWeb.Gettext
+
+      # Simple translation
+      gettext("Here is the string to translate")
+
+      # Plural translation
+      ngettext("Here is the string to translate",
+               "Here are the strings to translate",
+               3)
+
+      # Domain-based translation
+      dgettext("errors", "Here is the error message to translate")
+
+  See the [Gettext Docs](https://hexdocs.pm/gettext) for detailed usage.
+  """
+  use Gettext.Backend, otp_app: :gc_index_relay
+end

lib/gc_index_relay_web/router.ex

@@ -0,0 +1,50 @@
+defmodule GcIndexRelayWeb.Router do
+  use GcIndexRelayWeb, :router
+
+  pipeline :browser do
+    plug :accepts, ["html"]
+    plug :fetch_session
+    plug :fetch_live_flash
+    plug :put_root_layout, html: {GcIndexRelayWeb.Layouts, :root}
+    plug :protect_from_forgery
+    plug :put_secure_browser_headers
+  end
+
+  pipeline :api do
+    plug :accepts, ["json"]
+  end
+
+  scope "/", GcIndexRelayWeb do
+    pipe_through :browser
+
+    get "/", PageController, :home
+  end
+
+  scope "/api", GcIndexRelayWeb do
+    pipe_through :api
+
+    resources "/events", EventController, only: [:show, :create, :delete]
+  end
+
+  # Other scopes may use custom stacks.
+  # scope "/api", GcIndexRelayWeb do
+  #   pipe_through :api
+  # end
+
+  # Enable LiveDashboard and Swoosh mailbox preview in development
+  if Application.compile_env(:gc_index_relay, :dev_routes) do
+    # If you want to use the LiveDashboard in production, you should put
+    # it behind authentication and allow only admins to access it.
+    # If your application does not have an admins-only section yet,
+    # you can use Plug.BasicAuth to set up some basic authentication
+    # as long as you are also using SSL (which you should anyway).
+    import Phoenix.LiveDashboard.Router
+
+    scope "/dev" do
+      pipe_through :browser
+
+      live_dashboard "/dashboard", metrics: GcIndexRelayWeb.Telemetry
+      forward "/mailbox", Plug.Swoosh.MailboxPreview
+    end
+  end
+end

lib/gc_index_relay_web/telemetry.ex

@@ -0,0 +1,93 @@
+defmodule GcIndexRelayWeb.Telemetry do
+  use Supervisor
+  import Telemetry.Metrics
+
+  def start_link(arg) do
+    Supervisor.start_link(__MODULE__, arg, name: __MODULE__)
+  end
+
+  @impl true
+  def init(_arg) do
+    children = [
+      # Telemetry poller will execute the given period measurements
+      # every 10_000ms. Learn more here: https://hexdocs.pm/telemetry_metrics
+      {:telemetry_poller, measurements: periodic_measurements(), period: 10_000}
+      # Add reporters as children of your supervision tree.
+      # {Telemetry.Metrics.ConsoleReporter, metrics: metrics()}
+    ]
+
+    Supervisor.init(children, strategy: :one_for_one)
+  end
+
+  def metrics do
+    [
+      # Phoenix Metrics
+      summary("phoenix.endpoint.start.system_time",
+        unit: {:native, :millisecond}
+      ),
+      summary("phoenix.endpoint.stop.duration",
+        unit: {:native, :millisecond}
+      ),
+      summary("phoenix.router_dispatch.start.system_time",
+        tags: [:route],
+        unit: {:native, :millisecond}
+      ),
+      summary("phoenix.router_dispatch.exception.duration",
+        tags: [:route],
+        unit: {:native, :millisecond}
+      ),
+      summary("phoenix.router_dispatch.stop.duration",
+        tags: [:route],
+        unit: {:native, :millisecond}
+      ),
+      summary("phoenix.socket_connected.duration",
+        unit: {:native, :millisecond}
+      ),
+      sum("phoenix.socket_drain.count"),
+      summary("phoenix.channel_joined.duration",
+        unit: {:native, :millisecond}
+      ),
+      summary("phoenix.channel_handled_in.duration",
+        tags: [:event],
+        unit: {:native, :millisecond}
+      ),
+
+      # Database Metrics
+      summary("gc_index_relay.repo.query.total_time",
+        unit: {:native, :millisecond},
+        description: "The sum of the other measurements"
+      ),
+      summary("gc_index_relay.repo.query.decode_time",
+        unit: {:native, :millisecond},
+        description: "The time spent decoding the data received from the database"
+      ),
+      summary("gc_index_relay.repo.query.query_time",
+        unit: {:native, :millisecond},
+        description: "The time spent executing the query"
+      ),
+      summary("gc_index_relay.repo.query.queue_time",
+        unit: {:native, :millisecond},
+        description: "The time spent waiting for a database connection"
+      ),
+      summary("gc_index_relay.repo.query.idle_time",
+        unit: {:native, :millisecond},
+        description:
+          "The time the connection spent waiting before being checked out for the query"
+      ),
+
+      # VM Metrics
+      summary("vm.memory.total", unit: {:byte, :kilobyte}),
+      summary("vm.total_run_queue_lengths.total"),
+      summary("vm.total_run_queue_lengths.cpu"),
+      summary("vm.total_run_queue_lengths.io")
+    ]
+  end
+
+  defp periodic_measurements do
+    [
+      # A module, function and arguments to be invoked periodically.
+      # This function must call :telemetry.execute/3 and a metric must be added above.
+      # {GcIndexRelayWeb, :count_users, []}
+    ]
+  end
+end

mix.exs

@@ -0,0 +1,78 @@
+defmodule GcIndexRelay.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :gc_index_relay,
+      version: "0.1.0",
+      elixir: "~> 1.15",
+      elixirc_paths: elixirc_paths(Mix.env()),
+      start_permanent: Mix.env() == :prod,
+      aliases: aliases(),
+      deps: deps(),
+      compilers: [:phoenix_live_view] ++ Mix.compilers(),
+      listeners: [Phoenix.CodeReloader]
+    ]
+  end
+
+  # Configuration for the OTP application.
+  #
+  # Type `mix help compile.app` for more information.
+  def application do
+    [
+      mod: {GcIndexRelay.Application, []},
+      extra_applications: [:logger, :runtime_tools]
+    ]
+  end
+
+  def cli do
+    [
+      preferred_envs: [precommit: :test]
+    ]
+  end
+
+  # Specifies which paths to compile per environment.
+  defp elixirc_paths(:test), do: ["lib", "test/support"]
+  defp elixirc_paths(_), do: ["lib"]
+
+  # Specifies your project dependencies.
+  #
+  # Type `mix help deps` for examples and options.
+  defp deps do
+    [
+      {:phoenix, "~> 1.8.3"},
+      {:phoenix_ecto, "~> 4.5"},
+      {:ecto_sql, "~> 3.13"},
+      {:postgrex, ">= 0.0.0"},
+      {:phoenix_html, "~> 4.1"},
+      {:phoenix_live_reload, "~> 1.2", only: :dev},
+      {:phoenix_live_view, "~> 1.1.0"},
+      {:lazy_html, ">= 0.1.0", only: :test},
+      {:phoenix_live_dashboard, "~> 0.8.3"},
+      {:swoosh, "~> 1.16"},
+      {:req, "~> 0.5"},
+      {:telemetry_metrics, "~> 1.0"},
+      {:telemetry_poller, "~> 1.0"},
+      {:gettext, "~> 1.0"},
+      {:jason, "~> 1.2"},
+      {:dns_cluster, "~> 0.2.0"},
+      {:bandit, "~> 1.5"}
+    ]
+  end
+
+  # Aliases are shortcuts or tasks specific to the current project.
+  # For example, to install project dependencies and perform other setup tasks, run:
+  #
+  #     $ mix setup
+  #
+  # See the documentation for `Mix` for more info on aliases.
+  defp aliases do
+    [
+      setup: ["deps.get", "ecto.setup"],
+      "ecto.setup": ["ecto.create", "ecto.migrate", "run priv/repo/seeds.exs"],
+      "ecto.reset": ["ecto.drop", "ecto.setup"],
+      test: ["ecto.create --quiet", "ecto.migrate --quiet", "test"],
+      precommit: ["compile --warnings-as-errors", "deps.unlock --unused", "format", "test"]
+    ]
+  end
+end

mix.lock

@@ -0,0 +1,43 @@
+%{
+  "bandit": {:hex, :bandit, "1.10.1", "6b1f8609d947ae2a74da5bba8aee938c94348634e54e5625eef622ca0bbbb062", [:mix], [{:hpax, "~> 1.0", [hex: :hpax, repo: "hexpm", optional: false]}, {:plug, "~> 1.18", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:thousand_island, "~> 1.0", [hex: :thousand_island, repo: "hexpm", optional: false]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "4b4c35f273030e44268ace53bf3d5991dfc385c77374244e2f960876547671aa"},
+  "cc_precompiler": {:hex, :cc_precompiler, "0.1.11", "8c844d0b9fb98a3edea067f94f616b3f6b29b959b6b3bf25fee94ffe34364768", [:mix], [{:elixir_make, "~> 0.7", [hex: :elixir_make, repo: "hexpm", optional: false]}], "hexpm", "3427232caf0835f94680e5bcf082408a70b48ad68a5f5c0b02a3bea9f3a075b9"},
+  "db_connection": {:hex, :db_connection, "2.9.0", "a6a97c5c958a2d7091a58a9be40caf41ab496b0701d21e1d1abff3fa27a7f371", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "17d502eacaf61829db98facf6f20808ed33da6ccf495354a41e64fe42f9c509c"},
+  "decimal": {:hex, :decimal, "2.3.0", "3ad6255aa77b4a3c4f818171b12d237500e63525c2fd056699967a3e7ea20f62", [:mix], [], "hexpm", "a4d66355cb29cb47c3cf30e71329e58361cfcb37c34235ef3bf1d7bf3773aeac"},
+  "dns_cluster": {:hex, :dns_cluster, "0.2.0", "aa8eb46e3bd0326bd67b84790c561733b25c5ba2fe3c7e36f28e88f384ebcb33", [:mix], [], "hexpm", "ba6f1893411c69c01b9e8e8f772062535a4cf70f3f35bcc964a324078d8c8240"},
+  "ecto": {:hex, :ecto, "3.13.5", "9d4a69700183f33bf97208294768e561f5c7f1ecf417e0fa1006e4a91713a834", [:mix], [{:decimal, "~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "df9efebf70cf94142739ba357499661ef5dbb559ef902b68ea1f3c1fabce36de"},
+  "ecto_sql": {:hex, :ecto_sql, "3.13.4", "b6e9d07557ddba62508a9ce4a484989a5bb5e9a048ae0e695f6d93f095c25d60", [:mix], [{:db_connection, "~> 2.4.1 or ~> 2.5", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.13.0", [hex: :ecto, repo: "hexpm", optional: false]}, {:myxql, "~> 0.7", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.19 or ~> 1.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:tds, "~> 2.1.1 or ~> 2.2", [hex: :tds, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "2b38cf0749ca4d1c5a8bcbff79bbe15446861ca12a61f9fba604486cb6b62a14"},
+  "elixir_make": {:hex, :elixir_make, "0.9.0", "6484b3cd8c0cee58f09f05ecaf1a140a8c97670671a6a0e7ab4dc326c3109726", [:mix], [], "hexpm", "db23d4fd8b757462ad02f8aa73431a426fe6671c80b200d9710caf3d1dd0ffdb"},
+  "expo": {:hex, :expo, "1.1.1", "4202e1d2ca6e2b3b63e02f69cfe0a404f77702b041d02b58597c00992b601db5", [:mix], [], "hexpm", "5fb308b9cb359ae200b7e23d37c76978673aa1b06e2b3075d814ce12c5811640"},
+  "file_system": {:hex, :file_system, "1.1.1", "31864f4685b0148f25bd3fbef2b1228457c0c89024ad67f7a81a3ffbc0bbad3a", [:mix], [], "hexpm", "7a15ff97dfe526aeefb090a7a9d3d03aa907e100e262a0f8f7746b78f8f87a5d"},
+  "finch": {:hex, :finch, "0.20.0", "5330aefb6b010f424dcbbc4615d914e9e3deae40095e73ab0c1bb0968933cadf", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.6.2 or ~> 1.7", [hex: :mint, repo: "hexpm", optional: false]}, {:nimble_options, "~> 0.4 or ~> 1.0", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 1.1", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "2658131a74d051aabfcba936093c903b8e89da9a1b63e430bee62045fa9b2ee2"},
+  "fine": {:hex, :fine, "0.1.4", "b19a89c1476c7c57afb5f9314aed5960b5bc95d5277de4cb5ee8e1d1616ce379", [:mix], [], "hexpm", "be3324cc454a42d80951cf6023b9954e9ff27c6daa255483b3e8d608670303f5"},
+  "gettext": {:hex, :gettext, "1.0.2", "5457e1fd3f4abe47b0e13ff85086aabae760497a3497909b8473e0acee57673b", [:mix], [{:expo, "~> 0.5.1 or ~> 1.0", [hex: :expo, repo: "hexpm", optional: false]}], "hexpm", "eab805501886802071ad290714515c8c4a17196ea76e5afc9d06ca85fb1bfeb3"},
+  "hpax": {:hex, :hpax, "1.0.3", "ed67ef51ad4df91e75cc6a1494f851850c0bd98ebc0be6e81b026e765ee535aa", [:mix], [], "hexpm", "8eab6e1cfa8d5918c2ce4ba43588e894af35dbd8e91e6e55c817bca5847df34a"},
+  "idna": {:hex, :idna, "6.1.1", "8a63070e9f7d0c62eb9d9fcb360a7de382448200fbbd1b106cc96d3d8099df8d", [:rebar3], [{:unicode_util_compat, "~> 0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "92376eb7894412ed19ac475e4a86f7b413c1b9fbb5bd16dccd57934157944cea"},
+  "jason": {:hex, :jason, "1.4.4", "b9226785a9aa77b6857ca22832cffa5d5011a667207eb2a0ad56adb5db443b8a", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "c5eb0cab91f094599f94d55bc63409236a8ec69a21a67814529e8d5f6cc90b3b"},
+  "lazy_html": {:hex, :lazy_html, "0.1.8", "677a8642e644eef8de98f3040e2520d42d0f0f8bd6c5cd49db36504e34dffe91", [:make, :mix], [{:cc_precompiler, "~> 0.1", [hex: :cc_precompiler, repo: "hexpm", optional: false]}, {:elixir_make, "~> 0.9.0", [hex: :elixir_make, repo: "hexpm", optional: false]}, {:fine, "~> 0.1.0", [hex: :fine, repo: "hexpm", optional: false]}], "hexpm", "0d8167d930b704feb94b41414ca7f5779dff9bca7fcf619fcef18de138f08736"},
+  "mime": {:hex, :mime, "2.0.7", "b8d739037be7cd402aee1ba0306edfdef982687ee7e9859bee6198c1e7e2f128", [:mix], [], "hexpm", "6171188e399ee16023ffc5b76ce445eb6d9672e2e241d2df6050f3c771e80ccd"},
+  "mint": {:hex, :mint, "1.7.1", "113fdb2b2f3b59e47c7955971854641c61f378549d73e829e1768de90fc1abf1", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1 or ~> 0.2.0 or ~> 1.0", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "fceba0a4d0f24301ddee3024ae116df1c3f4bb7a563a731f45fdfeb9d39a231b"},
+  "nimble_options": {:hex, :nimble_options, "1.1.1", "e3a492d54d85fc3fd7c5baf411d9d2852922f66e69476317787a7b2bb000a61b", [:mix], [], "hexpm", "821b2470ca9442c4b6984882fe9bb0389371b8ddec4d45a9504f00a66f650b44"},
+  "nimble_pool": {:hex, :nimble_pool, "1.1.0", "bf9c29fbdcba3564a8b800d1eeb5a3c58f36e1e11d7b7fb2e084a643f645f06b", [:mix], [], "hexpm", "af2e4e6b34197db81f7aad230c1118eac993acc0dae6bc83bac0126d4ae0813a"},
+  "phoenix": {:hex, :phoenix, "1.8.3", "49ac5e485083cb1495a905e47eb554277bdd9c65ccb4fc5100306b350151aa95", [:mix], [{:bandit, "~> 1.0", [hex: :bandit, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:phoenix_pubsub, "~> 2.1", [hex: :phoenix_pubsub, repo: "hexpm", optional: false]}, {:phoenix_template, "~> 1.0", [hex: :phoenix_template, repo: "hexpm", optional: false]}, {:phoenix_view, "~> 2.0", [hex: :phoenix_view, repo: "hexpm", optional: true]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.7", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:plug_crypto, "~> 1.2 or ~> 2.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:websock_adapter, "~> 0.5.3", [hex: :websock_adapter, repo: "hexpm", optional: false]}], "hexpm", "36169f95cc2e155b78be93d9590acc3f462f1e5438db06e6248613f27c80caec"},
+  "phoenix_ecto": {:hex, :phoenix_ecto, "4.7.0", "75c4b9dfb3efdc42aec2bd5f8bccd978aca0651dbcbc7a3f362ea5d9d43153c6", [:mix], [{:ecto, "~> 3.5", [hex: :ecto, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 2.14.2 or ~> 3.0 or ~> 4.1", [hex: :phoenix_html, repo: "hexpm", optional: true]}, {:plug, "~> 1.9", [hex: :plug, repo: "hexpm", optional: false]}, {:postgrex, "~> 0.16 or ~> 1.0", [hex: :postgrex, repo: "hexpm", optional: true]}], "hexpm", "1d75011e4254cb4ddf823e81823a9629559a1be93b4321a6a5f11a5306fbf4cc"},
+  "phoenix_html": {:hex, :phoenix_html, "4.3.0", "d3577a5df4b6954cd7890c84d955c470b5310bb49647f0a114a6eeecc850f7ad", [:mix], [], "hexpm", "3eaa290a78bab0f075f791a46a981bbe769d94bc776869f4f3063a14f30497ad"},
+  "phoenix_live_dashboard": {:hex, :phoenix_live_dashboard, "0.8.7", "405880012cb4b706f26dd1c6349125bfc903fb9e44d1ea668adaf4e04d4884b7", [:mix], [{:ecto, "~> 3.6.2 or ~> 3.7", [hex: :ecto, repo: "hexpm", optional: true]}, {:ecto_mysql_extras, "~> 0.5", [hex: :ecto_mysql_extras, repo: "hexpm", optional: true]}, {:ecto_psql_extras, "~> 0.7", [hex: :ecto_psql_extras, repo: "hexpm", optional: true]}, {:ecto_sqlite3_extras, "~> 1.1.7 or ~> 1.2.0", [hex: :ecto_sqlite3_extras, repo: "hexpm", optional: true]}, {:mime, "~> 1.6 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:phoenix_live_view, "~> 0.19 or ~> 1.0", [hex: :phoenix_live_view, repo: "hexpm", optional: false]}, {:telemetry_metrics, "~> 0.6 or ~> 1.0", [hex: :telemetry_metrics, repo: "hexpm", optional: false]}], "hexpm", "3a8625cab39ec261d48a13b7468dc619c0ede099601b084e343968309bd4d7d7"},
+  "phoenix_live_reload": {:hex, :phoenix_live_reload, "1.6.2", "b18b0773a1ba77f28c52decbb0f10fd1ac4d3ae5b8632399bbf6986e3b665f62", [:mix], [{:file_system, "~> 0.2.10 or ~> 1.0", [hex: :file_system, repo: "hexpm", optional: false]}, {:phoenix, "~> 1.4", [hex: :phoenix, repo: "hexpm", optional: false]}], "hexpm", "d1f89c18114c50d394721365ffb428cce24f1c13de0467ffa773e2ff4a30d5b9"},
+  "phoenix_live_view": {:hex, :phoenix_live_view, "1.1.20", "4f20850ee700b309b21906a0e510af1b916b454b4f810fb8581ada016eb42dfc", [:mix], [{:igniter, ">= 0.6.16 and < 1.0.0-0", [hex: :igniter, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:lazy_html, "~> 0.1.0", [hex: :lazy_html, repo: "hexpm", optional: true]}, {:phoenix, "~> 1.6.15 or ~> 1.7.0 or ~> 1.8.0-rc", [hex: :phoenix, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 3.3 or ~> 4.0", [hex: :phoenix_html, repo: "hexpm", optional: false]}, {:phoenix_template, "~> 1.0", [hex: :phoenix_template, repo: "hexpm", optional: false]}, {:phoenix_view, "~> 2.0", [hex: :phoenix_view, repo: "hexpm", optional: true]}, {:plug, "~> 1.15", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.2 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "c16abd605a21f778165cb0079946351ef20ef84eb1ef467a862fb9a173b1d27d"},
+  "phoenix_pubsub": {:hex, :phoenix_pubsub, "2.2.0", "ff3a5616e1bed6804de7773b92cbccfc0b0f473faf1f63d7daf1206c7aeaaa6f", [:mix], [], "hexpm", "adc313a5bf7136039f63cfd9668fde73bba0765e0614cba80c06ac9460ff3e96"},
+  "phoenix_template": {:hex, :phoenix_template, "1.0.4", "e2092c132f3b5e5b2d49c96695342eb36d0ed514c5b252a77048d5969330d639", [:mix], [{:phoenix_html, "~> 2.14.2 or ~> 3.0 or ~> 4.0", [hex: :phoenix_html, repo: "hexpm", optional: true]}], "hexpm", "2c0c81f0e5c6753faf5cca2f229c9709919aba34fab866d3bc05060c9c444206"},
+  "plug": {:hex, :plug, "1.19.1", "09bac17ae7a001a68ae393658aa23c7e38782be5c5c00c80be82901262c394c0", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.1.1 or ~> 1.2 or ~> 2.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "560a0017a8f6d5d30146916862aaf9300b7280063651dd7e532b8be168511e62"},
+  "plug_crypto": {:hex, :plug_crypto, "2.1.1", "19bda8184399cb24afa10be734f84a16ea0a2bc65054e23a62bb10f06bc89491", [:mix], [], "hexpm", "6470bce6ffe41c8bd497612ffde1a7e4af67f36a15eea5f921af71cf3e11247c"},
+  "postgrex": {:hex, :postgrex, "0.22.0", "fb027b58b6eab1f6de5396a2abcdaaeb168f9ed4eccbb594e6ac393b02078cbd", [:mix], [{:db_connection, "~> 2.9", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.5 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:table, "~> 0.1.0", [hex: :table, repo: "hexpm", optional: true]}], "hexpm", "a68c4261e299597909e03e6f8ff5a13876f5caadaddd0d23af0d0a61afcc5d84"},
+  "req": {:hex, :req, "0.5.17", "0096ddd5b0ed6f576a03dde4b158a0c727215b15d2795e59e0916c6971066ede", [:mix], [{:brotli, "~> 0.3.1", [hex: :brotli, repo: "hexpm", optional: true]}, {:ezstd, "~> 1.0", [hex: :ezstd, repo: "hexpm", optional: true]}, {:finch, "~> 0.17", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mime, "~> 2.0.6 or ~> 2.1", [hex: :mime, repo: "hexpm", optional: false]}, {:nimble_csv, "~> 1.0", [hex: :nimble_csv, repo: "hexpm", optional: true]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "0b8bc6ffdfebbc07968e59d3ff96d52f2202d0536f10fef4dc11dc02a2a43e39"},
+  "swoosh": {:hex, :swoosh, "1.20.0", "b04134c2b302da74c3a95ca4ddde191e4854d2847d6687783fecb023a9647598", [:mix], [{:bandit, ">= 1.0.0", [hex: :bandit, repo: "hexpm", optional: true]}, {:cowboy, "~> 1.1 or ~> 2.4", [hex: :cowboy, repo: "hexpm", optional: true]}, {:ex_aws, "~> 2.1", [hex: :ex_aws, repo: "hexpm", optional: true]}, {:finch, "~> 0.6", [hex: :finch, repo: "hexpm", optional: true]}, {:gen_smtp, "~> 0.13 or ~> 1.0", [hex: :gen_smtp, repo: "hexpm", optional: true]}, {:hackney, "~> 1.9", [hex: :hackney, repo: "hexpm", optional: true]}, {:idna, "~> 6.0", [hex: :idna, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mail, "~> 0.2", [hex: :mail, repo: "hexpm", optional: true]}, {:mime, "~> 1.1 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mua, "~> 0.2.3", [hex: :mua, repo: "hexpm", optional: true]}, {:multipart, "~> 0.4", [hex: :multipart, repo: "hexpm", optional: true]}, {:plug, "~> 1.9", [hex: :plug, repo: "hexpm", optional: true]}, {:plug_cowboy, ">= 1.0.0", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:req, "~> 0.5.10 or ~> 0.6 or ~> 1.0", [hex: :req, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.2 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "13e610f709bae54851d68afb6862882aa646e5c974bf49e3bf5edd84a73cf213"},
+  "telemetry": {:hex, :telemetry, "1.3.0", "fedebbae410d715cf8e7062c96a1ef32ec22e764197f70cda73d82778d61e7a2", [:rebar3], [], "hexpm", "7015fc8919dbe63764f4b4b87a95b7c0996bd539e0d499be6ec9d7f3875b79e6"},
+  "telemetry_metrics": {:hex, :telemetry_metrics, "1.1.0", "5bd5f3b5637e0abea0426b947e3ce5dd304f8b3bc6617039e2b5a008adc02f8f", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "e7b79e8ddfde70adb6db8a6623d1778ec66401f366e9a8f5dd0955c56bc8ce67"},
+  "telemetry_poller": {:hex, :telemetry_poller, "1.3.0", "d5c46420126b5ac2d72bc6580fb4f537d35e851cc0f8dbd571acf6d6e10f5ec7", [:rebar3], [{:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "51f18bed7128544a50f75897db9974436ea9bfba560420b646af27a9a9b35211"},
+  "thousand_island": {:hex, :thousand_island, "1.4.3", "2158209580f633be38d43ec4e3ce0a01079592b9657afff9080d5d8ca149a3af", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "6e4ce09b0fd761a58594d02814d40f77daff460c48a7354a15ab353bb998ea0b"},
+  "unicode_util_compat": {:hex, :unicode_util_compat, "0.7.1", "a48703a25c170eedadca83b11e88985af08d35f37c6f664d6dcfb106a97782fc", [:rebar3], [], "hexpm", "b3a917854ce3ae233619744ad1e0102e05673136776fb2fa76234f3e03b23642"},
+  "websock": {:hex, :websock, "0.5.3", "2f69a6ebe810328555b6fe5c831a851f485e303a7c8ce6c5f675abeb20ebdadc", [:mix], [], "hexpm", "6105453d7fac22c712ad66fab1d45abdf049868f253cf719b625151460b8b453"},
+  "websock_adapter": {:hex, :websock_adapter, "0.5.9", "43dc3ba6d89ef5dec5b1d0a39698436a1e856d000d84bf31a3149862b01a287f", [:mix], [{:bandit, ">= 0.6.0", [hex: :bandit, repo: "hexpm", optional: true]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.6", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "5534d5c9adad3c18a0f58a9371220d75a803bf0b9a3d87e6fe072faaeed76a08"},
+}

priv/gettext/en/LC_MESSAGES/errors.po

@@ -0,0 +1,112 @@
+## `msgid`s in this file come from POT (.pot) files.
+##
+## Do not add, change, or remove `msgid`s manually here as
+## they're tied to the ones in the corresponding POT file
+## (with the same domain).
+##
+## Use `mix gettext.extract --merge` or `mix gettext.merge`
+## to merge POT files into PO files.
+msgid ""
+msgstr ""
+"Language: en\n"
+
+## From Ecto.Changeset.cast/4
+msgid "can't be blank"
+msgstr ""
+
+## From Ecto.Changeset.unique_constraint/3
+msgid "has already been taken"
+msgstr ""
+
+## From Ecto.Changeset.put_change/3
+msgid "is invalid"
+msgstr ""
+
+## From Ecto.Changeset.validate_acceptance/3
+msgid "must be accepted"
+msgstr ""
+
+## From Ecto.Changeset.validate_format/3
+msgid "has invalid format"
+msgstr ""
+
+## From Ecto.Changeset.validate_subset/3
+msgid "has an invalid entry"
+msgstr ""
+
+## From Ecto.Changeset.validate_exclusion/3
+msgid "is reserved"
+msgstr ""
+
+## From Ecto.Changeset.validate_confirmation/3
+msgid "does not match confirmation"
+msgstr ""
+
+## From Ecto.Changeset.no_assoc_constraint/3
+msgid "is still associated with this entry"
+msgstr ""
+
+msgid "are still associated with this entry"
+msgstr ""
+
+## From Ecto.Changeset.validate_length/3
+msgid "should have %{count} item(s)"
+msgid_plural "should have %{count} item(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be %{count} character(s)"
+msgid_plural "should be %{count} character(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be %{count} byte(s)"
+msgid_plural "should be %{count} byte(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should have at least %{count} item(s)"
+msgid_plural "should have at least %{count} item(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be at least %{count} character(s)"
+msgid_plural "should be at least %{count} character(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be at least %{count} byte(s)"
+msgid_plural "should be at least %{count} byte(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should have at most %{count} item(s)"
+msgid_plural "should have at most %{count} item(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be at most %{count} character(s)"
+msgid_plural "should be at most %{count} character(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be at most %{count} byte(s)"
+msgid_plural "should be at most %{count} byte(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+## From Ecto.Changeset.validate_number/3
+msgid "must be less than %{number}"
+msgstr ""
+
+msgid "must be greater than %{number}"
+msgstr ""
+
+msgid "must be less than or equal to %{number}"
+msgstr ""
+
+msgid "must be greater than or equal to %{number}"
+msgstr ""
+
+msgid "must be equal to %{number}"
+msgstr ""

priv/gettext/errors.pot

@@ -0,0 +1,109 @@
+## This is a PO Template file.
+##
+## `msgid`s here are often extracted from source code.
+## Add new translations manually only if they're dynamic
+## translations that can't be statically extracted.
+##
+## Run `mix gettext.extract` to bring this file up to
+## date. Leave `msgstr`s empty as changing them here has no
+## effect: edit them in PO (`.po`) files instead.
+## From Ecto.Changeset.cast/4
+msgid "can't be blank"
+msgstr ""
+
+## From Ecto.Changeset.unique_constraint/3
+msgid "has already been taken"
+msgstr ""
+
+## From Ecto.Changeset.put_change/3
+msgid "is invalid"
+msgstr ""
+
+## From Ecto.Changeset.validate_acceptance/3
+msgid "must be accepted"
+msgstr ""
+
+## From Ecto.Changeset.validate_format/3
+msgid "has invalid format"
+msgstr ""
+
+## From Ecto.Changeset.validate_subset/3
+msgid "has an invalid entry"
+msgstr ""
+
+## From Ecto.Changeset.validate_exclusion/3
+msgid "is reserved"
+msgstr ""
+
+## From Ecto.Changeset.validate_confirmation/3
+msgid "does not match confirmation"
+msgstr ""
+
+## From Ecto.Changeset.no_assoc_constraint/3
+msgid "is still associated with this entry"
+msgstr ""
+
+msgid "are still associated with this entry"
+msgstr ""
+
+## From Ecto.Changeset.validate_length/3
+msgid "should have %{count} item(s)"
+msgid_plural "should have %{count} item(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be %{count} character(s)"
+msgid_plural "should be %{count} character(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be %{count} byte(s)"
+msgid_plural "should be %{count} byte(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should have at least %{count} item(s)"
+msgid_plural "should have at least %{count} item(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be at least %{count} character(s)"
+msgid_plural "should be at least %{count} character(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be at least %{count} byte(s)"
+msgid_plural "should be at least %{count} byte(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should have at most %{count} item(s)"
+msgid_plural "should have at most %{count} item(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be at most %{count} character(s)"
+msgid_plural "should be at most %{count} character(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be at most %{count} byte(s)"
+msgid_plural "should be at most %{count} byte(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+## From Ecto.Changeset.validate_number/3
+msgid "must be less than %{number}"
+msgstr ""
+
+msgid "must be greater than %{number}"
+msgstr ""
+
+msgid "must be less than or equal to %{number}"
+msgstr ""
+
+msgid "must be greater than or equal to %{number}"
+msgstr ""
+
+msgid "must be equal to %{number}"
+msgstr ""

priv/repo/migrations/.formatter.exs

@@ -0,0 +1,4 @@
+[
+  import_deps: [:ecto_sql],
+  inputs: ["*.exs"]
+]

priv/repo/migrations/20260129043804_add_nostr_events.exs

@@ -0,0 +1,31 @@
+defmodule GcIndexRelay.Repo.Migrations.AddNostrEvents do
+  use Ecto.Migration
+
+  def change do
+    create table(:events, primary_key: false) do
+      add :id, :binary_id, primary_key: true
+      add :pubkey, :binary, null: false
+      add :created_at, :utc_datetime, null: false
+      add :kind, :integer, null: false
+      add :content, :text
+      add :sig, :binary, null: false
+    end
+
+    create index(:events, [:pubkey])
+    create index(:events, [:kind])
+
+    create table(:tags) do
+      add :name, :string, null: false
+      add :value, :string, null: false
+      add :additional_values, {:array, :string}
+      add :event_id, references(:events, type: :binary_id, on_delete: :delete_all), null: false
+    end
+
+    create index(:tags, [:event_id])
+
+    create index(:tags, [:name, :value],
+             where: "length(name) = 1 AND name ~ '^[a-zA-Z]$'",
+             name: :single_letter_tags_index
+           )
+  end
+end

priv/repo/seeds.exs

@@ -0,0 +1,11 @@
+# Script for populating the database. You can run it as:
+#
+#     mix run priv/repo/seeds.exs
+#
+# Inside the script, you can read and write to any of your
+# repositories directly:
+#
+#     GcIndexRelay.Repo.insert!(%GcIndexRelay.SomeSchema{})
+#
+# We recommend using the bang functions (`insert!`, `update!`
+# and so on) as they will fail if something goes wrong.

priv/static/assets/css/app.css

@@ -0,0 +1 @@
+/* This file is for your main application CSS */

priv/static/assets/js/app.js

@@ -0,0 +1,19 @@
+// For Phoenix.HTML support, including form and button helpers
+// copy the following scripts into your javascript bundle:
+// * deps/phoenix_html/priv/static/phoenix_html.js
+
+// For Phoenix.Channels support, copy the following scripts
+// into your javascript bundle:
+// * deps/phoenix/priv/static/phoenix.js
+
+// For Phoenix.LiveView support, copy the following scripts
+// into your javascript bundle:
+// * deps/phoenix_live_view/priv/static/phoenix_live_view.js
+
+// Handle flash close
+// (you can safely remove this if you don't use the default flash component)
+document.querySelectorAll("[role=alert][data-flash]").forEach((el) => {
+  el.addEventListener("click", () => {
+    el.setAttribute("hidden", "");
+  });
+});

priv/static/images/logo.svg

@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 71 48" fill="currentColor" aria-hidden="true">
+  <path
+    d="m26.371 33.477-.552-.1c-3.92-.729-6.397-3.1-7.57-6.829-.733-2.324.597-4.035 3.035-4.148 1.995-.092 3.362 1.055 4.57 2.39 1.557 1.72 2.984 3.558 4.514 5.305 2.202 2.515 4.797 4.134 8.347 3.634 3.183-.448 5.958-1.725 8.371-3.828.363-.316.761-.592 1.144-.886l-.241-.284c-2.027.63-4.093.841-6.205.735-3.195-.16-6.24-.828-8.964-2.582-2.486-1.601-4.319-3.746-5.19-6.611-.704-2.315.736-3.934 3.135-3.6.948.133 1.746.56 2.463 1.165.583.493 1.143 1.015 1.738 1.493 2.8 2.25 6.712 2.375 10.265-.068-5.842-.026-9.817-3.24-13.308-7.313-1.366-1.594-2.7-3.216-4.095-4.785-2.698-3.036-5.692-5.71-9.79-6.623C12.8-.623 7.745.14 2.893 2.361 1.926 2.804.997 3.319 0 4.149c.494 0 .763.006 1.032 0 2.446-.064 4.28 1.023 5.602 3.024.962 1.457 1.415 3.104 1.761 4.798.513 2.515.247 5.078.544 7.605.761 6.494 4.08 11.026 10.26 13.346 2.267.852 4.591 1.135 7.172.555ZM10.751 3.852c-.976.246-1.756-.148-2.56-.962 1.377-.343 2.592-.476 3.897-.528-.107.848-.607 1.306-1.336 1.49Zm32.002 37.924c-.085-.626-.62-.901-1.04-1.228-1.857-1.446-4.03-1.958-6.333-2-1.375-.026-2.735-.128-4.031-.61-.595-.22-1.26-.505-1.244-1.272.015-.78.693-1 1.31-1.184.505-.15 1.026-.247 1.6-.382-1.46-.936-2.886-1.065-4.787-.3-2.993 1.202-5.943 1.06-8.926-.017-1.684-.608-3.179-1.563-4.735-2.408l-.077.057c1.29 2.115 3.034 3.817 5.004 5.271 3.793 2.8 7.936 4.471 12.784 3.73A66.714 66.714 0 0 1 37 40.877c1.98-.16 3.866.398 5.753.899Zm-9.14-30.345c-.105-.076-.206-.266-.42-.069 1.745 2.36 3.985 4.098 6.683 5.193 4.354 1.767 8.773 2.07 13.293.51 3.51-1.21 6.033-.028 7.343 3.38.19-3.955-2.137-6.837-5.843-7.401-2.084-.318-4.01.373-5.962.94-5.434 1.575-10.485.798-15.094-2.553Zm27.085 15.425c.708.059 1.416.123 2.124.185-1.6-1.405-3.55-1.517-5.523-1.404-3.003.17-5.167 1.903-7.14 3.972-1.739 1.824-3.31 3.87-5.903 4.604.043.078.054.117.066.117.35.005.699.021 1.047.005 3.768-.17 7.317-.965 10.14-3.7.89-.86 1.685-1.817 2.544-2.71.716-.746 1.584-1.159 2.645-1.07Zm-8.753-4.67c-2.812.246-5.254 1.409-7.548 2.943-1.766 1.18-3.654 1.738-5.776 1.37-.374-.066-.75-.114-1.124-.17l-.013.156c.135.07.265.151.405.207.354.14.702.308 1.07.395 4.083.971 7.992.474 11.516-1.803 2.221-1.435 4.521-1.707 7.013-1.336.252.038.503.083.756.107.234.022.479.255.795.003-2.179-1.574-4.526-2.096-7.094-1.872Zm-10.049-9.544c1.475.051 2.943-.142 4.486-1.059-.452.04-.643.04-.827.076-2.126.424-4.033-.04-5.733-1.383-.623-.493-1.257-.974-1.889-1.457-2.503-1.914-5.374-2.555-8.514-2.5.05.154.054.26.108.315 3.417 3.455 7.371 5.836 12.369 6.008Zm24.727 17.731c-2.114-2.097-4.952-2.367-7.578-.537 1.738.078 3.043.632 4.101 1.728a13 13 0 0 0 1.182 1.106c1.6 1.29 4.311 1.352 5.896.155-1.861-.726-1.861-.726-3.601-2.452Zm-21.058 16.06c-1.858-3.46-4.981-4.24-8.59-4.008a9.667 9.667 0 0 1 2.977 1.39c.84.586 1.547 1.311 2.243 2.055 1.38 1.473 3.534 2.376 4.962 2.07-.656-.412-1.238-.848-1.592-1.507Zl-.006.006-.036-.004.021.018.012.053Za.127.127 0 0 0 .015.043c.005.008.038 0 .058-.002Zl-.008.01.005.026.024.014Z"
+    fill="#FD4F00"
+  />
+</svg>

priv/static/robots.txt

@@ -0,0 +1,5 @@
+# See https://www.robotstxt.org/robotstxt.html for documentation on how to use the robots.txt file
+#
+# To ban all spiders from the entire site uncomment the next two lines:
+# User-agent: *
+# Disallow: /

test/gc_index_relay/nostr_test.exs

@@ -0,0 +1,19 @@
+defmodule GcIndexRelay.NostrTest do
+  use GcIndexRelay.DataCase
+
+  alias GcIndexRelay.Nostr
+
+  describe "events" do
+    alias GcIndexRelay.Nostr.Event
+
+    import GcIndexRelay.NostrFixtures
+
+    @invalid_attrs %{name: nil}
+  end
+
+  describe "tags" do
+    alias GcIndexRelay.Nostr.Tag
+
+    import GcIndexRelay.NostrFixtures
+  end
+end

test/gc_index_relay_web/controllers/error_html_test.exs

@@ -0,0 +1,15 @@
+defmodule GcIndexRelayWeb.ErrorHTMLTest do
+  use GcIndexRelayWeb.ConnCase, async: true
+
+  # Bring render_to_string/4 for testing custom views
+  import Phoenix.Template, only: [render_to_string: 4]
+
+  test "renders 404.html" do
+    assert render_to_string(GcIndexRelayWeb.ErrorHTML, "404", "html", []) == "Not Found"
+  end
+
+  test "renders 500.html" do
+    assert render_to_string(GcIndexRelayWeb.ErrorHTML, "500", "html", []) ==
+             "Internal Server Error"
+  end
+end

test/gc_index_relay_web/controllers/error_json_test.exs

@@ -0,0 +1,12 @@
+defmodule GcIndexRelayWeb.ErrorJSONTest do
+  use GcIndexRelayWeb.ConnCase, async: true
+
+  test "renders 404" do
+    assert GcIndexRelayWeb.ErrorJSON.render("404.json", %{}) == %{errors: %{detail: "Not Found"}}
+  end
+
+  test "renders 500" do
+    assert GcIndexRelayWeb.ErrorJSON.render("500.json", %{}) ==
+             %{errors: %{detail: "Internal Server Error"}}
+  end
+end

test/gc_index_relay_web/controllers/event_controller_test.exs

@@ -0,0 +1,100 @@
+defmodule GcIndexRelayWeb.EventControllerTest do
+  use GcIndexRelayWeb.ConnCase
+
+  import GcIndexRelay.NostrFixtures
+  alias GcIndexRelay.Nostr.Event
+
+  @create_attrs %{
+    sig: "some sig",
+    kind: 42,
+    pubkey: "some pubkey",
+    created_at: ~U[2026-01-28 03:51:00Z],
+    content: "some content"
+  }
+  @update_attrs %{
+    sig: "some updated sig",
+    kind: 43,
+    pubkey: "some updated pubkey",
+    created_at: ~U[2026-01-29 03:51:00Z],
+    content: "some updated content"
+  }
+  @invalid_attrs %{sig: nil, kind: nil, pubkey: nil, created_at: nil, content: nil}
+
+  setup %{conn: conn} do
+    {:ok, conn: put_req_header(conn, "accept", "application/json")}
+  end
+
+  describe "index" do
+    test "lists all events", %{conn: conn} do
+      conn = get(conn, ~p"/api/events")
+      assert json_response(conn, 200)["data"] == []
+    end
+  end
+
+  describe "create event" do
+    test "renders event when data is valid", %{conn: conn} do
+      conn = post(conn, ~p"/api/events", event: @create_attrs)
+      assert %{"id" => id} = json_response(conn, 201)["data"]
+
+      conn = get(conn, ~p"/api/events/#{id}")
+
+      assert %{
+               "id" => ^id,
+               "content" => "some content",
+               "created_at" => "2026-01-28T03:51:00Z",
+               "kind" => 42,
+               "pubkey" => "some pubkey",
+               "sig" => "some sig"
+             } = json_response(conn, 200)["data"]
+    end
+
+    test "renders errors when data is invalid", %{conn: conn} do
+      conn = post(conn, ~p"/api/events", event: @invalid_attrs)
+      assert json_response(conn, 422)["errors"] != %{}
+    end
+  end
+
+  describe "update event" do
+    setup [:create_event]
+
+    test "renders event when data is valid", %{conn: conn, event: %Event{id: id} = event} do
+      conn = put(conn, ~p"/api/events/#{event}", event: @update_attrs)
+      assert %{"id" => ^id} = json_response(conn, 200)["data"]
+
+      conn = get(conn, ~p"/api/events/#{id}")
+
+      assert %{
+               "id" => ^id,
+               "content" => "some updated content",
+               "created_at" => "2026-01-29T03:51:00Z",
+               "kind" => 43,
+               "pubkey" => "some updated pubkey",
+               "sig" => "some updated sig"
+             } = json_response(conn, 200)["data"]
+    end
+
+    test "renders errors when data is invalid", %{conn: conn, event: event} do
+      conn = put(conn, ~p"/api/events/#{event}", event: @invalid_attrs)
+      assert json_response(conn, 422)["errors"] != %{}
+    end
+  end
+
+  describe "delete event" do
+    setup [:create_event]
+
+    test "deletes chosen event", %{conn: conn, event: event} do
+      conn = delete(conn, ~p"/api/events/#{event}")
+      assert response(conn, 204)
+
+      assert_error_sent 404, fn ->
+        get(conn, ~p"/api/events/#{event}")
+      end
+    end
+  end
+
+  defp create_event(_) do
+    event = event_fixture()
+
+    %{event: event}
+  end
+end

test/gc_index_relay_web/controllers/page_controller_test.exs

@@ -0,0 +1,8 @@
+defmodule GcIndexRelayWeb.PageControllerTest do
+  use GcIndexRelayWeb.ConnCase
+
+  test "GET /", %{conn: conn} do
+    conn = get(conn, ~p"/")
+    assert html_response(conn, 200) =~ "Peace of mind from prototype to production"
+  end
+end

test/support/conn_case.ex

@@ -0,0 +1,38 @@
+defmodule GcIndexRelayWeb.ConnCase do
+  @moduledoc """
+  This module defines the test case to be used by
+  tests that require setting up a connection.
+
+  Such tests rely on `Phoenix.ConnTest` and also
+  import other functionality to make it easier
+  to build common data structures and query the data layer.
+
+  Finally, if the test case interacts with the database,
+  we enable the SQL sandbox, so changes done to the database
+  are reverted at the end of every test. If you are using
+  PostgreSQL, you can even run database tests asynchronously
+  by setting `use GcIndexRelayWeb.ConnCase, async: true`, although
+  this option is not recommended for other databases.
+  """
+
+  use ExUnit.CaseTemplate
+
+  using do
+    quote do
+      # The default endpoint for testing
+      @endpoint GcIndexRelayWeb.Endpoint
+
+      use GcIndexRelayWeb, :verified_routes
+
+      # Import conveniences for testing with connections
+      import Plug.Conn
+      import Phoenix.ConnTest
+      import GcIndexRelayWeb.ConnCase
+    end
+  end
+
+  setup tags do
+    GcIndexRelay.DataCase.setup_sandbox(tags)
+    {:ok, conn: Phoenix.ConnTest.build_conn()}
+  end
+end

test/support/data_case.ex

@@ -0,0 +1,58 @@
+defmodule GcIndexRelay.DataCase do
+  @moduledoc """
+  This module defines the setup for tests requiring
+  access to the application's data layer.
+
+  You may define functions here to be used as helpers in
+  your tests.
+
+  Finally, if the test case interacts with the database,
+  we enable the SQL sandbox, so changes done to the database
+  are reverted at the end of every test. If you are using
+  PostgreSQL, you can even run database tests asynchronously
+  by setting `use GcIndexRelay.DataCase, async: true`, although
+  this option is not recommended for other databases.
+  """
+
+  use ExUnit.CaseTemplate
+
+  using do
+    quote do
+      alias GcIndexRelay.Repo
+
+      import Ecto
+      import Ecto.Changeset
+      import Ecto.Query
+      import GcIndexRelay.DataCase
+    end
+  end
+
+  setup tags do
+    GcIndexRelay.DataCase.setup_sandbox(tags)
+    :ok
+  end
+
+  @doc """
+  Sets up the sandbox based on the test tags.
+  """
+  def setup_sandbox(tags) do
+    pid = Ecto.Adapters.SQL.Sandbox.start_owner!(GcIndexRelay.Repo, shared: not tags[:async])
+    on_exit(fn -> Ecto.Adapters.SQL.Sandbox.stop_owner(pid) end)
+  end
+
+  @doc """
+  A helper that transforms changeset errors into a map of messages.
+
+      assert {:error, changeset} = Accounts.create_user(%{password: "short"})
+      assert "password is too short" in errors_on(changeset).password
+      assert %{password: ["password is too short"]} = errors_on(changeset)
+
+  """
+  def errors_on(changeset) do
+    Ecto.Changeset.traverse_errors(changeset, fn {message, opts} ->
+      Regex.replace(~r"%{(\w+)}", message, fn _, key ->
+        opts |> Keyword.get(String.to_existing_atom(key), key) |> to_string()
+      end)
+    end)
+  end
+end

test/support/fixtures/nostr_fixtures.ex

@@ -0,0 +1,20 @@
+defmodule GcIndexRelay.NostrFixtures do
+  @moduledoc """
+  This module defines test helpers for creating
+  entities via the `GcIndexRelay.Nostr` context.
+  """
+
+  @doc """
+  Generate a event.
+  """
+  def event_fixture(attrs \\ %{}) do
+    {:ok, event} =
+      attrs
+      |> Enum.into(%{
+        name: "some name"
+      })
+      |> GcIndexRelay.Nostr.create_event()
+
+    event
+  end
+end

test/test_helper.exs

@@ -0,0 +1,2 @@
+ExUnit.start()
+Ecto.Adapters.SQL.Sandbox.mode(GcIndexRelay.Repo, :manual)