diff --git a/lib/gc_index_relay/nostr.ex b/lib/gc_index_relay/nostr.ex
index b5beb2c..3cea006 100644
--- a/lib/gc_index_relay/nostr.ex
+++ b/lib/gc_index_relay/nostr.ex
@@ -73,10 +73,12 @@ defmodule GcIndexRelay.Nostr do
   """
   @spec delete_event(PubEvent.t()) :: {:ok, Ecto.Schema.t()} | {:error, Ecto.Changeset.t()}
   def delete_event(event) when is_struct(event, PubEvent) do
-    with {:ok, binary_id} <- Base.decode16(event.id, case: :lower) do
-      Repo.delete(%Event{id: binary_id})
-    else
-      _ -> {:error, :not_found}
+    case Base.decode16(event.id, case: :lower) do
+      {:ok, binary_id} ->
+        Repo.delete(%Event{id: binary_id})
+
+      _ ->
+        {:error, :not_found}
     end
   end
 end
diff --git a/lib/gc_index_relay/nostr/event.ex b/lib/gc_index_relay/nostr/event.ex
index 0193451..7a590fa 100644
--- a/lib/gc_index_relay/nostr/event.ex
+++ b/lib/gc_index_relay/nostr/event.ex
@@ -36,7 +36,7 @@ defmodule GcIndexRelay.Nostr.Event do
     |> 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)
+    |> validate_number(:kind, less_than: 40_000)
     |> unique_constraint(:id, name: :events_pkey)
   end
 end
diff --git a/lib/gc_index_relay/nostr/filter.ex b/lib/gc_index_relay/nostr/filter.ex
index e64e7ed..4815f7b 100644
--- a/lib/gc_index_relay/nostr/filter.ex
+++ b/lib/gc_index_relay/nostr/filter.ex
@@ -1,4 +1,9 @@
 defmodule GcIndexRelay.Nostr.Filter do
+  @moduledoc """
+  An implementation of Nostr filters, including a struct representation and parsing and validation
+  functions.
+  """
+
   alias GcIndexRelay.Nostr.Event
   alias GcIndexRelay.Repo
   alias GcIndexRelay.Nostr.Tag
diff --git a/test/gc_index_relay/nostr/pub_event_test.exs b/test/gc_index_relay/nostr/pub_event_test.exs
index 8b10cc2..0bd18f8 100644
--- a/test/gc_index_relay/nostr/pub_event_test.exs
+++ b/test/gc_index_relay/nostr/pub_event_test.exs
@@ -65,14 +65,14 @@ defmodule GcIndexRelay.Nostr.PubEventTest do
         id: Base.decode16!(String.duplicate("ab", 32), case: :lower),
         pubkey: Base.decode16!(String.duplicate("cd", 32), case: :lower),
         created_at: ~U[2021-12-20 17:46:40Z],
-        kind: 30023,
+        kind: 30_023,
         content: "long-form content",
         sig: Base.decode16!(String.duplicate("ef", 64), case: :lower),
         tags: []
       }
 
       assert {:ok, pub_event} = PubEvent.from_db(event)
-      assert pub_event.kind == 30023
+      assert pub_event.kind == 30_023
       assert pub_event.content == "long-form content"
     end