diff --git a/.formatter.exs b/.formatter.exs
index 2bed17c..d2cda26 100644
--- a/.formatter.exs
+++ b/.formatter.exs
@@ -1,3 +1,4 @@
+# Used by "mix format"
 [
-  inputs: ["mix.exs", "{config,lib,test}/**/*.{ex,exs}"]
+  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
 ]
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d165ec6..daf0121 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,11 +12,11 @@ env:
 jobs:
   static_code_analysis:
     name: Static Code Analysis
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
-        elixir: [1.11]
-        otp: [23.2]
+        otp: ["26.2.1"]
+        elixir: ["1.16.1", "1.17.3"]
     steps:
       - name: Cancel Previous Runs
         uses: styfle/cancel-workflow-action@0.6.0
@@ -29,10 +29,10 @@ jobs:
           fetch-depth: 0
 
       - name: Setup
-        uses: erlef/setup-beam@v1
+        uses: erlef/setup-beam@v1.18.2
         with:
+          otp-version: ${{matrix.otp}}
           elixir-version: ${{ matrix.elixir }}
-          otp-version: ${{ matrix.otp }}
 
       - name: Install Dependencies
         if: steps.mix-cache.outputs.cache-hit != 'true'
@@ -51,12 +51,12 @@ jobs:
 
   unit_tests:
     name: Unit Tests
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
-        elixir: [1.11]
-        otp: [23.2]
+        otp: ["26.2.1"]
+        elixir: ["1.16.1", "1.17.3"]
     steps:
       - name: Cancel Previous Runs
         uses: styfle/cancel-workflow-action@0.6.0
@@ -69,10 +69,10 @@ jobs:
           fetch-depth: 0
 
       - name: Setup
-        uses: erlef/setup-beam@v1
+        uses: erlef/setup-beam@v1.18.2
         with:
+          otp-version: ${{matrix.otp}}
           elixir-version: ${{ matrix.elixir }}
-          otp-version: ${{ matrix.otp }}
 
       - name: Install Dependencies
         if: steps.mix-cache.outputs.cache-hit != 'true'
diff --git a/.gitignore b/.gitignore
index 0f8fa65..5e90d5e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,14 +1,14 @@
 # The directory Mix will write compiled artifacts to.
-/_build
+/_build/
 
 # If you run "mix test --cover", coverage assets end up here.
-/cover
+/cover/
 
 # The directory Mix downloads your dependencies sources to.
-/deps
+/deps/
 
-# Where 3rd-party dependencies like ExDoc output generated docs.
-/doc
+# Where third-party dependencies like ExDoc output generated docs.
+/doc/
 
 # Ignore .fetch files in case you like to edit your project deps locally.
 /.fetch
@@ -19,5 +19,11 @@ erl_crash.dump
 # Also ignore archive artifacts (built via "mix archive.build").
 *.ez
 
+# Ignore package tarball (built via "mix hex.build").
+oembed-*.tar
+
+# Temporary files, for example, from tests.
+/tmp/
+
 # Ignore Mix lock file
 mix.lock
diff --git a/config/config.exs b/config/config.exs
deleted file mode 100644
index 59eaa64..0000000
--- a/config/config.exs
+++ /dev/null
@@ -1,30 +0,0 @@
-# This file is responsible for configuring your application
-# and its dependencies with the aid of the Mix.Config module.
-use Mix.Config
-
-# This configuration is loaded before any dependency and is restricted
-# to this project. If another project depends on this project, this
-# file won't be loaded nor affect the parent project. For this reason,
-# if you want to provide default values for your application for
-# 3rd-party users, it should be done in your "mix.exs" file.
-
-# You can configure for your application as:
-#
-#     config :oembed, key: :value
-#
-# And access this configuration in your application as:
-#
-#     Application.get_env(:oembed, :key)
-#
-# Or configure a 3rd-party app:
-#
-#     config :logger, level: :info
-#
-
-# It is also possible to import configuration files, relative to this
-# directory. For example, you can emulate configuration per environment
-# by uncommenting the line below and defining dev.exs, test.exs and such.
-# Configuration from the imported file will override the ones defined
-# here (which is why it is important to import them last).
-#
-#     import_config "#{Mix.env}.exs"