diff --git a/.credo.exs b/.credo.exs
index e00a72f..889ab69 100644
--- a/.credo.exs
+++ b/.credo.exs
@@ -84,12 +84,13 @@
           #
           {Credo.Check.Design.AliasUsage,
            [priority: :low, if_nested_deeper_than: 2, if_called_more_often_than: 0]},
+
           # You can also customize the exit_status of each check.
           # If you don't want TODO comments to cause `mix credo` to fail, just
           # set this value to 0 (zero).
           #
-          {Credo.Check.Design.TagTODO, [exit_status: 0]},
           {Credo.Check.Design.TagFIXME, [exit_status: 0]},
+          {Credo.Check.Design.TagTODO, [exit_status: 0]},
 
           #
           ## Readability Checks
@@ -139,6 +140,7 @@
           {Credo.Check.Refactor.RedundantWithClauseResult, []},
           {Credo.Check.Refactor.RejectReject, []},
           {Credo.Check.Refactor.UnlessWithElse, []},
+          {Credo.Check.Refactor.UtcNowTruncate, []},
           {Credo.Check.Refactor.WithClauses, []},
 
           #
diff --git a/.dialyzer_ignore.exs b/.dialyzer_ignore.exs
index 864608a..fe51488 100644
--- a/.dialyzer_ignore.exs
+++ b/.dialyzer_ignore.exs
@@ -1,3 +1 @@
-[
-  {"lib/mix/tasks/github_workflows.generate.ex", :no_return, 156}
-]
+[]
diff --git a/.github/github_workflows.ex b/.github/github_workflows.ex
index a526021..034872f 100644
--- a/.github/github_workflows.ex
+++ b/.github/github_workflows.ex
@@ -196,14 +196,14 @@ defmodule GithubWorkflows do
           uses: "actions/cache@v3",
           id: "npm-cache",
           with: [
-            path: "~/.npm",
-            key: "npm-ubuntu-latest"
+            path: "node_modules",
+            key: "${{ runner.os }}-prettier"
           ]
         ],
         [
           name: "Install Prettier",
           if: "steps.npm-cache.outputs.cache-hit != 'true'",
-          run: "npm i -g prettier"
+          run: "npm i -D prettier prettier-plugin-toml"
         ],
         [
           name: "Run Prettier",
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 20646ed..cfffc5f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -235,11 +235,11 @@ jobs:
         uses: actions/cache@v3
         id: npm-cache
         with:
-          path: ~/.npm
-          key: npm-ubuntu-latest
+          path: node_modules
+          key: ${{ runner.os }}-prettier
       - name: Install Prettier
         if: steps.npm-cache.outputs.cache-hit != 'true'
-        run: npm i -g prettier
+        run: npm i -D prettier prettier-plugin-toml
       - name: Run Prettier
         run: npx prettier -c .
   test:
diff --git a/.gitignore b/.gitignore
index bcbe47e..fd1eb5f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,6 +25,9 @@ github_workflows_generator-*.tar
 # Temporary files, for example, from tests.
 /tmp/
 
-# Dialyzer PLT files
-/priv/plts/*.plt
-/priv/plts/*.plt.hash
+# Optimum development/test artifacts
+/node_modules/
+/priv/plts/
+.DS_Store
+package.json
+package-lock.json
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..65198f2
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,17 @@
+/_build/
+/.elixir_ls/
+/.git/
+/config/
+/cover/
+/deps/
+/doc/
+/lib/
+/priv/
+/test/
+.credo.exs
+.dialyzer_ignore.exs
+.formatter.exs
+.gitattributes
+.gitignore
+.iex.exs
+.erl_crash.dump
diff --git a/.prettierrc.js b/.prettierrc.js
new file mode 100644
index 0000000..e7ece36
--- /dev/null
+++ b/.prettierrc.js
@@ -0,0 +1,7 @@
+module.exports = {
+  trailingComma: 'es5',
+  tabWidth: 2,
+  semi: false,
+  singleQuote: true,
+  plugins: ['prettier-plugin-toml'],
+}
diff --git a/.tool-versions b/.tool-versions
index 6fe0c3d..d836019 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,2 +1,3 @@
 elixir 1.17.1-otp-27
 erlang 27.0
+nodejs 20.14.0
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 21427a2..b316bbc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,8 @@
 - Dropped support for Elixir 1.11 and 1.12 (Credo requires version 1.13 at least).
 - Removed `fast_yaml` and `libyaml` from `README.md`.
 - Upgraded Elixir version to 1.17.1.
-- Fixed YAML syntax error (`Nested mappings are not allowed in compact mappings`)
+- Fixed YAML syntax error (`Nested mappings are not allowed in compact mappings`).
+- Generated Optimum infra.
 
 ## 0.1.2 (2024-06-21)
 
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..471a5fe
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+ci:
+	mix ci
diff --git a/coveralls.json b/coveralls.json
index 77dacb6..54db6e3 100644
--- a/coveralls.json
+++ b/coveralls.json
@@ -1,5 +1,6 @@
 {
   "coverage_options": {
     "minimum_coverage": 100.0
-  }
+  },
+  "skip_files": []
 }
diff --git a/mix.exs b/mix.exs
index fa7fc85..3b12366 100644
--- a/mix.exs
+++ b/mix.exs
@@ -11,9 +11,17 @@ defmodule GithubWorkflowsGenerator.MixProject do
       elixir: "~> 1.13",
       start_permanent: Mix.env() == :prod,
       aliases: aliases(),
-      deps: deps(),
+      deps: optimum_deps() ++ app_deps(),
 
-      # Code checks
+      # Hex package
+      description: "Generate GitHub Actions workflows",
+      package: package(),
+
+      # CI
+      dialyzer: [
+        plt_add_apps: [:ex_unit, :mix],
+        plt_file: {:no_warn, "priv/plts/dialyzer.plt"}
+      ],
       preferred_cli_env: [
         ci: :test,
         coveralls: :test,
@@ -23,19 +31,15 @@ defmodule GithubWorkflowsGenerator.MixProject do
         dialyzer: :test
       ],
       test_coverage: [tool: ExCoveralls],
-      dialyzer: [
-        plt_add_apps: [:ex_unit, :mix],
-        plt_file: {:no_warn, "priv/plts/dialyzer.plt"}
-      ],
 
       # Docs
       name: "GithubWorkflowsGenerator",
       source_url: @repo,
-      docs: docs(),
-
-      # Hex package
-      description: "Generate GitHub Actions workflows",
-      package: package()
+      docs: [
+        extras: ["README.md"],
+        main: "readme",
+        source_ref: "v#{@version}"
+      ]
     ]
   end
 
@@ -46,13 +50,6 @@ defmodule GithubWorkflowsGenerator.MixProject do
     ]
   end
 
-  defp docs do
-    [
-      main: "Mix.Tasks.GithubWorkflows.Generate",
-      source_ref: "v#{@version}"
-    ]
-  end
-
   defp package do
     [
       licenses: ["MIT"],
@@ -62,18 +59,27 @@ defmodule GithubWorkflowsGenerator.MixProject do
   end
 
   # Run "mix help deps" to learn about dependencies.
-  defp deps do
+  defp optimum_deps do
     [
-      {:credo, "~> 1.7", only: [:test], runtime: false},
-      {:dialyxir, "~> 1.4", only: [:test], runtime: false},
-      {:ex_doc, "~> 0.34", only: [:dev], runtime: false},
-      {:excoveralls, "~> 0.18", only: [:test], runtime: false},
-      {:mix_audit, "~> 2.1", only: [:test], runtime: false}
+      {:credo, "~> 1.7", only: :test, runtime: false},
+      {:dialyxir, "~> 1.4", only: :test, runtime: false},
+      {:doctest_formatter, "~> 0.3", only: [:dev, :test], runtime: false},
+      {:ex_doc, "~> 0.34", only: :dev, runtime: false},
+      {:excoveralls, "~> 0.18", only: :test},
+      {:mix_audit, "~> 2.1", only: :test, runtime: false}
     ]
   end
 
+  defp app_deps do
+    []
+  end
+
   defp aliases do
     [
+      setup: [
+        "deps.get",
+        "cmd npm i -D prettier prettier-plugin-toml"
+      ],
       ci: [
         "deps.unlock --check-unused",
         "deps.audit",
diff --git a/mix.lock b/mix.lock
index 818cf95..0bf27e0 100644
--- a/mix.lock
+++ b/mix.lock
@@ -2,6 +2,7 @@
   "bunt": {:hex, :bunt, "1.0.0", "081c2c665f086849e6d57900292b3a161727ab40431219529f13c4ddcf3e7a44", [:mix], [], "hexpm", "dc5f86aa08a5f6fa6b8096f0735c4e76d54ae5c9fa2c143e5a1fc7c1cd9bb6b5"},
   "credo": {:hex, :credo, "1.7.7", "771445037228f763f9b2afd612b6aa2fd8e28432a95dbbc60d8e03ce71ba4446", [:mix], [{:bunt, "~> 0.2.1 or ~> 1.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:file_system, "~> 0.2 or ~> 1.0", [hex: :file_system, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "8bc87496c9aaacdc3f90f01b7b0582467b69b4bd2441fe8aae3109d843cc2f2e"},
   "dialyxir": {:hex, :dialyxir, "1.4.3", "edd0124f358f0b9e95bfe53a9fcf806d615d8f838e2202a9f430d59566b6b53b", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "bf2cfb75cd5c5006bec30141b131663299c661a864ec7fbbc72dfa557487a986"},
+  "doctest_formatter": {:hex, :doctest_formatter, "0.3.0", "19da9fd0d9d1e895f86d7508f1962d8a16393277f73aba1066dddb3d2adcdfc8", [:mix], [], "hexpm", "485f4dab4fc65ecf18aa342d285b393db16814d828caa671c42f9f781b68cf5a"},
   "earmark_parser": {:hex, :earmark_parser, "1.4.39", "424642f8335b05bb9eb611aa1564c148a8ee35c9c8a8bba6e129d51a3e3c6769", [:mix], [], "hexpm", "06553a88d1f1846da9ef066b87b57c6f605552cfbe40d20bd8d59cc6bde41944"},
   "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
   "ex_doc": {:hex, :ex_doc, "0.34.1", "9751a0419bc15bc7580c73fde506b17b07f6402a1e5243be9e0f05a68c723368", [:mix], [{:earmark_parser, "~> 1.4.39", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.0", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14 or ~> 1.0", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1 or ~> 1.0", [hex: :makeup_erlang, repo: "hexpm", optional: false]}, {:makeup_html, ">= 0.1.0", [hex: :makeup_html, repo: "hexpm", optional: true]}], "hexpm", "d441f1a86a235f59088978eff870de2e815e290e44a8bd976fe5d64470a4c9d2"},