diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..6cdd156
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,12 @@
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+max_line_length = 120
+tab_width = 4
+trim_trailing_whitespace = true
+
+[{*.md, LICENSE}]
+max_line_length = 80
diff --git a/.github/.DS_Store b/.github/.DS_Store
new file mode 100644
index 0000000..dc0e639
Binary files /dev/null and b/.github/.DS_Store differ
diff --git a/.github/commitlint.config.js b/.github/commitlint.config.js
new file mode 100644
index 0000000..33790e9
--- /dev/null
+++ b/.github/commitlint.config.js
@@ -0,0 +1,34 @@
+module.exports = {
+    rules: {
+        'body-leading-blank': [2, 'always'],
+        'body-max-line-length': [2, 'always', 100],
+        'header-max-length': [2, 'always', 100],
+        'scope-case': [2, 'always', 'lower-case'],
+        'subject-case': [
+            2,
+            'never',
+            ['start-case', 'pascal-case', 'upper-case'],
+        ],
+        'subject-empty': [2, 'never'],
+        'subject-full-stop': [2, 'never', '.'],
+        'type-enum': [
+            2,
+            'always',
+            [
+                'chore',
+                'build',
+                'ci',
+                'docs',
+                'feat',
+                'feat!',
+                'fix',
+                'perf',
+                'refactor',
+                'test'
+            ],
+        ],
+        'type-case': [2, 'always', 'lower-case'],
+        'type-empty': [2, 'never'],
+        'signed-off-by': [2, 'always']
+    }
+};
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..759eb33
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,12 @@
+version: 2
+
+updates:
+    - package-ecosystem: "pip"
+      directory: "/"
+      schedule:
+          interval: "daily"
+
+    - package-ecosystem: "github-actions"
+      directory: "/.github/workflows"
+      schedule:
+          interval: "daily"
diff --git a/.github/workflows/commit-lint.yml b/.github/workflows/commit-lint.yml
new file mode 100644
index 0000000..5d0da25
--- /dev/null
+++ b/.github/workflows/commit-lint.yml
@@ -0,0 +1,23 @@
+name: Lint commit message
+
+on: [push]
+
+jobs:
+    lint:
+        runs-on: ubuntu-latest
+
+        steps:
+            - name: Clone
+              uses: actions/checkout@v4
+
+            - name: Setup node 20
+              uses: actions/setup-node@v4
+              with:
+                  node-version: "20"
+                  check-latest: true
+
+            - name: Install commitlint
+              run: npm install -g @commitlint/cli @commitlint/config-conventional
+
+            - name: Lint commit message
+              run: echo "${{ github.event.head_commit.message }}" | commitlint --config .github/commitlint.config.js
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 0000000..87cfb9b
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,10 @@
+{
+    "recommendations": [
+        "streetsidesoftware.code-spell-checker",
+        "editorconfig.editorconfig",
+        "davidanson.vscode-markdownlint",
+        "sonarsource.sonarlint-vscode",
+        "wayou.vscode-todo-highlight",
+        "redhat.vscode-yaml"
+    ]
+}
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..00189cc
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,16 @@
+{
+    "cSpell.language": "en",
+    "editor.formatOnSave": true,
+    "editor.wordWrap": "on",
+    "editor.rulers": [
+        80,
+        120
+    ],
+    "cSpell.words": [
+        "ddir",
+        "yannickkirschen"
+    ],
+    "autopep8.args": [
+        "--max-line-length=140"
+    ]
+}
\ No newline at end of file
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..abc7c35
--- /dev/null
+++ b/CODE_OF_CONDUCT.md
@@ -0,0 +1,5 @@
+# Code of Conduct
+
+Actually, the author is hungry and does not want to write a novel here. So,
+please just act like a normal human and treat others the same way as you want to
+be treated.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..85d55ce
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,24 @@
+# Contributing
+
+When contributing to this repository, please first discuss the change in the
+discussions.
+
+Please note we have a code of conduct, please follow it in all your interactions
+with the project.
+
+## Coding
+
+1. Fork the repository.
+2. Make your changes on a dedicated branch.
+3. Commit your changes according
+   to [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0).
+   Please try to only make one commit. Squash/rebase if you made a bunch of
+   fix-up-commits! Commits will be linted on every push.
+4. Open up a pull request by using the `Fix`, `Feature` or `Breaking` pull
+   request template and follow the steps described there.
+5. Merge the pull request as described in the template and make
+   a [release](#release) if required.
+
+## Release
+
+Open an issue by using the template `Release` and follow the steps in there.
diff --git a/Formulas/ddir/ddir.rb b/Formulas/ddir/ddir.rb
new file mode 100644
index 0000000..801e4c5
--- /dev/null
+++ b/Formulas/ddir/ddir.rb
@@ -0,0 +1,17 @@
+class Ddir < Formula
+    desc "Diff a directory and sync changes."
+    homepage "https://github.com/yannickkirschen/ddir"
+    url "https://github.com/yannickkirschen/ddir/archive/refs/tags/3.0.1.zip"
+    sha256 "bd7a9d052c1a726d3fd85489cee78e85bd421bad5f6f9108fb26a1da4d6e4e2b"
+    license :public_domain
+
+    depends_on "python@3.12"
+
+    def install
+        virtualenv_install_with_resources
+    end
+
+    test do
+      system "#{bin}/ddir", "--version"
+    end
+  end
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..68a49da
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,24 @@
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..a8643aa
--- /dev/null
+++ b/README.md
@@ -0,0 +1,8 @@
+# Brew formulas for ddir
+
+You can install [ddir](https://github.com/yannickkirschen/ddir) by executing:
+
+```bash
+brew tap yannickkirschen/ddir
+brew install ddir
+```