diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..714a4fe
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,35 @@
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v6.0.0
+  hooks:
+  - id: end-of-file-fixer
+    exclude: (.txt$|README.md$)
+  - id: trailing-whitespace
+    exclude: (.txt$|README.md$)
+  - id: check-json
+  - id: check-yaml
+  - id: check-added-large-files
+    args: [--enforce-all]
+  - id: detect-private-key
+  - id: check-case-conflict
+  - id: check-symlinks
+  - id: pretty-format-json
+    args: [--autofix, --no-sort-keys, --no-ensure-ascii]
+  - id: check-merge-conflict
+  - id: no-commit-to-branch
+    args: [--branch, main]
+
+- repo: https://github.com/macisamuele/language-formatters-pre-commit-hooks
+  rev: v2.16.0
+  hooks:
+  - id: pretty-format-yaml
+    args: [--autofix]
+
+- repo: https://github.com/python-jsonschema/check-jsonschema
+  rev: 0.38.0
+  hooks:
+  - id: check-jsonschema
+    name: Check GitHub Action
+    files: ^action\.ya?ml$
+    types: [yaml]
+    args: [--builtin-schema, github-actions]
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..01ad685
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Philipp Horstenkamp
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+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 OR COPYRIGHT HOLDERS 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.