Add pre-commit.

.gitlab-ci.yml

 ---
+include:
+  - project: shore/ci-templates
+    file: templates/pre-commit.yml
+
 build:
+  stage: build
   image: buildpack-deps:bullseye
   before_script:
     - apt-get update
-    - apt-get install -y meson golang systemd podman go-md2man bash-completion shellcheck cmake
+    - >-
+      apt-get install -y
+      bash-completion
+      cmake
+      golang
+      go-md2man
+      meson
+      podman
+      shellcheck
+      systemd
     - git clone https://github.com/containers/toolbox.git
     - cd toolbox
   script:

.pre-commit-config.yaml

+---
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks.git
+    rev: v3.4.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-executables-have-shebangs
+      - id: check-merge-conflict
+      - id: check-symlinks
+      - id: trailing-whitespace
+
+  - repo: https://github.com/Yelp/detect-secrets
+    rev: v0.14.3
+    hooks:
+      - id: detect-secrets
+
+  - repo: https://github.com/adrienverge/yamllint
+    rev: v1.25.0
+    hooks:
+      - id: yamllint
+
+  - repo: https://github.com/amperser/proselint/
+    rev: 0.10.2
+    hooks:
+      - id: proselint
+        types: [plain-text]
+        exclude: LICENSE
+
+  - repo: https://github.com/executablebooks/mdformat.git
+    rev: 0.5.3
+    hooks:
+      - id: mdformat
+
+  - repo: https://gitlab.freedesktop.org/nimrod/ci-templates.git
+    rev: fd4100029a3d54e5184408313ca602f691f359b6
+    hooks:
+      - id: ci-fairy

README.md

@@ -4,8 +4,8 @@
 
 Build [toolbox](https://github.com/containers/toolbox/).
 
-Until there's Debian packaging for it, [build it
-myself](https://git.shore.co.il/shore/toolbox-build/-/jobs/artifacts/master/raw/toolbox/builddir/src/toolbox?job=build).
+Until there's Debian packaging for it,
+[build it myself](https://git.shore.co.il/shore/toolbox-build/-/jobs/artifacts/master/raw/toolbox/builddir/src/toolbox?job=build).
 
 ## License
 
@@ -13,7 +13,7 @@ This software is licensed under the MIT license (see `LICENSE.txt`).
 
 ## Author Information
 
-Nimrod Adar, [contact me](mailto:nimrod@shore.co.il) or visit my [website](
-https://www.shore.co.il/). Patches are welcome via [`git send-email`](
-http://git-scm.com/book/en/v2/Git-Commands-Email). The repository is located
-at: <https://git.shore.co.il/nimrod/>.
+Nimrod Adar, [contact me](mailto:nimrod@shore.co.il) or visit my
+[website](https://www.shore.co.il/). Patches are welcome via
+[`git send-email`](http://git-scm.com/book/en/v2/Git-Commands-Email). The repository
+is located at: <https://git.shore.co.il/expore/>.