feat(ci): add CI

.github/dependabot.yml

@@ -0,0 +1,8 @@
+version: 2
+
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+

.github/workflows/ci.yaml

@@ -0,0 +1,15 @@
+name: ci
+
+on:
+  push:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/[email protected]
+      - uses: DeterminateSystems/nix-installer-action@v11
+      - uses: DeterminateSystems/magic-nix-cache-action@main
+      - name: Build package
+        run: nix build -L
+

README.md

@@ -9,9 +9,7 @@ Display file icons in Magit!
 
 # Installation
 
-This package is not yet in any package archives.
-
-To install, fetch the source and 
+This package is not yet in any package archives. To install, you need to fetch the source.
 
 For example, with [straight.el](https://github.com/radian-software/straight.el):
 
@@ -27,5 +25,21 @@ For example, with [straight.el](https://github.com/radian-software/straight.el):
   (magit-file-icons-mode 1))
 ```
 
-# Usage
+## Nix
+
+```
+└───packages
+    ├───aarch64-darwin
+    │   ├───default: package 'emacs-magit-file-icons-v0.0.1'
+    │   └───magit-file-icons: package 'emacs-magit-file-icons-v0.0.1'
+    ├───aarch64-linux
+    │   ├───default: package 'emacs-magit-file-icons-v0.0.1'
+    │   └───magit-file-icons: package 'emacs-magit-file-icons-v0.0.1'
+    ├───x86_64-darwin
+    │   ├───default: package 'emacs-magit-file-icons-v0.0.1'
+    │   └───magit-file-icons: package 'emacs-magit-file-icons-v0.0.1'
+    └───x86_64-linux
+        ├───default: package 'emacs-magit-file-icons-v0.0.1'
+        └───magit-file-icons: package 'emacs-magit-file-icons-v0.0.1'
+```