diff --git a/README.md b/README.md
index b2d369e..bfa33de 100644
--- a/README.md
+++ b/README.md
@@ -17,14 +17,27 @@ A GitHub-style activity heatmap for your [Kimai](https://www.kimai.org/) dashboa
 
 ## Installation
 
-Copy the plugin into your Kimai `var/plugins/` directory:
-
 ```bash
-cd /path/to/kimai
-git clone https://github.com/toph/kimai-heatmap.git var/plugins/KimaiHeatmapBundle
+composer config repositories.heatmap vcs https://git.toph.so/toph/kimea-plugin-heatmap
+composer require kimai-plugin/heatmap-bundle
 bin/console kimai:reload
 ```
 
+If you can't run `composer require` directly (e.g. Docker Compose, Nomad, or a custom image), add this to your `composer.json` instead:
+
+```json
+{
+    "repositories": [
+        { "type": "vcs", "url": "https://git.toph.so/toph/kimea-plugin-heatmap" }
+    ],
+    "require": {
+        "kimai-plugin/heatmap-bundle": "^1.0"
+    }
+}
+```
+
+Then rebuild your image or run `composer install` in the container.
+
 ## Development
 
 Requires [Nix](https://nixos.org/):
diff --git a/composer.json b/composer.json
index 277041d..afcf1f3 100644
--- a/composer.json
+++ b/composer.json
@@ -3,6 +3,17 @@
     "type": "kimai-plugin",
     "description": "GitHub-style activity heatmap dashboard widget for Kimai",
     "license": "MIT",
+    "keywords": ["kimai", "plugin", "heatmap", "dashboard", "time-tracking"],
+    "homepage": "https://git.toph.so/toph/kimea-plugin-heatmap",
+    "authors": [
+        {
+            "name": "Christopher Mühl",
+            "homepage": "https://toph.so"
+        }
+    ],
+    "require": {
+        "php": ">=8.2"
+    },
     "autoload": {
         "psr-4": {
             "KimaiPlugin\\KimaiHeatmapBundle\\": "src/"