diff --git a/README.md b/README.md
index 99638c0..58b0eed 100644
--- a/README.md
+++ b/README.md
@@ -1,22 +1,46 @@
 # docker-comfyui
 
-Build and run ComfyUI in a container. This build targets NVIDIA by basing it
-on the CUDA PyTorch runtime image. The only extra dependencies needed are
-`git`, to clone the official ComfyUI repository, and `build-essential` for
-`gcc`, which Triton requires. The image pulls a specific, pinned ComfyUI
-version via the `COMFYUI_VERSION` build arg. The build merely shallow-clones
-the repo and installs its requirements with `pip`. Kept intentionally simple.
+Build and run ComfyUI in a container. This build targets NVIDIA by basing it on
+the CUDA PyTorch runtime image. The only extra dependencies needed are `git`, to
+clone the official ComfyUI repository, and `build-essential` for `gcc`, which
+Triton requires. The image pulls a specific, pinned ComfyUI version via the
+`COMFYUI_VERSION` build arg. The build merely shallow-clones the repo and
+installs its requirements with `pip`. Kept intentionally simple.
+
+### `.env` configuration
+
+- `IMAGE`
+  - Image name
+  - Default: `localhost/comfyui`
+- `VERSION`
+  - Image tag
+  - Default: `latest`
+- `NAME`
+  - Container name
+  - Default: `comfyui`
+- `RESTART`
+  - Restart policy
+  - Default: `unless-stopped`
+- `ENDPOINT`
+  - Host bind
+  - Default: `127.0.0.1:8188`
+- `DATA`
+  - Host directory holding all persistent data
+  - Default: `./data`
+- `GPU`
+  - CDI device
+  - Default: `nvidia.com/gpu=all`
 
 ### Quick start
 
 1. Build
 
-    ```
-    docker compose build
-    ```
+   ```
+   docker compose build
+   ```
 
 2. Run
 
-    ```
-    docker compose up -d
-    ```
+   ```
+   docker compose up -d
+   ```
diff --git a/docker-compose.yml b/docker-compose.yml
index 7349113..1d269ea 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -2,9 +2,9 @@ services:
   comfyui:
     build:
       context: .
-    image: localhost/comfyui:latest
-    restart: unless-stopped
-    container_name: comfyui
+    image: ${IMAGE:-localhost/comfyui}:${VERSION:-latest}
+    container_name: ${NAME:-comfyui}
+    restart: ${RESTART:-unless-stopped}
     ports:
       - "${ENDPOINT:-127.0.0.1:8188}:8188"
     volumes:
@@ -15,4 +15,4 @@ services:
       - ${DATA:-./data}/custom_nodes:/app/custom_nodes
       - ${DATA:-./data}/triton-cache:/root/.triton
     devices:
-      - nvidia.com/gpu=all
+      - ${GPU:-nvidia.com/gpu=all}