Update docs

README.md

@@ -7,9 +7,23 @@ Get the provided `compose.yaml`.
 docker compose up -d
 ```
 
-# Dependencies
+# Requirements
 This program needs [regctl](https://github.com/regclient/regclient.git).
-It is shipped with container image by default.
+It is shipped with container image by default, however you'll need to install it by yourself if running script directly.
+
+Install required *Python* libraries if running directly from script:
+```bash
+python -m venv venv
+source venv/bin/activate
+pip install -r requirements.txt
+```
+
+For local development, add linting tools:
+```bash
+pip install isort black flake8 pylint
+```
+
+This program also needs read access to `/var/run/docker.sock`.
 
 # Configuration
 Configuration options are available via environment variables:

compose.yaml

@@ -7,6 +7,8 @@ services:
     restart: always
     ports:
       - 8000:8000
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock:ro
     environment:
       DOCKUP_INTERVAL: 5 # Defaults to 30
 ...