MVP

• Build images for linux/amd64 and arm (whatever the Pi 4 needs)
• Merge config directories
• Update sample so daemon accepts external connections
• Consider exposing stats endpoints too
• Anything useful in the entrypoints of other implementations?
  • https://github.com/upshift-docker/nut-upsd
  • https://github.com/instantlinux/docker-tools/tree/master/images/nut-upsd

README.md

 # nut-upsd
 
+Fully-customizable `nut` instance in a container. Many images exist, but they are
+feature-limited due to how `nut`'s configuration is handled. This image aims to
+provide all `nut` options without making too many compromises.
+
+## Usage
+
+1. Create necessary configurations in `./config`; `.conf`, `.html`, and `.users`
+files are supported. **`./config` includes sample configurations.**
+1. `docker-compose up -d`
+1. If `MODE` is set to `netserver`, `nut` will be available on the container's 
+port `3493`. Confirm using `telnet`:
+    ```bash
+    $ telnet [CONTAINER IP] 3493
+    Trying [CONTAINER IP]...
+    Connected to [CONTAINER IP].
+    Escape character is '^]'.
+    
+    $ LIST UPS
+    BEGIN LIST UPS
+    UPS test "Back-UPS XS 1500 Test"
+    END LIST UPS
+    ```