Notice: Removing Alpine Linux variant 
From the next release this image will no longer build the **Alpine Linux** variants of the image, only **Ubuntu-based** images will be available.  Ubuntu does not support arm6, as a result this image will no longer be compatible with Raspberry Pi 1 and Raspberry Pi Zero W devices. The project will continue to build images for amd64, aarch64 and arm7 (Raspberry Pi 2 or later).

Currently the `latest` tag is an **Alpine Linux** based image, this will change to an **Ubuntu Linux** based image. For most users this change should be transparent.

Additionally `AVAHI` will be enabled by default in all images, this can be disabled with `-e ENABLE_AVAHI=0`.

If you have any custom start up scripts that use `npm` or `apk`, these will need to be updated to work with `pnpm` and `apt` respectively.