Alpine Linux containers

[lassik]

(Continuing from PR #26)

@Retropikzel I think it would be a good idea to make Alpine containers for every Scheme implementation that can do it, as is the custom among many open source projects. Alpine is notable for its small footprint, and also for using musl libc instead of glibc. In the interest of portability it is useful to keep tabs on which Schemes depend (perhaps unintentionally) on glibc features. STklos was a recent case.

Adding Alpine dockerfiles next to the current Debian dockerfiles would be an ordeal. This would be a good time to dust off the dockerfile generator.

[lassik]

Here's an example of how a popular project does it - the postgres Docker images.

Some of their tags:

17.0, 17, latest, 17.0-bookworm, 17-bookworm, bookworm⁠

17.0-bullseye, 17-bullseye, bullseye⁠

17.0-alpine3.20, 17-alpine3.20, alpine3.20, 17.0-alpine, 17-alpine, alpine⁠