Login isn’t necessary, but there is no :latest tag published so you need to pull a version that exists. The current version is at codeberg.org/forgejo/forgejo:1.21.8-0 or at :1.21 if you want one that tracks patch updates (as found in the container registry).

Everything was forked and should eventually end up on F-Droid, but most things haven’t had a release yet. My understanding is that they’re hoping to do everything right immediately, including having proper new branding and all the shared functionality from Simple Thank You.

The F-Droid versions of SMT apps are perfectly safe and shouldn’t be going anywhere. (But if you have Google Play versions, I wouldn’t trust those anymore, those are owned by ZipoApps now.)

“Open source” has more or less always meant something very specific as defined by the Open Source Definition. Adding restrictions on top like no commercial use or no lawsuits turns it into “source available”.

As pointed out, the DNS issue was fixed, and the other point made about Python wheels has also been addressed; quite a good chunk of packages on PyPi have had a musl wheel added in the past 6 months or so, including numpy & scipy. I’m also not certain if the Go part is true; probably somewhere around half of the Go apps I’m running as a container are running or were built on an Alpine base.