[Interest] Better hash algorithm for tarballs

[Sune Vuorela]

Hi

When going to download tarballs from the project website, helpfully a
file list called md5sums is next to all the split tarballs.

But now that we are in 2025, can't we also get a list of sha256sums or
signed tarballs or something like that?

Thanks in advance,
/Sune