I have considered some technical solutions, and I agree that this sub would be an excellent candidate for archiving. For now I have made a feature request at Lemmy because, let’s face it, that would solve several problems.
If they aren’t up for it, I could try and fix it some other way, but ideally it would be fixed if they would just allow for 1 more character than they do now.
That could work, but it would be terrible for discoverability. In the mean time, I put up a feature request at Lemmy. I’m not a fan of pushing my problems upstream, but in this case it would actually be the easiest solution - as far as I can see (and I have 0 experience with Rust) they only need to adjust the validation regex, because the database already allows for it. That is - as long as the ActivityPub protocol allows for it.
If they deny it, I could try something with name mapping, but you’d either end up with something that is unreadable, or something with a high collision chance. Neither option is very appealing. For now I’m just going to wait and see.