The migra maintainer has abandoned it for greener pastures. If you’re interested in sponsoring an alternative, send me an email. My pgmigrate tool has all the groundwork necessary to make this possible but I have held off implementing this because I am not personally interested in using it.
I’m not too keen on sponsoring an alternative when the dev doesn’t particularly care about the feature — it didn’t work out last I tried something similar. But, perhaps there’s another path: Supabase.
They are in (imo) desperate need of better migration tooling, and they sponsor several open source projects that boost their over-all offering.
AFAIK, they haven’t done much in the migration space yet (aside from their alpha db branching feature), so I expect they’ll co-opt an open source solution at some point soon. May be worth pinging them? Seems it could be a win-win there.