One eternity later... It took me over a month to feel “confident” about it (or rather, I totally forgot about it and moved on to something else, as usual 😂). I'm making this public now because I had to build on top of it to fix the Primal mirroring issue on mobile.

I can't open a PR because I’m not sure where to send it; Fiatjaf has a v2 fork of Khatru somewhere, and I don’t know if or where he wants me to contribute this. But here you go:

https://github.com/aaccioly-open-source/khatru/tree/feat/khatru-blossom-updates

If you want to test it in a Khatru-based relay, just run this magic incantation:

go mod edit -replace=github.com/fiatjaf/khatru=github.com/aaccioly-open-source/khatru@5425e6f793a0f19dd0ff9dda4c86ac1e1d1aeb66

go get -u github.com/fiatjaf/khatru

The changes are very straightforward. Just add the new ext string parameter wherever the compiler complains about it:

https://github.com/aaccioly-open-source/haven/commit/6c1b9e06a3c187e5f7b32272c56a5fedbac046e8