There are folks working on SP for BDK already, you can see some of the required steps for a full impl in this tracking issue:
https://github.com/bitcoindevkit/bdk/issues/1114#issuecomment-2286966409
And checkout some early related work here:
I should submit a PR for this, but nostr:nprofile1qyxhwumn8ghj7mn0wvhxcmmvqyg8wumn8ghj7mn0wd68ytnvv9hxgqgswaehxw309ahx7um5wgh8w6twv5q3gamnwvaz7tmjv4kxz7fwv3sk6atn9e5k7qguwaehxw309aex2mrp0yhxumm5d4skuerpw3hhy7fwdaexwqpqke470rdgnxg4gjs9cw3tv0dp690wl68f5xak5smflpsksedadd7qy53trd is waiting for Josie's libsecp PR merge I believe. But can't cake wallet, silentium, seedsigner et al have implemented it.
Do we just remain patient?
Discussion
Just going to leave this here https://github.com/bitcoin/bips/pull/1687
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