Shout-out to https://github.com/rustaceanrob
for implementing
https://github.com/bitcoindevkit/bdk-ffi/pull/771 in nostr:nprofile1qqsgkmgkmv63djkxmwvdlyaxx0xtsytvkyyg5fwzmp48pwd30f3jtxspzamhxue69uhhyetvv9ujuurjd9kkzmpwdejhgtcpzdmhxue69uhhqatjwpkx2urpvuhx2ue0qy88wumn8ghj7mn0wvhxcmmv9ujkwcxx
It allows to save the entire wallet state in an arbitrary format. This is one more building block to bring Compact Block Filters in Bitcoin-Safe.org