I have a keypath (which is a 2-of-2 multisig) and a tweak attached to it, this tweak is responsible for the scriptpath.
The scriptpath only has a backup public key (used rarely).
Alice + Bob's public keys form the multisig, which is then tweaked. After the tweak I derive a bech32 address.
How can I construct hundreds of different bech32 addresses without having to change any underlying keys?
I want to be able to spend UTXOs across addresses in a single transaction involving just Alice and Bob's single key (basically everything like derivation paths before Taproot).