Related to the gist shared above, Following is a similar Liana Simple-Inheritance Taproot setup. Same secrets, same pubkeys, same Miniscript within the descriptor, but that's where the similarities end: note: I have yet to fully understand the taproot script-path debugger session... this is a learning-in-progress exercise after all. Will get to it.

Gist

Bitcoin Core Watch-Only Liana Simple-Inheritance TR

Bitcoin Core Watch-Only Liana Simple-Inheritance TR - bitcoinrpc_liana_simple_inheritance_p2tr.md