Everything is designed to work with HWI, but any other script or program with the same interface works too.
Which I imagine could be more than just a locally connected hardware wallet. E.g. perhaps an online multisig cosigner service.
provoostenator: per our recent discussion offline, it would be great to move these forward by highlighting the highest or first priority one to focus review on, and maybe add to the blockers tomorrow... 15382 or 16546 IIUC?
15382 would make sense for that, since it has no dependencies
But also kallewoof's #11413 (though he has a Signet PR in prioriy list)
Ok, mystery solved. I just wanted to make sure I wasn't removing something that actually did apply to 0.20. I've got it queued for a PR to master for when I finish editing all the 0.20 stuff.
instagibbs: I *will* get around to reviewing #17331 (and its parent) next week even though I hate coin selection, I promise. The next couple of days are just going to be super busy but after that, as you requested...