There are better editors to learn if your goal is to not learn vi.

In vi, search is not only used for searching, but also for navigation. Demoting search from an easy-to-reach single key to a difficult-to-press chorded key combination breaks one of vi’s core philosophies, natural editing flow, and will significantly reduce your enjoyment and efficiency using the editor.

I spent a decade as a full time Tcl developer and even I don’t use fossil.

You could generate a revocation key and then encrypt for multiple people using Shamir’s secret sharing.

https://en.wikipedia.org/wiki/Shamir’s_secret_sharing

Look into ssss and gfshare, the latter explicitly discusses this use of the algorithm.

https://manpages.ubuntu.com/manpages/noble/en/man7/gfshare.7.html