services going offline is a big concern for me! that's why my solution is offline first, I like the idea of the encrypted backup living in my friend's email inbox and working entirely without internet. a true hard copy.

for the time lock mechanism, how do you go about it? I'm interested in exploring using drand time lock, but that also relies on the service continuing to run (which is admittedly very likely) https://github.com/drand/tlock