Explore virtual filesystems

[oubiwann]

I've been running into file corruption issues with the encrypted DB not being able to be decrypted anymore.

We should take a look at these possibilities:

• https://github.com/zboxfs/zbox
• https://github.com/manuel-woelker/rust-vfs
• https://github.com/lostatc/acid-store

Maybe using DBs to store the encrypted blob?

• https://gitlab.com/tglman/persy

Maybe support multiple with features ...

[oubiwann]

I think this isn't really a good route, given the state of the available options.