[rthomas6]

I do this. I use Cone on Android. It works great but only as an entry method. You can't edit old entries, and it doesn't run anything over the files. It just adds entries and that's it.

I couple it with Syncthing, and Fava running on a different computer served over the local network.

I would like a phone app to run on the beancount file, but the only apps that purport to do this have <1k downloads and no ratings, so I'm not going to trust them with my financial data