That isn't offline first though: desktop software like that is generally offline only, and the user wraps their own chosen sync method (which could simply be go

That isn't offline first though: desktop software like that is generally offline only, and the user wraps their own chosen sync method (which could simply be good ol' sneaker-net or frizby-net) around that if they want/need to. Offline first is only used in the context of web applications and sometimes their Android/iOS cousins (which probably share the same backend, where both are available), once the decision had been made that a not-locally-installed and/or remote synced application is desirable where possible, so isn't being suggested (directly) as an alternative to locally installed offline programs.