I get this error now:

thread 'tokio-runtime-worker' panicked at src/main.rs:35:12:
Open database failed.: DeadPool(Backend(SqliteFailure(Error { code: CannotOpen, extended_code: 14 }, Some("unable to open database file: /tmp/.mount_lume_4B2dRq4/usr/lib/lume/lume.db"))))
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Aborted (core dumped) 

 hmm, look like some permission error with database folder on linux. I will place the database in different folder in the next update

can you help create a empty lume.db file in folder /usr/lib/lume then reopen again? 

 did it, but I still get the same error. Tried putting it in both ~/.local/lib/lume/lume.db and /usr/lib/lume/lume.db