I do it if I’ll be away more than just couple of days. Some of my hardware is pretty old at this point and I’m just a little paranoid about the possible fire hazard. I’m sure it would be fine to leave everything running but no real harm in shutting it down either.
https://github.com/jarnedemeulemeester/findroid
This is the repository? They have a ko-fi link in the repository meaning they accept donations to support the development. Have you tried contacting the lead developer of the project and asking if they would be interested in adding the feature you want if you sponsored it via a donation?