[Spittie]

You can! You just need to make the F-Droid app a System app, then it can install applications without having to keep the "unknown sources" options on.

You can use this app to do it: https://f-droid.org/repository/browse/?fdid=de.j4velin.syste...

You can also disable the "install" script and have it install stuff without any prompts like the play store, just go into the settings, scroll to the bottom and enable "Expert" and "Install using system-permission".

[eighthave]

While we love more people testing the system/priv-app and root support in FDroid, keep in mind it is very very beta and not ready for general use. We did just have the core functionality professionally audited, and have fixed the issues they found.

[digi_owl]

Everything here implies one has root.