config files are a bandaid Sorry I am a bit confused, are you want me to use the config files or not?

They actively prevent learning - config files are a bandaid, although pam, like selinux, fstab, crypttab are painful ones to make a mistake in but the good news is often fixing them is booting into a live cd and changing it, so make backups.

My goal is to get my life in order, not to become a half sysadmin. So I want the safest and most reliable solution to solve my problems

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Because if people work arround with a go-pro, its clear what they are doing

Thank you,

Is there some CLI/GUI implementation of this where I don’t have to write all the configs and other stuff my self and maybe make mistakes?

I am not a lawyer but from my reading the wording of the GPL/AGPL is a lot more clear and its also harder to circumvent then the EUPL

I would prefer the AGPLv3-or-later if you want a strong copyleft license

How likely is it to break the system with it?

I prefer Fedora over Ubuntu because they are more up to date and put Flatpak over Snap.

But the real reason I originally switched was that the Ubuntu installer crashed 5 times in a row and then I tried Fedora and liked it

I am not so much into programming, but what extra skill is required to add a license and make the repo public? Maybe if you have a closed source dependency and would need to replace it, then it would be a skill issue.

Are there any relevant/common reason to keep an app closed source if its NOT for profit?