That’s true. You must manually edit the up-to-6 config files to customize Homepage. It’s not difficult, but it’s not a GUI.

d.rymcg.tech is a docker-based self-hosting “platform”, and it includes Homepage and a way to configure it using your own custom homepage-config repo, but that might be a bit much to take on if you just want Homepage or if thisnkind of thing is outside of your skillset.