Nah, use Forgejo,

https://forgejo.org/compare-to-gitea/

Forked from Gitea when they went full for-profit

Edit: Forgot to mention, Codeberg is a non-profit hosted instance of Forgejo, so you might already be using it

+1 for Gitea.

I recently set it up on a raspberry pi that was/is sitting mostly idle, in a docker container :)

Yep, running my own instance for years now.

To be fair though Gitea is by default much lighter than alternatives... because it's also minimalist. There are but default no runners, no testing environments, etc that e.g. Gitlab provides.