I am self hosting forgejo on my synology NAS. It is easier than it looks. Synology provides me access from the internet so I do not need static IP address. It took me at most 20 minutes to write (copy paste) docker compose file to make it run and another hour to import repositories from github and gitlab. Only maintenance I do is update to new version once a while which takes about 5 minutes. You can set it up to sync repositories back to code forges.

If you do not have a lot of users you can easily set it up too.