CodeBerg is a public instance of Forgejo. You can run your own local instance of Forgejo.

At some point they’ll have federation working so you’ll be able to use your home instance of Forgejo to interact with other projects/instances.

ITX is fun to build, but really limits your options and expandability.

For an ITX build make sure you’ve got a CPU with integrated graphics, so you’re not wasting a slot for a GPU. You can also get an internal SATA/RAID card to expand the amount of drives you can have.

I have some alerts like that using Pushover. You can set it to treat high priority alerts like an alarm which bypasses things like do not disturb and silence etc