An open core model is just bad. Gitlab shows advertisements for features it does not offer and if you want to integrate an already existing feature you won't be able to mainline it.

Gitlab is a capable software (albeit slow and prone to security issues especially with enterprise features) and it is what most people right now are used to and that's why we offer it, but for personal use gogs, gitea or onedev (or many other solutions I won't even try to list) are way better. I run gitea on my 2G RAM VPS next to a dozen other services. I would need double or triple the resources to run gitlab alone.