Sure, GitLab is awesome.

But have you considered these open source alternatives?

They are free, self-hostable and community-driven.

Check by yourself: Gitea , Forgejo .

So is Gitea

Комплексный сервис разработки программного обеспечения с git-хостингом
★ 57.5K Git Software development License: MIT
Цель данного проекта - создать самый простой, быстрый и безболезненный способ настройки самостоятельно размещаемого Git-сервиса.

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So is Forgejo

Software forge
★ 5.4K Git License: GPL-3.0
Forgejo is a self-hosted lightweight software forge. Easy to install and low maintenance, it just does the job.

Read more about Forgejo