Yeah, we integrate pretty deeply already. We do have some new flows that could potentially make the story around publishing to Netlify from GitLab cloud seamless from an authentication standpoint, would be happy to brainstorm!
The one thing I've experienced on this front that was clunky was integration between netlify and self-hosted Gitlab. If y'all could come up for a solution for that (which is prettier than "manual" deploy using webhook), I'd love both of your companies even more than I already do.
Maybe a JAMS template?