I had a quick look at this today, but it appears it's not totally possible out of the box, and some if the internals of the gtilab cli would need to be accessed.

So setting a default host for the WM gitlab instance is not yet possible.

Having said that, integrating the command is totally possible..

I filled https://github.com/profclems/glab/issues/843 to see if I can get some guidance or agreement that the needed changes could happen.

Looks like this might be easier than first thought, just need to move 1 package out of internals in the glab code base and it seems to then be working!

https://gitlab.wikimedia.org/releng/cli/-/merge_requests/47/diffs

This MR and initiative will probably wait for movement upstream

https://github.com/profclems/glab/pull/845