I mean.. you can still use your git repos.
Need to do a launch? Build it and push it.
Need to share a change with someone so they can review?, `git diff` and send a patch via email. Want to use a server? Spin up a server, add users and keys and push up to it.
Gitlab, GitHub and these hosted solutions haven't always existed. They're convenient, but not a OMGWTF moment... unless of course you don't have backups.