We already have the software (git) and it is distributed by design - some people (and companies) prefer a central authority with some additional features (most

We already have the software (git) and it is distributed by design - some people (and companies) prefer a central authority with some additional features (most importantly some issue management system I guess) that is the "upstream" truth and they don't want to run this infrastructure. So we have the software part (git, sshd, gitea, gitlab, etc.), but if you want a "central" repository you need a server, ergo server administration and people like to outsource that. I expect the hosting costs of github to be tremendous and there is currently no institution that wants to do that. You could also demand to have some open search engine (instead of Google), but this seems really non-trivial to stem - and people's expectations got very high (for uptime, availability, etc.) - which is probably a good thing as it shows how far we have come.