This is really amusing. Because absolutly eveyrone I know vibe-coded this thing. I think the first one was https://github.com/ralt/dns-to-port possibly mine is second (but it is very much a joke so I am not linking it) .. Vercel later did https://github.com/vercel-labs/portless and I would imagine quite a few others. Zeitgeist. Also this does probably mean its kinda useful.
And that none of us can get bothered to "Google" if a thing that does the same thing already exists. Currently vibing, on a train, a spaced repetition thing for my kid - because I needed a specific list of countries - and its faster to create the whole app rather than figure-out how to find one that would do this.
ex-insider here, actually Git is used internally as a database of sorts. And it makes sense for many other reasons not cited. You are guaranteed to be able to access the "database" in a decade or two if you need to restore stuff without having to worry about binary compatibility. For more complex data types you can actually use an Sqlite database you save in a git-note. But this is very much about a very specific use-case. And the last paragraph could have been written less salesy and more "don't try this at home, don't run with scissors kinda message".
So this is kinda the contrary to "use Postgres for everything" vibe.
Consider using Git as an actual database if you were considering using Sqlite or simple text files, or consider actually wrapping those with Git because it will give you quite a bit of extra oomph with very little effort.
I personally used git as a database on a project where we had just 200 records. With infrequent changes. Some bulk updates. That needed, for weird reasons, to be synchronized every ~12 months, yeah, and some of the nodes were air-gapped. As far as I know, more than 15 years later this is still running with basically 0 maintenance (other than git being upgraded with OS updates).
Basically "Information theoretically" compression is a measure of informational distance. So basically if text A and Text B contactenated together, compress better than text A and text C it means A and B repeat more patterns. and are closer. All we need are some distance functions .. in a way you can think about it like Levenhstein distance but that can take into account inputs with very different sizes, repetitions, changes in order big inserts etc...
And that none of us can get bothered to "Google" if a thing that does the same thing already exists. Currently vibing, on a train, a spaced repetition thing for my kid - because I needed a specific list of countries - and its faster to create the whole app rather than figure-out how to find one that would do this.