jgit

If it's about auth, then I'd say that's more about the "edges" / porcelain than the core. The claim about git is that you can re-implement the core data structures pretty easily, and they are stable While new functionality can be implemented on top of this stable base. It doesn't surprise me that it's hard to re-implement all of git, including the network protocols, but that's a different thing than the core This thread has some good info about the core, including the tree encoding issue brought up by bradfitz, but it still seems to be approximately true ... e.g. perhaps compared to hg I also remember that JGit is a very complete re-implementation of git, done by a git core dev, and used in Android infrastructure, etc. This was well over 10 years ago at this point, maybe 15 https://github.com/eclipse-jgit/jgit

I wonder if they considered or looked at using JGit? https://github.com/eclipse-jgit/jgit It provides client and server API. The latter is used by Gerrit for its server. https://www.gerritcodereview.com Not sure what the Java to WASM story is if that is a requirement for what they need.