What is OOTB?
The server supports CORS everywhere, so it should be possible to clone repos in the browser, which is something I wanted to do in https://patch34.pages.dev, but would be happy to leave it for you on
Should be possible using either
or 
GitWorkshop.dev
Decentralized github alternative over Nostr
GitHub
GitHub - petersalomonsen/wasm-git: GIT for nodejs and the browser using https://libgit2.org compiled to WebAssembly with https://emscripten.org
GIT for nodejs and the browser using https://libgit2.org compiled to WebAssembly with https://emscripten.org - petersalomonsen/wasm-git
GitHub
GitHub - isomorphic-git/isomorphic-git: A pure JavaScript implementation of git for node and browsers!
A pure JavaScript implementation of git for node and browsers! - isomorphic-git/isomorphic-git