Rust comes to mind. Almost all projects fetch dependencies and build the same way (cargo), with very similar looking project structures and entry point. The community has rallied around a set of libraries that's used by everyone.

I couldn't care less about formatting differences between repos. Ignoring superficial formatting difference, Ruby's community also has one package manager (bundler) and build tool (rake) with a widely followed naming convention and directory structure and community consensus set of libraries.

Both the above languages I can build a codebase I've never seen before and have it running within minutes even without README.

Go feels like the wild wild west. Everyone has their own directory structure, with different ways of fetching dependencies (modules vs dep), building (seems to have consolidated around go build vs make), with everything hand rolled or whatever NIH selection criteria they used for their libraries.