[sakuronto]

Ruby and Rust both let you have your own repository for packages, so that doesn't make much sense, and AFAICT Rust literally needs two lines of code to pull in a new package, so I can't exactly agree that it's painful.

I don't know much about Glide but if it uses Git for packages then that's pretty much centralized thanks to GitHub, too. At least the properly centralized solutions help assure you that, unless you're running a server yourself, the package is guaranteed to exist online, and even the developer can't remove it. On GitHub there's far too many things that could go wrong, and I have much less confidence that repos will continue to exist.