Lots of open-source projects today contain (usually in docs, code comments, or metadata) repo URLs like this:

    git://github.com/debug-js/debug.git

These URLs are broken. "git://" is a real protocol, but in 2022 GitHub stopped supporting it [1] so any URLs that purport to use the protocol for a GitHub repo are broken.

They are still quite common. 25 of the top 200 most-downloaded npm packages have such a URL in the "repository" field of their package.json file.

It would be nice if the world would fix these dead URLs (which is easily done by replacing "git://" with "https://"). They are confusing to readers who don't know about the git protocol or GitHub disabling it.

[1] https://github.blog/security/application-security/improving-git-protocol-security-github/#no-more-unauthenticated-git