What are the top Crystal repos?

Popular Crystal repositories on GitHub, each answered in plain English for non-coders: what it is, its tech stack, and how to run it.

crystal-lang/crystalCrystal is a compiled programming language with Ruby-like syntax that runs at native C speed — you get readabl
iv-org/invidiousA private, ad-free front end for YouTube — it fetches the same videos but strips out Google tracking, removes