Lean formalization of extended regular expressions with lookarounds

linear-checker

Regular Language Representations in Coq [maintainers=@chdoc,@palmskog]

The source code from the third edition of Effective Java, with minor additions as necessary to make it runnable.

Randomized Property-Based Testing Plugin for Coq

Tricks you wish the Coq manual told you [maintainer=@tchajed]

Metaprogramming, verified meta-theory and implementation of Rocq in Rocq