graft is a Rust CLI utility for easily creating self-executing GUI binary patches for any platform, with hash checking, rollback, etc. (The utility is written in Rust, and the patches it creates are themselves compiled in Rust.)

I created it to create game localization patches for old video games, but its more general than that.

This is a nice alternative to NSIS because: (a) it's easy to create patches from the command line or in CI/CD and (b) it compiles patch applications for Linux and Mac as well as Windows.