Hi, I'm Maciej, and here is some of the open source stuff I'm working on:

• Logos is a lexer generator that uses regex token definitions to produce an abstract finite-state machine, from which it then generates optimized Rust code with a procedural macro. It's already easy to use and super fast, and I'd like to find more time to make it more robust, and faster still with things like SIMD, so that you don't have to.
• Ramhorns is a Mustache templating engine implementation which allows you to use native Rust types as data source for dynamically loaded templates. It avoids HashMap key lookup costs, and it does not lock you into having to compile your templates into the binary.

I'm also an author of a an efficient clone-on-write drop-in replacement, and an easy to use JSON implementation.