1. Hashmap.h#️⃣ single header hashmap implementation for C and C++
2. Utf8.h📚 single header utf8 string functions for C and C++
4. Json.h🗄️ single header json parser for C and C++
5. Utest.h🧪 single header unit testing framework for C and C++
7. yair🦜 yair - a high-level compiler IR entirely written in Rust