Multithreaded programming language, compiler and interpreter P&L: 0 (≃ 0 EUR)
I wanted to build a programming language that handled multithreading effectively.
So I began writing an interpreter that was multithreaded.
It's written in Java and can execute threads and communicate integers with eachother.
The compiler is incomplete but it takes a high level language and compiles it down to assembly ran by the interpreter. This high level language has functions and loops and hashmaps.