Making a programming language - A simple string type!

We are replacing our compiler builtin string with one that is defined entirely within the language itself!
I am aware this is a naive "one byte per character" string which obviously doesn't handle utf8, we'll worry about that later! For now we just want to achieve parity with the old builtin types so we can simplify the core language.
x.com/kolemannix
github.com/kolemannix/k1