this is really cool, i want to do something related, make a language like vala. what is the biggest difficulty in this type of transpiler in your short journey?

Even having experience with C/C++, C preprocessor and C declarations took a long time. Some time to get used to the grammar as well.

A language without preprocessor and a simple grammar saves a lot time and you can go direct for the funny parts.

with skills like this, mind to push cello forward? https://github.com/orangeduck/Cello really like it but not skillful enough to do it myself.