Poof has an online playground! It compiles to WASM and runs in your trusty neighbourhood web browser.
Poof was born out of a desire to add some quality of life features to the C programming language. Where C lacks features, C++ has ergonomics ranging from tolerable to outrageously poor. I wanted a quick and easy way to express simple transformations, and sometimes query the structure of the program itself. Thus, poof was born.