+ = done
- = TODO

- coroutines
- bring back lock{}
- thread safe arrays/maps
- C2V translator
- doom.v
- rune type, replace `ustring` with `[]rune`, fix `byte.str()`
- maps with non-string keys
- iOS/Android support
- make `-autofree` the default
- parallel parser (and maybe checker/gen?)
- `recover()` from panics