Oh, I like this. A pure syntactic sugar over a language that otherwise preserves semantics is neat. Nice work on documenting what was kept/changed/removed too. Really easy to see at a glance what the project is all about.
Love that there's an online playground, LSP, and VSCode extension along with it.
Very cool! For years I've wanted to fork LiveScript and integrate it with the TS checker somehow (and remove `on/off/yes/no`, good call), sort of an F# to TypeScript's C#