A good effort, but i failed to see any use case why someone will select Lumina over TypeScript. Infact Lumina itself is written in TypeScript.

Surely the ability to compile your WASM is a pretty big benefit over TypeScript, if it’s something you need.

I'd also steer clear of any language using TypeScript for the compiler itself, even TypeScript themselves don't want to use TypeScript anymore for the compiler, don't make the same mistake yourself.