[Improvement request] Replace Babel with TSC and allow editing of `tsconfig`

[ortonomy]

I want to use a bunch of TS things like allow declare in class properties, decorators, emitting meta data etc.

This is not currently possible in settings.

I think it's time to kill Babel and never go back?

[ortonomy]

seems I may have cloned this, sorry:

https://github.com/lukehaas/RunJS/issues/581

[lukehaas]

Replacing Babel with TSC would result in gaining some things and losing others. For example, do expressions, the pipeline operator, partial application, and others.

[ortonomy]

Not a big loss in my opinion - do is stage 1 proposal and pipeline only stage 2. At least TSC is well supported and the standard. Babel is losing support is kinda old hat. So many better options.