I'm not above going along with tech I think's misguided or bad rather than fighting it, because I know it's trending up and will look good on my résumé, but ask for me to solo-write a Javascript project and tell me delivery must be in Javascript, explicitly not in Typescript, and I'm writing that fucker in Typescript and delivering you the Javascript that tsc outputs, and I don't care if no-one ever knows I did that. It's for my own sanity.