alt Hacker NewsNo, in fact I do not use TS at all :).
However they did mention this in the article, and hopefully that also means they'll make the package accessible to others too:
> The watcher is a self-contained package that has allowed us to keep a clean separation of concerns between what we care to watch and why.
Building @parcel/watcher was always a huge PITA. I also hope they release this package separately because it’d be nice to have an easy to install, on any OS, file watcher that doesn’t require C++ toolchain.