[williamdclt]

Not necessarily locally. On CI/staging/prod yeah definitely, but when I'm hacking around I'm fine with having type errors ("yeah yeah I know this is nullable, I don't care right now I just want to investigate this bug")

[nrb]

I absolutely want it locally, preferably inside my IDE where it's providing type hints, allowing navigation to type declarations, and alerting me immediately to typing issues live as I'm coding.

[williamdclt]

Of course I want the type checking locally, what we mean is that we don't want it to prevent webpack to build if the typecheck fails

[munchor]

Flow gives you all of that. The fact that the type checker is separated from the emitter does not mean you can't get any of that.