Hmm, it seems that the purpose of the watch flag has changed, so now the correct use is

fable --watch src --target dev src

Where --watch takes a list of paths to watch? Because with my change, I later get an error from rollup (which is trying to watch the list of things passed to --watch).

If this is the new behaviour, then that's probably OK, though I guess the following is ambiguous:

fable --watch src

😕 ❓

Yeah, I didn't think of this case 😕 I always put the source path at the beginning (fable src --watch).

I still need to document it, but --watch has become more flexible because some users needed to specify the directories to be watched. Now, besides a boolean, --watch also accepts a string or a string array.

I should update the documentation quickly. Babies and OSS are not a good combo 🍼