I've using gowatch in my personal projects and works fine, but I'm just curious right now if is used at a corporate level/production apps
Since at least for what I'm seeing you have to specify environments variables right there which could make that you can't upload that file to a repo (Unless I guess you have a script to load them? which I see it could be posible with the run_cmd.
It is just a question in how people manage their apps in development mode.