It’s an interesting example to bring up next time one of those HN threads pop up about “Should I work on a side project while still working for my employer?”
>I don't understand how the answer to that question can be anything other than "fuck yes, if you want to", though.
Sure, but it probably makes sense to first have a reasonable, flexible, non-draconian invention assignment agreement in place—even if you don't think the side project will be worth anything.
Ideally, but even if not, just work on it and don't release anything about it until you quit the company (preferably with a bit of a buffer for deniability sake). I wouldn't normally advocate for this behavior, but these draconian rules shouldn't be so commonplace to begin with, and also companies shouldn't be able to control what you do in your free time.
Depending on where you live it might not even be enforceable either implicitly or explicitly due to local laws if all resources are employee owned(time, equipment, etc etc).
ownership transfer clauses. some are in the fine print, some are directly in the standard contracts i.e. Italy has these in the C.C.N.L., no way to avoid them, so you can't cash in a side project, you need first to severe your employment contract.