This episode has demonstrated that diplomacy is not a credible option. So with that off the table, the only two options now are 1. A series of "1 and done" engagements every few years or months, as the regime tries to race toward a bomb, or 2. Regime change.

It's possible that #2 will happen via domestic uprising, but not at all clear whether the result of that would be a friendlier regime that is less interested in going nuclear. It could very plausibly instead be hardliners who are pissed the regime failed to put up a strong enough fight. (I think that would be what would predictably happen in the US in this scenario, for instance!)

And if it's not a domestic uprising, it's a bloody regime change war like the ones fought in the 00s, which ... didn't turn out great, if you recall!

Possibly #1 is a better outcome. But I'm very skeptical that "we'll just bomb a big country periodically" is a strategy that will never escalate into protracted war.