How do you manage variations in prototypes?

I’m a PM, and I’ve been prototyping more and more in Lovable/V0 lately – it’s quickly becoming my default sketchpad for product ideas.

One challenge I keep running into when sharing with stakeholders: how to present different variations of the same prototype.

It feels like today’s vibecoding tools don’t yet have the equivalent of feature flags, a simple way to toggle between ideas within one prototype.

I’m curious how others approach this. Do you fork? Keep multiple versions and restore as needed? Or is there another workflow I should try?😉