AI's pretty good at copying features even when it's closed, or online.

Not perfect, of course. All that hype about the vibe-cloned Adobe suite is, today, hype. Next year it might not be, though that depends on questions like "will investment bubble pop?" etc.

But we are at a level where, if you can describe a feature or process well enough to test it, an LLM can develop and optimise for that feature/process. That creates opportunities for businesses to have custom just-for-them business software, which nobody copies because nobody outside the business even bothers to learn exist.