Could we be heading towards a world where it's just more secure to write inhouse software again, only now with AI agents? Not closed source per se, but 'own source'?

Seems cheaper (and so far more robust) to have an agent audit downloaded code

The endgame is to generate a binary image for an entire single-purpose OS/unikernel that does exactly and only what you require of it. No source to open or close.

this