You now know how to write program.md: set a clear objective, define file boundaries, add the Simplicity Criterion, set VRAM as a soft constraint, and include the NEVER STOP directive.
You've seen how Karpathy and Tobi Lutke wrote theirs, and how scope that's too narrow or too wide leads to wasted runs. Next, you'll learn how to scale beyond a single agent and a single GPU with multi-agent and multi-GPU setups.