[Jugurtha]

I wrote about this here a few times, but it works.

You don't need "airgapped", just disconnect from the internet with the kill switch or something and disconnect your laptop from the charger.

Your mission is to ship whatever you need to ship on one laptop's charge and without internet access.

You'll have time to refine later. It's great for proofs-of-concept and prototypes.

It is a self-imposed, artificial, constraint and it works.