There’s scanners at 100+ pages per minute and you can fit a (half) dozen maxed out QRs per page.

I’m okay with it taking a minute or two to install software on a high security system, eg, the root cryptography for our military radios.

…maybe I should get into the business of “paper drives”.

Your air gapped machine would be generating the QR codes not ingesting them.

Not a small number even for BBQr.

https://github.com/coinkite/BBQr

Except low-bandwidth here is a feature, not a bug.

... Plus one more QR code to quit vi(m) when it's accidentally launched.

Only power users of vim know how to :quit it.

I play it safe: Control-Z, kill %1.