coprocessor.js VS qrxfil

I'm working on a system hand off nodejs workloads over a serial port to another machine running some host software.

My intent is to easily write Internet-connected software for old machines where a host machine is doing all of the heavy lifting. I have been messing with 68k Macintosh systems first. The code is very much a work in progress that I am actively chipping away at, and not in a usable state just yet. I write a lot of nodejs professionally but haven't used C since college so its been a fun project.

nodejs software for the "modern" machine: https://github.com/CamHenlin/coprocessor.js

C software (targeted at a 68k mac) for the "slow" machine: https://github.com/CamHenlin/retro68-coprocessorjs-test

qrxfil: file exfiltration across airgaps using QR codes.

https://github.com/OverkillGuy/qrxfil

Splits files across multiple QR codes for “sending” across air-gapped computer systems. Generates numbered PNG files to scan.

The codes contain metadata about chunk number (e.g. “007 of 078”) to enable out-of-order scanning.

It's a fun way to learn Rust, and a great trick to get terrified looks from security folks.