A few purchasing links I saw before:
I flagged 1 and 2, and threw the remaining links in the second flag.
- Josh Cook's dual USB-C expansion card - #26 by Josh_Cook,
- Serial Port Expansion Card - #9 by Josh_Cook,
- Google Coral Expansion Card - #45 by Josh_Cook,
- Dual M.2 Expansion Bay Module,
- USB2 Logic Analyser - #7 by Josh_Cook,
- Input connector shim - for power switch, USB 2.0 and LEDs - #16 by Josh_Cook
You might be able to find most purchasing links by searching posts where he mentions his store, i2clabs:
https://community.frame.work/search?q=%40Josh_Cook++i2clabs
and him mentioning “stripe”:
https://community.frame.work/search?q=%40Josh_Cook++Stripe
and other people posting his store link:
https://community.frame.work/search?q=-%40Josh_Cook++i2clabs.com
At least I would think that should get most of them.