It's awesome people are working on this. Their progress is unfortunately is pretty hard to follow or even support.

Their low-tech process steps: https://github.com/libresilicon/process/raw/master/process_s...

Lightning talk during the 34c3: https://media.ccc.de/v/34c3-9256-lightning_talks_day_2#t=178...

For an idea of how you could build transistors in your (admittedly pretty large) basement: https://www.youtube.com/watch?v=TrmqZ0hgAXk

HN thread with article about a home-made litographically-fabricated IC: https://news.ycombinator.com/item?id=16955549