Hi,
This seemed like it might be of intrest to someone here:
https://fossi-foundation.org/2020/06/30/skywater-pdk
It seems that is a 130nm fab, based in the USA somewhere.
It came up in the "Debian Electronics BOF" session at DebConf20 (which is going on this week, as an online event):
https://debconf20.debconf.org/talks/86-debian-electronics-bof/
The video of that session should appear within a day or so.
Cheers, Phil.