open-source-silicon.dev

<https://github.com/RTimothyEdwards/open_pdks/issues/359|#359 Many reference commits for `sky130` unknown>
Issue created by <https://github.com/donn|donn>
This appears to have originated with <https://github.com/RTimothyEdwards/open_pdks/commit/7ddd413a3495a9055f03ae60b4320b14d0d6dc55|7ddd413>: A lot of the reference strings volare depends on are set to "unknown":

<https://user-images.githubusercontent.com/12652988/225683728-0d54ae20-9ef9-4abb-aab5-f259560b7474.png|image>

Ideas?
<https://github.com/RTimothyEdwards/open_pdks|RTimothyEdwards/open_pdks>