Sorry, basic question, I've opened up a GDS for sky130 from OpenLane in klayout, and all of the layer names are numerical. Where do I look to see which numbers correspond to li, metal, etc?

Use

File

->`Load Layer Properties` to load

$PDK_ROOT/$PDK/libs.tech/klayout/tech/$PDK.lyp

Okay, super duper basic question -- I feel like I'm missing something, and not looking at the same thing other folks are, when they say

$PDK_ROOT

. I cloned this: https://github.com/google/skywater-pdk and ran

make

, and I got a bunch of standard cells, but I got no

.lyp

files whatsoever.

I suggest using volare to install a pre-generated open_pdk which includes the data in the skywater-pdk and many other files.

Okay, that answered a lot of my questions, thank you, this volare installed version matches what other folks have been pointing me to more closely. Thank you!