open-source-silicon.dev

Hi, I'm trying change my lib from
`.lib D:/Spice_general/open_pdks/sky130/sky130A/libs.tech/combined/sky130.lib.spice tt`
to
`.lib D:/Spice_general/open_pdks/sky130/sky130A/libs.tech/ngspice/sky130.lib.spice tt`

Does anyone know the appropriate env var for this?

Solved: Just had to edit the PDK_ROOT var in xschemrc

In the `xschemrc` the variable used is `SKYWATER_MODELS`
```  # set SKYWATER_MODELS ${PDK_ROOT}/${PDK}/libs.tech/ngspice
  set SKYWATER_MODELS ${PDK_ROOT}/${PDK}/libs.tech/combined```
I have the two lines above in my xschemrc so I can comment/uncomment to switch.
You can change this setting runtime by copy / pasting one of the above lines (uncommented) in the xschem console. and re-generating the netlist.