This package redistributes the Global Foundries 180nm PDK (as distributed by https://github.com/RTimothyEdwards/open_pdks) for use with Cedar.
When CedarSim reads the netlist and sees a file path for an .include or .lib file
with a jlpkg://GF180MCUPDK prefix it will reference the GF180MCUPDK model files via
the Julia package mechanism. Modify your netlist like so:
.include "jlpkg://GF180MCUPDK/model/design.ngspice"
.LIB "jlpkg://GF180MCUPDK/model/sm141064.ngspice" typical