Would I be able to raise any interest in getting somebody to modify the script

common/netlist_to_layout.py

in the

open_pdks

repo to work with xschem instead of Electric? There are just two routines that need to be implemented,

check_schematic_out_of_date

which checks if a schematic file is more recent than a netlist, and

generate_schematic_netlist

which calls the schematic tool in batch mode to output the netlist.