040000 tree 9a8ac481754f8f343cd00e67af211b3a7c668440	drc
040000 tree 17732f1711a79c0ac839192af1d29a84df8c98e8	models
040000 tree 18ed8efb65c2db40aff5b46f5f7eae4b73a847a9	scripts
040000 tree eb74bb12ccf01fd973985958cbe39546f85cccdb	sky130_fd_io
040000 tree a2a483b403eb3c41d01d20836bcd8690f13c1a3b	sky130_fd_sc_hd