040000 tree 9a8ac481754f8f343cd00e67af211b3a7c668440	drc
040000 tree 17732f1711a79c0ac839192af1d29a84df8c98e8	models
040000 tree d4fc16ebfa32d1f647c155fde7e91dfbd7b6a485	scripts
040000 tree 5a78f068a05059298f128d25ed9280854aef5913	sky130_fd_io
040000 tree a2a483b403eb3c41d01d20836bcd8690f13c1a3b	sky130_fd_sc_hd