Notes:
# search: prod.keys titlekek_0c
hactool -t pfs0 --pfs0dir=pfs0 ./0100000011D90000.nsp
hactool --exefsdir=exefsdir ./pfs0/69ab3424f037989d254df83040f4a02c.nca
hactool --romfsdir=romfs ./pfs0/69ab3424f037989d254df83040f4a02c.nca
# 1.1.1
hactool -t pfs0 --pfs0dir=pfs01.1.1 ./0100000011D90800.nsp
hexdump -C -s 384 ./pfs01.1.1/0100000011d90800000000000000000d.tik # title key