040000 tree 90ca872aa46be1d02a760f54a0c6b02ad0f176f0	librem13
040000 tree f7765490c1dc451f6a6573fe888503400c6b3cb4	librem_bdw
040000 tree 331616c190c1212a51d25d9275f8412112687e38	librem_cnl
040000 tree c988371d1f2f3cef8416597da30ea2f58dd82ad1	librem_skl