040000 tree 69b147ba038ef7554f1281f82104fa5adb8f7ea1	boringssl
040000 tree f76d5fccfd0a4d2e554fc405c0eb85c56de7641e	mbedtls
160000 commit 049485ff557178f646d573eca3bd647f543b760b	nanopb
040000 tree e1310f305cb5a036d857d987770460d2dc7cb403	picotls
160000 commit af853ea6e963fae5ca8be486793dadfef83f4d28	pigweed