040000 tree 69b147ba038ef7554f1281f82104fa5adb8f7ea1	boringssl
040000 tree 9fae156178317edce995b9147c6422da8dde840c	mbedtls
160000 commit 049485ff557178f646d573eca3bd647f543b760b	nanopb
040000 tree e1310f305cb5a036d857d987770460d2dc7cb403	picotls
160000 commit 5c26ecfdad33664689e128e7af498cd91a8612fe	pigweed