040000 tree 69b147ba038ef7554f1281f82104fa5adb8f7ea1	boringssl
040000 tree 9fae156178317edce995b9147c6422da8dde840c	mbedtls
160000 commit 049485ff557178f646d573eca3bd647f543b760b	nanopb
040000 tree 0c9483d41bc1b5d076d051b626357e4022b36b3e	picotls
160000 commit 446f24c4074ba733b3cc9505a3dd59b51e67d417	pigweed