Learn something new every day!<p>Yeah, Cap&#x27;n Proto is very similar, FlatBuffers has the advantage in that it compiles against almost all versions of Visual Studio where Cap&#x27;n Proto unfortunately decided to use some C++14 features.<p>FWIW I think I&#x27;ve seen some ports of FlatBuffers into Rust since it&#x27;s much easier to handle due to the offsets and translation on return value. The former(matching compiler layout) was the part that I was mentioning that seems like something a bit gnarlier than rust would like.