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Regarding data serialization, I'm currently using serde_json, however that's just because it's easy to work with for development/testing purposes though I do love the idea of using protobufs!

Node compatibility and I guess distribution overall are problems I'm extremely looking forward to tackling! :)

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> though I do love the idea of using protobufs!

or FlatBuffers!

Not sure on rust compatibility, but have you considered Cap’n Proto? https://capnproto.org/

https://github.com/capnproto/capnproto-rust

Cap'n Proto has good a good Rust library, but it's overall language support versus alternative formats is somewhat lacking, unfortunately.

That said, Cap'n Proto has a substantially better design (both in theory and implementation) than any of the alternatives IMO, so it's worth using anyway if your language supports it well. And especially so if you're using it "internally", so other language clients aren't as big of a deal.

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