







Protocol Buffers (Protobuf) is a data format developed by Google as a more efficient alternative to XML.
Protocol Buffers
Protocol Buffers are language-neutral, platform-neutral extensible mechanisms for serializing structured data.
How Meshtastic Data works Protocol Buffers (protobufs)

Cap'n Proto: Introduction
Cap’n Proto is an insanely fast data interchange format and capability-based RPC system. Think JSON, except binary. Or think Protocol Buffers, except faster. In fact, in benchmarks, Cap’n Proto is INFINITY TIMES faster than Protocol Buffers.
Protobase
Managed AT Protocol PDS infrastructure for your brand. Give your users a home on the Atmosphere — we handle the heavy lifting.

ATProto Architecture
Visual summary of the AT Protocol architecture: PDS, AppView, identity, records, lexicons.

Spirallex/rust-pds
Single-binary AT Protocol PDS in Rust (macOS) + device-portable stelyph-core that runs on-device in iOS. Self-hosted Bluesky federation.
PBF Format - OpenStreetMap Wiki
PBF format ("Protocolbuffer Binary Format") is primarily intended as an alternative to the XML format. It is about half of the size of a gzipped planet and about 30% smaller than a bzipped planet. It is also about 5x faster to write than a gzipped planet and 6x faster to read than a gzipped planet. The format was designed to support future extensibility and flexibility.
Switching to Protobuf (from Avro) on Kafka | Clear Street
Clear Street is a cloud-native financial technology firm on a mission to modernize the brokerage ecosystem.

Zero-copy Protobuf and ConnectRPC for Rust
As part of my work at Anthropic, I open sourced two Rust crates that fill a gap in the RPC ecosystem: buffa, a pure-Rust Protocol Buffers…
I haven't made anything with AT Proto yet
This is the blog post I write before I actually build anything on AT Proto

What I Wish Someone Had Told Me About AT Protocol and Bluesky - Stuff Rob Wrote
I've been interested in atproto (the protocol that Bluesky, Blacksky, and many other applications - including pckt, where this blog is hosted! - run on) for abo...
