A decentralized CDN where nodes stake, cache content-addressed blobs, and earn per-MB payments over off-chain USDC channels. Built in Rust on iroh QUIC.

Status: early / pre-launch. Running toward a PoC on an L2. APIs, wire formats, and economics are still in flux — the ADRs are the source of truth for current thinking.

• decdn/decdn — core Rust monorepo. Cargo workspace with protocol, cache, gossip, node, incentive, and reputation crates, plus the Solidity contracts. Most work happens here. (Not public yet, still cooking)
• decdn/website — Next.js landing page.

• Design-first. Architecture is tracked in ADRs under decdn/adr/. Start with architecture.md, then follow the numbered ADRs for whichever subsystem interests you.
• Toolchain. Rust 2024 edition, MSRV 1.85. Tests run under cargo nextest. Contributions should pass cargo fmt, cargo clippy, and cargo deny check.
• Devcontainer recommended. The core repo ships a VS Code devcontainer with the toolchain preconfigured — see CONTRIBUTING.md in decdn/decdn.
• Anti-panic policy. Clippy denies unwrap_used, expect_used, panic, and indexing_slicing workspace-wide. New contributors trip this most often.

Open an issue on the relevant repo. No public chat or mailing list yet.

Core code is dual-licensed under MIT OR Apache-2.0.