moq-dev/moq (Luke Curley)

Language: Rust + TypeScript (monorepo) Maintainer: luke-curley GitHub: moq-dev/moq (was kixelated/moq-rs → kixelated/moq) Website: moq.dev Documentation: doc.moq.dev Slack: moq-rs (C09CG9V7A2Y) — shared channel, covers both this and moq-rs

Overview

Luke Curley’s original MOQ implementation, now a monorepo containing both Rust and TypeScript packages. Implements moq-lite, a simplified subset of the IETF moq-transport spec that prioritizes simplicity and practical deployment. Also includes Hang, a media-specific protocol layer on top of moq-lite (analogous to HLS/DASH) handling codecs, containers, and catalog management.

The project describes itself as “generic for any live data, not just media” though video streaming is the primary use case.

History

• 2022-06-29: Created as kixelated/moq-rs — the original Rust MOQ implementation
• 2023-05-24: kixelated/moq-js created as a companion TypeScript library
• ~2024-10: Mike English forked the codebase to create an IETF WG-aligned version (see moq-rs and moq-js)
• 2025-06-20: kixelated/moq-js archived (“Moved to kixelated/moq. It’s much better now.“)
• Later: Renamed/transferred to moq-dev/moq as a combined Rust + TypeScript monorepo

The project diverged from strict IETF WG spec compliance when Luke pursued his own moq-lite design. It now has adapter shims for IETF MoQ WG drafts, enabling interop with IETF-aligned implementations.

Protocol

• moq-lite: Simplified transport protocol (Luke’s own spec, draft-lcurley-moq-lite-04)
• Hang: Media-specific encoding/streaming layer on top of moq-lite
• IETF adapter shims: Allow interop with IETF draft implementations (draft-14 through draft-17)

Rust Packages

• moq-lite — core transport library
• moq-relay — server/relay
• moq-token — authentication
• moq-native — QUIC helpers

TypeScript Packages (js/)

• lite — browser-compatible moq-lite transport
• hang — Hang media layer (total rewrite, not derived from kixelated/moq-js)
• watch — viewer/subscriber
• publish — publisher
• ui-core — UI components
• signals, clock, common, token — supporting packages

Public Infrastructure

• cdn.moq.dev/anon — browser pub/sub testing (QUIC + WebTransport)
• Interop docs: doc.moq.dev/concept/standard/interop.html

Interop

• Registered in interop-runner as moq-dev-rs (Rust) and moq-dev-js (JS/Hang)
• v17 interop achieved with lorenzo-miniero’s imquic (2026-04-01): “Rust publisher, JS subscriber, so that counts as two interops”
• moq-dev-rs ←> libquicr: 6/6 pass in interop runner
• moq-dev-rs ←> moxygen: 6/6 pass in interop runner

Relationship to Cloudflare moq-rs

Both projects started from Luke’s original codebase. moq-rs (cloudflare/moq-rs) forked when Luke was not going to support the IETF WG specs directly. They are now considered sibling implementations — neither is upstream of the other. The codebases are “not too too dissimilar” on the Rust side, and ideas and code can flow back and forth. See moq-rs for the Cloudflare/IETF-aligned version.

Related

• moq-rs - Cloudflare’s IETF-aligned Rust sibling (cloudflare/moq-rs)
• moq-js - IETF-aligned JS sibling (video-dev/moq-js)
• interop-status - Cross-implementation testing
• interop-endpoints - Full endpoint listing