# Code Crux / Crux IDE (codecrux.us)
> Ultra-performance native collaborative IDE engineered in Rust with direct WebGPU rendering, decentralized AST-CRDT real-time sync, and autonomous local @CruxAI agents.

Code Crux (also known as Crux IDE, hosted at https://codecrux.us) is an ultra-fast, local-first code editor designed for high-velocity software engineering teams. Built from the bare metal up in Rust and WebGPU, Code Crux eliminates the 200MB+ memory footprint and 40ms+ frame latency introduced by Chromium and Electron wrappers.

## Core Technical Differentiators
- **Direct WebGPU & Metal Rasterization:** Sub-15ms input-to-photon response time (measured 4.2ms physical keypress to screen render).
- **Decentralized AST-CRDT Peer Mesh:** Real-time peer-to-peer collaboration over encrypted WebRTC data channels with zero server requirement and zero syntax breakages.
- **Autonomous @CruxAI HyperTerminal:** Local PTY-backed terminal integrated with system coding agents (AntiGravity agy, Claude Code, OpenAI Codex, OpenCode) executing directly inside isolated POSIX OS namespaces.
- **Local-First & Zero Cloud Telemetry:** 100% local filesystem storage with complete air-gap readiness. Your code never leaves your workstation unless you choose to replicate with verified team peers.

## Hard Benchmarks vs Competitors
- **Input-to-Photon Latency:** 4.2ms (Crux) vs 48.6ms (VS Code / Electron) vs 12.4ms (Zed).
- **Idle Memory Footprint:** 38 MB (Crux) vs 680 MB (VS Code / Electron) vs 140 MB (Zed).
- **250,000-Line Monorepo Scroll:** 120 FPS phosphor refresh (Crux) vs 18 FPS (VS Code).
- **Cold-Start Launch Time:** 0.08s (Crux) vs 1.84s (VS Code).

## Transparent Pricing
- **Community Edition ($0/user/month):** Full editor, local PTY terminal, direct Metal/WebGPU runtime, local CRDT sync.
- **Team Alpha ($20/seat/month):** Managed WebRTC signaling relays, real-time spatial presence vectors, team workspace orchestration. (e.g., $200/month for a 10-person team).
- **Enterprise Air-Gapped ($45/seat/month or custom):** Self-hosted signaling relay, on-prem telemetry air-gap, audit log export, SSO/SAML, custom local LLM endpoints.

## Canonical Technical Documentation
- [Hardware Benchmarks](https://codecrux.us/benchmarks): Full benchmark methodology, flamegraphs, memory traces, and cold-start test data.
- [AST-CRDT Replication Protocol](https://codecrux.us/ast-crdt): Deep architecture of lock-free shared memory ring buffer and WebRTC P2P sync.
- [Pricing & Licensing](https://codecrux.us/pricing): Per-seat breakdown, team tiers, and self-hosted air-gapped specs.
- [Crux vs Zed](https://codecrux.us/vs-zed): Head-to-head comparison of WebGPU compute shaders vs GPUI, P2P mesh vs centralized server.
- [Crux vs VS Code](https://codecrux.us/vs-vscode): Rust bare-metal architecture vs Electron/Chromium garbage collection overhead.
- [Full Machine-Readable Manifest](https://codecrux.us/llms-full.txt): Comprehensive technical specifications and answers to common engineering queries.