Herdr GPUI

herdr is a terminal multiplexer and persistent runtime for coding agents, developed as a Rust binary. It runs a background server that keeps agent terminals and sessions available across terminal disconnections, SSH reconnections, network loss, lid closure, and machine restarts; users can reattach from another terminal and use tmux-style keyboard controls or mouse interactions to split, move, and manage panes. Each pane is marked working, blocked, or idle, and agents can control herdr through its CLI and socket API to spawn panes, prompt other agents, and wait for an agent that is blocked. It hosts existing tools such as Claude Code, Codex, Cursor, OpenCode, and Grok without wrapping or replacing them, and supports plugins for extending panes and workflows. The project provides installation scripts and package-manager installation, documents remote use and session state, and is licensed under the Apache License 2.0.

GPUI is a UI framework for Rust. It was used in an experiment to rebuild T3 Code.

Herdr Browser is a deprecated browser-automation experiment that renders a real Chromium view inside a Herdr terminal pane. It captures Chromium frames through the Chrome DevTools Protocol, encodes them as PNG images, and sends them through Herdr's pane graphics stream for display in the terminal; automation clients can drive the browser over CDP while users view or interact with the persistent session. The project is no longer maintained and directs users to Terminal Browser, which uses Electron offscreen rendering and file-backed raw RGBA frames instead of the PNG encode/decode path.

Waku is a native desktop app for working with local coding agents. Built in Rust with GPUI, it keeps projects, sessions, transcripts, and application state on the user's machine, while detecting supported agent CLIs and using each provider's native structured protocol and session continuity. Its interface supports independent project sessions, model and reasoning settings, queued or directed follow-up messages, and Git-backed task rewind with conversation-aware checkpoints. The desktop app communicates with a standalone waku-daemon over an authenticated, versioned WebSocket protocol. The daemon manages task data in SQLite, attachments, provider-native session forks, workspace files, and Git operations; a browser client uses the same generated protocol. Waku is distributed for macOS, Linux, and Windows, with no Waku account or remote service required.

gpuix-svelte is an experimental Svelte custom renderer for GPUI, Zed's GPU-accelerated UI framework, distributed through @gpuix/native. It renders ordinary Svelte components into native desktop windows without a web view, while retaining Svelte component syntax, reactive state, scoped styles, and hot reload. The project includes demos for a counter, tic-tac-toe, Hacker News, and a liquid-glass control center, plus a browser target that renders the same components into a WebGPU canvas through GPUI's WebAssembly build. Its styling layer parses supported inline styles and class rules into GPUI's layout and paint properties rather than using a browser CSS engine. Supported behavior includes flex and grid layout, logical-pixel sizing, colors, typography, scrolling, hover and active states, CSS variables, portals, anchored overlays, keyboard and focus helpers, and custom components such as Scroller. The package also provides headless testing utilities that exercise GPUI's rendering, hit testing, input, and event pipeline. The repository is work in progress and requires an unreleased Svelte custom-renderer build bundled with the package. It supports Node.js and Bun, includes prebuilt native binaries, can compile examples into standalone executables for macOS, Linux, and Windows, and is licensed under MIT.