Show HN: Rmux – A programmable terminal multiplexer with a Playwright-style SDK

Category: cli-tool

Tags: terminal-multiplexer, rust, sdk

Score: 8.3/10 (Innovation: 8, Technical: 9, Documentation: 9, Utility: 7)

Rmux is a programmable terminal multiplexer written in Rust that offers a tmux-compatible CLI, a typed SDK, and a Ratatui widget, designed for both human and agentic workflows. Its standout innovation is the combination of persistent sessions, structured snapshots, and cross-platform local IPC (including Windows named pipes) without requiring WSL, making it uniquely suited for orchestrating long-lived agents and headless automation. The project is technically impressive with a well-architected daemon, SDK, and widget ecosystem, and comes with excellent documentation, demos, and platform support.

Target audience: backend devs, devops, data engineers

Repository: https://github.com/helvesec/rmux · Rust · Apache-2.0 · 93 stars

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