Show HN: Rmux – A programmable terminal multiplexer with a Playwright-style SDK
RMUX is a new terminal multiplexer designed for enhanced usability and scripting capabilities. It is tmux-compatible and offers a daemon-backed SDK for various operating systems. The current version is a public preview, and users are encouraged to report any bugs they encounter.
- ▪RMUX supports all 90 tmux-compatible commands and is currently in version 0.2.0.
- ▪It allows users to run long-lived agents over SSH while maintaining terminal access and control.
- ▪The multiplexer is built in Rust and offers features like persistent sessions and structured snapshots.
Opening excerpt (first ~120 words) tap to expand
Universal Rust multiplexer for the agentic era: detachable, scriptable, and inspectable, with a tmux-compatible CLI, daemon-backed SDK, and native Ratatui integration. English · Français · 简体中文 · 日本語 ImportantCurrent release: v0.2.0, published on 18 May 2026. All 90 tmux-compatible commands are implemented, but bugs are expected — this is a fresh public preview. Please file issues if you hit one. Why RMUX RMUX exists because I believe the tmux use case has only been partially explored. My own starting point was simple: I wanted to run long-lived agents over SSH without losing their terminals, while still being able to inspect, script, and orchestrate everything around them.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.