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

Rmux is a new terminal multiplexer written in Rust that provides both a tmux-compatible CLI and a typed async Rust SDK for programmatic terminal automation. The tool addresses the limitations of tmux by offering Playwright-style automation capabilities with features like stable pane IDs, structured snapshots, and locator-style waits, while maintaining native support across Linux, macOS, and Windows.