Helvesec
Helvesec builds RMUX, a terminal multiplexer engine designed for both humans and machines, enabling Playwright-style automation for terminal-native workflows.
At a Glance
- AI Developers
- DevOps Engineers
- Software Engineers
- Power Users on Windows
AI Tools by Helvesec
(1)
RMUX
Rust Terminal Multiplexer for AI
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Products & Services
A universal Rust-based terminal multiplexer that is tmux-compatible and features a typed SDK for programmatic automation (Playwright-style).
Market Position
RMUX positions itself as a faster, more programmable, and cross-platform alternative to tmux and Zellij, specifically optimized for 'machines' (AI agents) as well as human users.
Leadership
Founders
Sidney Sissaoui
Software engineer and developer based in Switzerland. Previously developed Ruby wrappers for Kraken API, ownlan (LAN tool), and was involved in Liminality (AI project). Known on GitHub as shideneyu.
Executive Team
Sidney Sissaoui
Founder / Lead Developer
Expert in Rust and Ruby. Long-time tmux user who rebuilt the multiplexer engine to solve automation frustrations.
Founding Story
Sidney Sissaoui founded Helvesec and built RMUX out of frustration with existing multiplexers like tmux, which are difficult to automate without fragile output scraping. The vision was to create a faster, 100% Rust-based engine with a first-class SDK for AI agents and developers.
Business Model
Revenue Model
Currently open-source focused with potential for enterprise support or SDK-related services.
Pricing Tiers
Apache-2.0 licensed core. Available on GitHub and crates.io.
Target Markets
- AI Developers
- DevOps Engineers
- Software Engineers
- Power Users on Windows
- AI Agent orchestration of terminal tools
- Automated integration testing for TUIs
- Headless CLI workflows with persistent sessions
- Remote SSH development with programmable panes
- Developer community on GitHub and Hacker News