Dev who gave HashiCorp its name returns with a faster terminal multiplexer
HashiCorp cofounder Mitchell Hashimoto has launched Superlogical, a startup developing a server-side terminal multiplexer intended to make persistent programming sessions faster and more reliable. The company argues that conventional tools such as tmux, Zellij and GNU Screen duplicate terminal data and continually reconcile local and remote states, creating avoidable delays; its approach could also provide a foundation for more durable AI-agent work sessions.
Superlogical will build on libghostty, extracted from Hashimoto’s GPU-powered Ghostty terminal emulator. Under its design, the server retains a session’s state while clients send input and handle rendering and scrolling locally, allowing users to disconnect and resume work later without network round trips for every interaction. Hashimoto has disclosed few further plans, though observers speculate the technology could evolve into an AI-native layer for managing work across systems.
- Hashimoto launches Superlogical to modernise terminal multiplexing.
- Server-side sessions aim to reduce latency and preserve context.
- The approach may support future AI-agent workflows.
New here? Start with this
A terminal is a text-based way to control a computer, often used by software developers to run programs and manage files. A terminal multiplexer lets someone keep several sessions open and return to them after disconnecting, which is useful when working on a remote computer.
Mitchell Hashimoto is a software developer best known as a cofounder of HashiCorp, the company behind tools used to build and manage computer systems. He also created Ghostty, a terminal emulator, and Superlogical plans to build on part of its underlying technology.
Persistent sessions matter because developers may work across different computers or lose their connection while a task is running. The same ability to keep work available could also help software agents that carry out tasks over time, though how Superlogical might serve that purpose remains unclear.