The archive · Developer & Business Tools · Strategic decision · 2026
Superlogical: Hashimoto's new bet — a terminal multiplexer as durable session layer
HashiCorp co-founder Mitchell Hashimoto starts Superlogical: a terminal multiplexer as the first wedge toward a durable session layer for humans and agents.
Superlogical
What the business is
Superlogical is building a server-side terminal multiplexer — its first product, unreleased as of September 2026 — on libghostty, with sessions accessible from web and native macOS/iOS apps, live session sharing built in, and a stated plan to grow into a "multiplexer for all work" spanning interactive, automatic and production sessions.
Starting capital：Seed round led by Notable Capital (Glenn Solomon) with Amplify Partners; angel investors include Armon Dadgar, Patrick Collison, Tobias Lütke, Guillermo Rauch and Aaron Levie (Notable Capital blog).
How it started
Hashimoto left HashiCorp in 2023 after 11 years, spent his time building Ghostty as a passion project that reached millions of daily users, and kept asking why terminal usage keeps growing; in 2026 he founded Superlogical with Jack Pearkes, Alasdair Monk and Hector Simpson.
What happened
The company announced itself on July 29, 2026: a homepage essay described the missing "durable session around the work itself," and the first product is a terminal multiplexer with web and native macOS/iOS access plus built-in live sharing; the HN thread hit 796 points and 458 comments, with discussion questioning the scope, the need for investors, and licensing.
How it ended up
As of September 2026 Superlogical is pre-beta: it is collecting waitlist signups for the terminal multiplexer, promising open-source releases, and has not shipped a first release.
Background
Superlogical is a new developer-tooling company founded by Mitchell Hashimoto, co-creator of Vagrant, Terraform and Vault and co-founder of HashiCorp. It is building a terminal multiplexer as its first product — a server-side multiplexer with long-lived sessions, web and native macOS/iOS access, and live session sharing built in — rendered on libghostty, the library spun out of his terminal emulator Ghostty.
Hashimoto left HashiCorp in 2023 after 11 years as CEO and CTO, and says he spent the following years building Ghostty "just for the love of it." The project grew to millions of daily users; in 2025 he donated Ghostty to a non-profit so it stays a public building block. His writing on why terminal usage keeps growing led directly to Superlogical.
The company announced on July 29, 2026 with a homepage essay arguing that interactive work, CI/background work and production work live in separate tools, and that "the missing layer is a durable session around the work itself." Co-founders are Jack Pearkes (HashiCorp's first employee), Alasdair Monk and Hector Simpson. The seed round is led by Notable Capital, with Amplify Partners and angels including Armon Dadgar, Patrick Collison, Tobias Lütke, Guillermo Rauch and Aaron Levie.
The announcement hit the HN front page with 796 points and 458 comments on July 29, 2026. Commenters debated the scope, whether investors were needed, and licensing; the company is collecting beta waitlist signups and promises open-source releases, with no first release shipped as of September 2026.
What has to be true
- Hashimoto has a long record of turning developer pain into defining tools — Vagrant, Terraform, Vault — and this is his first commercial bet since leaving HashiCorp.
- The bet is architectural and contrarian: a durable session layer that unifies human and agent work, starting from the terminal rather than an AI chat surface.
- The founding team re-unites HashiCorp's first employee and design veterans from Vercel, Poolside and Heroku — a deliberate bet on craft over speed.
- The HN response (796 points, 458 comments) shows the idea landing with the exact audience — terminal-using developers and agent builders — that will decide if it becomes a standard.
What can be applied
Credibility lets a founder start narrow: ship the smallest credible slice of a huge bet, and let users adopt today what you believe becomes a foundation.
Aftermath
As of September 2, 2026 Superlogical is pre-beta. Its website collects signups for the terminal multiplexer beta and promises open-source releases along the way; no first release has shipped. The team continues upstreaming shared terminal work to libghostty, and Ghostty itself remains a non-profit project whose mission and license are unchanged. The company has not disclosed pricing, revenue or a launch date, so the outcome of the bet — whether a durable session layer becomes the default way developers and agents share work — remains open.
Sources
- Mitchell Hashimoto — Superlogical
- Backing Mitchell Hashimoto Again, 12 Years Later
- Superlogical (HN item 49098965)
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