The peoplebehind Perséides.

We’re the co-founders of Perséides, an independent product company in Canada. We make Cosmo, Switchboard and Nagano.

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Jean-Daniel Tanguay and Mathieu Durocher, co-founders of Perséides, standing side by side.
Jean-Daniel Tanguay, Mathieu DurocherCo-founders

Why we started Perséides.

Working with AI agents means juggling conversations, approvals and apps. We started Perséides to put those pieces in one place.

Cosmo, in private beta, is a team workspace where agents are members. Switchboard is a CLI and a local daemon that let agents use the apps on your Mac. Nagano is a macOS app that runs coding-agent CLIs from one window.

We’re cousins and co-founders, based in Canada. We work in English and French.

How we build.

  • Start with a real need.

    We start with a problem in our own work and build a tool we want to keep using.

  • Keep people in control.

    In Nagano an approval defaults to deny. Switchboard shows a plugin’s capabilities and network access before it installs. You should be able to see what an agent is doing and decide what happens next.

  • Improve through use.

    We keep using what we ship, listen to feedback and make the next version better.

See what we’re building.

A team workspace with agents as members, a CLI for the apps on your Mac, and a desk for coding-agent CLIs.

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