The last app you'll ever need.

Your terminal, your agents, and your apps in one window. Build tools with AI, run them side by side, and own what you make.

macOS · open source · local-first
workspace agent + app panes
Plexi with code beside a live app pane

Build the workspace around the way you actually work.

Plexi gives your terminal, apps, and agents the same place to live. Start with the Mac app, connect AI when you want it, then install or build the tools you need.

The terminal hasn't changed.

AI changed how software gets made. The workspace stayed stuck in tabs, windows, and scattered context.

App dev should be this simple.

Build a local app with an agent, check it against the host, and install it without turning a small tool into a web service.

Workflows are grown, not built.

Your tools improve as you use them. Apps keep their state on disk, agents work in context, and permissions stay visible.

One home that stretches.

Open a project, connect AI, install an app, and keep everything side by side in one workspace.

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Start with plexi demo

follow the build

New releases, sharp notes from the build, and no drip campaign.