Mosetta IDE

@mosetta/ide · An IDE made of plugins — not an IDE with plugins. npx @mosetta/ide opens the current folder in your browser.

What it does

This is the installable IDE: the daemon (@mosetta/ide-server), the built interface, and every plugin that ships with it. One command starts the daemon on a local port, serves the interface from the same port, and opens a browser tab on the folder.

npx @mosetta/ide                  # the current folder
npx @mosetta/ide ~/code/my-app    # another folder
npx @mosetta/ide --port 4300      # a port of your own (default: the first free one from 4177)
npx @mosetta/ide --no-open        # print the address instead of opening a browser
npx @mosetta/ide --verbose        # print the daemon's whole log

Or install it once: npm install -g @mosetta/ide, then mosetta-ide.

As a native app, if you would rather have an icon than a terminal tab:

npx @mosetta/ide install          # builds it on your machine and starts it
npx @mosetta/ide start
npx @mosetta/ide uninstall

That hands over to @mosetta/ide-desktop, which carries Electron; a browser run does not download it.

• Node.js 22 or newer. TypeScript checking works out of the box; git features need git on your PATH.
• Local only. The daemon listens on 127.0.0.1 and accepts pages from local addresses only.
• Your settings live in ~/.mosetta/ide/config/settings.json — the same file the desktop app uses; IDE_CONFIG_DIR points elsewhere.
• Terminals and language servers live in the daemon: reload the tab and they are still there. Stopping the command stops them.

Screenshots and demos

Try it in the browser before installing anything.

Using it from another plugin

The IDE is the plugins listed in its settings, plugins.enabled; each has a README saying what it does and how to use it from another plugin. Start with the contract, @mosetta/ide-api. Installing third-party plugins from npm is on the roadmap.