1. Install the app
Download it for your Mac — Apple silicon and Intel have their own builds — or for Windows. Open the downloaded file and drag the app into Applications (Mac) or run the installer (Windows). The app updates itself from then on: it checks quietly every few hours, downloads the new version, and asks for one restart when it is ready.
Nothing else is required to start. No account, no sign-in, no hosting yet.
2. Add a folder
Press Add project and choose the folder your AI built the site in. The app looks at what is inside and says what it found: a folder of HTML, a Vite or Astro project, a Next.js app, a WordPress backup. It also notices which tool built it, from the files tools leave behind.
If you have nothing yet, New project makes a folder and, if you want, asks one of the AIs to fill it from a sentence you type.
3. See it
Press Start. The site opens in your browser at an address on your own computer. Nothing is uploaded; nobody else can open it. A project with a build step is built first; a project with its own dev script (Next.js, for one) runs through that.
You can give the local site a name — my-shop.test — with a real padlock, instead of a port number that changes every time. The computer asks for your permission once. More on running locally →
4. Connect a host and publish
Press Publish. The first time, the app asks which host this project should go to, Netlify or Vercel, and opens that host's own sign-in in your browser. You approve it there; the credential stays in the app, on your computer, and never goes into your project.
Before anything is uploaded, every file that would go up is checked for API keys, tokens, private keys and database passwords. If one is found, the upload stops, the app names the file and the line, and hands you a sentence to paste into your AI to fix it. Otherwise, a few seconds later, you have an address.
5. Change something and publish again
Edit the site with your AI, in the same folder. The project shows a badge with how many files are not online yet, and the list of them. Press Publish again: only the changed files go up, to the same site, at the same address. The link you already sent keeps working.
That is the loop. Everything else in these pages is detail around it.