Live, every build, Put this live, and what each width shows.
Preview is the site as it is now, and every build of it. Every commit that changes the site builds; a finished build goes live by itself at the project's address.
Live shows the site at its address, at Full, Laptop, Tablet or Phone width; each width but Full is drawn as that device. On a phone, Live opens at Full, across the whole screen.
Builds lists every deploy: live, building or failed, newest first, with the commit each one built. Open any build to look at it, and Put this live when it is the one. A failed build comes with the reason, and the live site stays on the last build that worked.
On a project made before 25 September 2026 a build other than the live one sits behind Vercel's own sign-in, so it shows Open (a new tab) instead of the page. Projects made since have no sign-in on their builds.
.flexos/ (the Library, the chats' folders, the log) does not rebuild the site.agents/ builds that agent, not the site.blog/, which does rebuild the site: that is the point.A new project is live at your-name.flexos.site. Your own domain is set in Settings › Deployment: the Deployment article has the two records to add.