Spin up a full-stack preview environment in seconds, zero config
A pull request goes up. The reviewer wants to see it running, not just read the diff, so someone pings the team: can I get an environment for this? Depending on who's around, that could take an hour. It could take until tomorrow. By the time the environment exists, the reviewer has moved on to something else, and getting their attention back is its own task. What if the preview URL was already sitting in the PR before anyone had to ask?