Test features on screen and merge fixed PRs
Ryan Carson uses Devin's Test App feature to record and narrate feature clicks, fix bugs, and merge PRs with a !land command.
Done with Devin
What they did
Ryan Carson gives DevinAI access to his app via the Test App feature. The agent screen-records and narrates its own clicks through the feature, identifies bugs from those tests, fixes them in the code, and prepares a PR. He then types !land to trigger the agent to review findings, apply fixes, and merge to main.
How it went
Shipping velocity and dev happiness increased drastically with the cloud VMs and gpt-5.5.
Worth knowing
This is a setup-you-run-yourself option rather than a hosted service, so budget time for installation and upkeep.
Try it yourself with Devin
Check out the pull request [PR link] for [repo], run the app, and click through the new feature [feature description] while recording the screen and narrating what you see. If you find bugs, fix them and push to the branch. Show me the recording and summary, and wait for my go-ahead before merging.
Source on X - Apr 25, 2026
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