Product · Self-Healing
A runtime error, a silent failure, a flow that doesn't work. Differ catches it, writes the fix, and shows you the before-and-after.
Differ works from a copy of your repo. Your source is never touched.
No ticket, no triage, no one paged at 2am. Differ catches the failure, works out the fix, and applies it to your Differ-hosted copy on its own. You find out because it's already handled, not because a user emailed you.
Nothing happens in the dark. Every correction comes with a real before-and-after diff, plus a recording of the session that led there. You see exactly what changed and what the user saw when it went wrong.
Differ only changes what you've allowed. Some rails are there before you set anything: schema, auth, and secrets are off-limits by default. Everything else is yours to draw: fence off whatever should never move, and Differ works around it.
Differ works on a copy and your repo on GitHub is never touched. When something breaks, the fix lands on a divergence: a version alongside the baseline, not a change to it. Differ validates it, routes new traffic through it, and only merges it into the stem once it's confirmed working.
Faults are corrected on their own, the moment they're caught. Improvements, such as usability issues, come to you as recommendations. You are in control to approve each recommendation, with its evidence and a proposed fix.