At some point you may hire your first developer, bring on a technical co-founder, or just need someone else to make a change while you are on holiday. The person who built the app with AI, you, has context sitting in your head that never made it into a single file anywhere, and that gap is exactly what makes a handover take weeks instead of days. None of what follows requires you to become more technical, only slightly more organised.
Write down the decisions, not just the code
Code shows what the app does, not why it does it that way. The reason you chose one payment provider over another, or why a certain feature has an odd workaround built into it, lives only in your memory unless you write it down, and a new developer will waste real, billable time rediscovering decisions you already made once, sometimes by nearly undoing them before realising why they existed.
Tell your AI: "Create a short document listing every major technical decision we made and why, in plain English, for someone new to read."
Collect every key and account in one place
A working app depends on a scattered list of accounts: hosting, domain, email sending, payments, and whatever AI tools you used to build it in the first place. If that list only exists as logins remembered across your own head and browser autofill, a handover starts with a scavenger hunt instead of a straightforward conversation about the code, and a stalled scavenger hunt is exactly where a handover quietly dies.
Tell your AI: "List every third-party service, account, and API key this app depends on to run, so I can keep one written record of where they all live." Keep that record itself somewhere other than your own inbox, a shared password manager or a locked document works, since the inbox it was sent to is often the first thing a new hire does not have access to yet.
Point them at what you already have
You do not need to write a manual from scratch. Between how the AI reviews its own changes and the backup and security basics already covered on this blog, most of what a new developer needs to know is already written down somewhere, just never gathered in one place. Collecting the links into one place is most of the job, and it costs you an afternoon instead of a bad first week for whoever comes next.
Tell your AI: "Pull together links to every setup note, README, and decision log we have written so far into one starting document for a future developer."