How do I hand off an app idea to a developer?

Hand over a written, approved description of the app rather than a conversation: the problem it solves, who uses it, each requirement as a testable statement, the business rules and exceptions, the data and the systems it connects to, what's out of scope, how each requirement will be checked, and who will own the app afterward. Then agree with the developer how their questions will get answered during the build.

A good handoff means the developer can quote it, plan it and start it without a round of meetings to find out what you meant.

What should the handoff package contain?

• The problem and the goal, in plain words.
• People and roles: who uses it and what each can do.
• Numbered requirements, one testable statement each.
• Business rules and exceptions, including the odd cases your staff handle from memory.
• Data and integrations: the records it keeps and the systems it touches.
• What's out of scope for this version.
• Acceptance criteria for each requirement.
• Decisions and open questions, marked honestly.
• Ownership: who will host, support and secure it.

If the developer uses AI coding tools, a structured version of the same content helps those tools read it without misreading.

Should I ask several developers to quote?

If you can, yes, and give every one the same document. Quotes against the same specification can be compared; quotes against different conversations usually can't.

How should questions be handled during the build?

Agree on one place for questions and one person who answers or finds the answer. Record each answer where everyone can see it, so the same question isn't asked twice and the decision isn't lost.

What should I agree before the build starts?

How changes will be requested and approved, how finished work will be checked against the acceptance criteria, who owns the code and documents, and what happens after launch: hosting, support, fixes.

What are the common handoff mistakes?

Handing over a slide deck or a list of features; leaving disagreements between departments for the developer to discover; no out-of-scope list; and no agreed way to check the work. Each one tends to turn into rework or a dispute later.

Mochlion ends with this kind of handoff: an approved Build Specification and build package, acknowledged by the builder, with a channel for their questions. See what happens after you buy a credit.