Before your first paying user, ask these questions.

Can one user access another user’s data?

Test permissions using two real accounts. Check reads, writes, exports, uploads, and background jobs. A hidden button is not an access-control policy.

Does the price cover the work?

Measure model, infrastructure, and support costs for a typical successful task. Account for retries and heavy users. Price around a useful outcome, not an arbitrary list of features.

Launch is the beginning of evidence, not the end of development.

Can someone explain the value?

Ask a prospective customer to describe your product after seeing it for one minute. If they repeat a technical feature rather than a problem solved, simplify the positioning.

Make launch a learning loop

Define the first user cohort, the one action that signals value, and how you will collect feedback. Launch is the beginning of evidence, not the end of development.