A practical lab · about 19 minutes
Interactive learning lab
Ship and own your stack · guide 4 of 10
The Replit runtime migration lab
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Migration lab · BriefingScene 1 / 4
A migration moves responsibilities, not just files
Inventory code, runtime, data, identity, secrets and traffic before choosing targets.
A migration moves responsibilities, not just files ready.
Predict
Inspect
Verify
Replit may currently hide deployment, persistence, identity or integration responsibilities. Exporting code is only the first layer. The migration is complete when every runtime dependency has an owner, verification step and rollback path.
Code export is not data export.
Auth and redirects cross system boundaries.
Cutover needs a rollback window.