Most AI app builders let you in and make it hard to leave. SPOE is built the other way round.
You describe an app and SPOE builds it into a real Next.js, Fastify and Postgres project. That part is common now. What is rare is what happens when you want to leave.
Leaving SPOE costs nothing. Every export is the whole project: code, database, Docker files and a signed provenance manifest, with no SPOE package inside. It runs with docker compose up on any machine, and one command proves it is exactly the code you were shown.
Every decision here gets one test: does it give you more ownership or less? If it adds lock-in, it does not ship.
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