How hard is it to migrate AWAY from Convex?

A migration path away from the Convex backend platform is demonstrated to address concerns about vendor lock-in. The process involves converting Convex's specific queries and mutations into more generic server functions using Tanstack Start and Zod for validation. On the front-end, this requires swapping Convex's reactive hooks for standard React Query, which necessitates manual cache invalidation to achieve similar behavior. The database layer is also migrated from Convex's managed service to a self-hosted Postgres database accessed via the Drizzle ORM, illustrating a complete move to an open-source stack.