# Lazy database open

Opening SQLite at module import time broke `npm run build` with "database is locked": Next collects page data in
parallel workers, each importing the module and running DDL at once.

The fix is a bound Proxy. Nothing opens until a property is first touched; then `DatabaseSync` is constructed,
`journal_mode = WAL` and `busy_timeout = 5000` are set, and the schema DDL runs once. The Proxy methods are bound to
the real instance — an unbound Proxy made every call fail with "TypeError: Illegal invocation".

A second trap: SQLite rows arrive as null-prototype objects, which Next refuses to serialize from a server
component to a client component. Rows are normalised on read.

Related: [[SQLite schema]], [[Running locally]].