- Provision one persistent Postgres via devenv services.postgres instead of pg-ephemeral spinning up a throwaway server per benchmark, per test suite, and a separate initdb cluster for pg-regress. The server starts with `devenv up`. - Recreate every benchmark instance, the main test database, and en57_regress as initialDatabases seeded from db/schema and db/seeds, replacing database.toml. - Connect over the service's unix socket via plain postgres:///name URLs, letting the devenv-exported PGHOST drive the connection. - Since databases now persist between runs, the benchmark runner resets each instance to its baseline before running: truncate for en57/RES scenarios, truncate-and-reseed for the seeded instance. - Point pg-regress at the shared server, dropping its temporary cluster bootstrap.