# Week19 I continued my work on implementing the PostgreSQL backend for Lighthouse’s database layer — [finalizing the remaining database operations](https://github.com/sigp/lighthouse/pull/8157/commits/7046bca0e3ef081fe74701d6a3bc597b29c5e1c6) and beginning integration testing using Kurtosis. ## Kurtosis Local Testnet This past week focused on bridging the new Postgres backend with a functional Kurtosis-based local test environment. The database interface is now feature-complete, and the next phase involves validating Lighthouse end-to-end with Postgres as the primary backend inside Kurtosis. However, testing has been quite challenging — Kurtosis isn’t natively designed to coordinate asynchronous databases like Postgres, so a lot of the work involves experimenting with startup sequencing and service dependencies. I’m confident there’s a configuration or script-level fix I haven’t fully uncovered yet, and I plan to make progress on that in the coming week.