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Notes

Engineering notes

Short pieces on what I learn while building: RAG, multi-tenancy, agent architecture.

  1. 3 min read

    Why I keep my embeddings inside Postgres

    On Synka Sphere I chose pgvector over a dedicated vector database. It is not a performance argument — it is about consistency and how many systems you have to back up.

    RAGPostgreSQLpgvectorArchitecture

  2. 2 min read

    A multi-tenant scope must fail closed

    Cross-tenant data leaks are never a decision — they are an oversight. Why I make my scopes return zero rows when the tenant is missing, instead of everything.

    LaravelMulti-tenancySecurity