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Notes on RAG, auth, and production engineering.

• Feb 2026

  #RAG#AI#Vector DB#MCP

  Building RAG Systems That Scale

  How we improved citation accuracy by 90% and retrieval by 70% using vector DB logic, post-hoc processing, and Redis-backed MCP pagination in production.

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• Jan 2026

  #Better Auth#NextAuth#Migration#PostgreSQL

  Zero-Downtime Auth Migrations

  A step-by-step account of migrating a live production app from NextAuth to Better Auth with zero downtime and zero data loss.

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• Dec 2025

  #tRPC#Security#E2B#Sandbox

  tRPC Security & E2B Sandboxing

  Refactored tRPC infrastructure with zip-bomb protection and E2B sandboxing. Implemented Redis-backed pagination for MCP that boosted client agent accuracy by 90%.

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• Nov 2025

  #Billing#Vercel AI SDK#Recharts#SaaS

  Shipping Billing & AI Analytics in Under 3 Weeks

  Solo-led billing infrastructure and a full AI chat system with dynamic interactive charts. Built with Vercel AI SDK and Recharts for a production SaaS client.

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