· mcp
MCP Stateless Update: Migrate Your Server to 2026-07-28
MCP's 2026-07-28 spec drops sessions and the initialize handshake. What breaks in your MCP server, and how to migrate a TypeScript server step by step.
Blog
Notes from building software
Guides and write-ups on mobile apps, web & SaaS, AI integrations, APIs, payments and shipping to production.
· postgresql
pgvector 0.8.7 Security Fix: Upgrade, Then Pick HNSW or IVFFlat
pgvector 0.8.7 fixes a high-severity IVFFlat bug. Check your version, upgrade on Docker or Supabase, and choose between HNSW and IVFFlat.
· ai
RAG with Citations on PostgreSQL and pgvector: How I Built It
How I built RAG with citations on PostgreSQL and pgvector for Pactroom: schema, project-scoped retrieval, citation prompts and the HNSW filtering trap.
· pactroom
How to Verify a Supabase JWT in Fastify with JWKS
Verify Supabase JWTs in a Fastify API with JWKS and jose, handle the legacy JWT secret, rotate keys safely, and secure Socket.IO connections too.
· flutter
StoreKit 2 Subscriptions in Flutter: Restore Purchases and Server Notifications
StoreKit 2 subscriptions in a Flutter app: server verification, App Store Server Notifications V2, restore purchases and one access record across gateways.
· flutter
Taking Over an Existing Flutter App and PHP Backend: My Playbook
How I take over a live Flutter app with a legacy PHP backend: a first-week checklist, reproducing bugs, PHP security fixes and a safe move to token auth.
· pactroom
GitHub Actions CI/CD for a Solo SaaS: Tests, SSH Deploy and Prisma Migrations
The GitHub Actions pipeline I run for Pactroom: tests, build, SSH deploy to a VPS, prisma migrate deploy and a health check, with a workflow you can adapt.
· firebase
Building a Next.js Portfolio Website with Firestore and an AI Chatbot
How I built my Next.js portfolio on Firebase: Firestore content with typed fallbacks, SEO metadata, a guarded AI chatbot and a contact form that checks errors.
· flutter
Riverpod 3 Best Practices for Production Flutter Apps (2026)
Riverpod 3 best practices for production Flutter apps: migrating from 2.x and StateProvider, structure, the generator, testing, and how it compares with Bloc.
· flutter
How to Hide API Keys in Flutter (and What to Do Instead)
You can't hide an API key inside a Flutter app. Which keys are safe to ship, how to restrict them, and how to keep real secrets behind a proxy with App Check.
· flutter
Flutter In-App Purchase Guide: StoreKit 2, Play Billing and RevenueCat
A Flutter in-app purchase guide for 2026: a subscription example, server verification on Firebase, testing, cancelling, and when RevenueCat is the better call.
· ai
WhatsApp AI Agent for Business: Cloud API, Webhooks and CRM
Build a WhatsApp AI agent on the Cloud API that updates your CRM: webhook setup, the 24-hour rule, templates, human handoff and October 2026 pricing.