Journal
Tested guides by Waseem Anjum on AI automation, AI agents, MCP servers, NestJS, Next.js, TypeScript and self-hosting, with real code and measured results.
AI Engineering
I built the same service as a REST API and as a stateless MCP server, then measured latency, throughput, bytes and the tokens a model reads. Here is when you need MCP, when a plain API wins, and how to wrap one with the other.
AI Engineering
I loaded 100,000 OpenAI embeddings into pgvector 0.8.7 on Postgres 18 and Qdrant 1.19 and measured recall, latency, index build and filtered search, then compared Pinecone's documented limits and pricing. When you need a vector database, and when Postgres is enough.
Next.js & React
I compiled a Next.js 16.4 app with no compiler, the Babel React Compiler and the new Rust React Compiler, then counted re-renders in Chrome: 20,000 row renders dropped to 0, build cost, bundle size, lint rules and the memo() gap.
DevOps & Self-Hosting
PostgreSQL 18 generates UUIDv7 natively. I loaded 10M rows keyed by bigint, uuidv4 and uuidv7: load time, WAL, index size and insert throughput, plus Prisma and Drizzle setup and the index trap in time-range queries.
Next.js & React
A tested Better Auth 1.7 setup for Next.js 16.4 with Prisma 7 and PostgreSQL: route handler, server-action sign-in with nextCookies, proxy.ts checks, query counts per page load, the joins gotcha and Better Auth vs Clerk.
Next.js & React
Drizzle vs Prisma, benchmarked on PostgreSQL 17 across Drizzle 0.45, Drizzle 1.0 RC, Prisma 7 and Prisma 8 RC: query speed, the OFFSET trap, cold starts, install size, migrations and which to choose.
Next.js & React
React View Transitions are stable in React 19.3 and work in Next.js 16.4 with no config. Shared-element morphs, Suspense reveals, directional slides and addTransitionType, tested in Chrome, plus the back-button gap.
Next.js & React
Prisma 8 is a release candidate, yet npm install prisma already installs it. What changed from Prisma 7, what is missing, a tested side-by-side migration on PostgreSQL, two gotchas the docs skip, and whether to upgrade now.
Next.js & React
TypeScript 7 is the native Go compiler, latest on npm since July 2026. A tested upgrade guide: 5.2x faster builds on Hono, the removed tsconfig options, the typescript-eslint break, the TS 6 side-by-side setup and Next.js 16.4.
