7 Reasons Your RAG Chatbot Fails in Production (And How to Fix Them in TypeScript)
Your RAG chatbot demo worked flawlessly. You loaded a few PDFs into a vector store, wired up an embedding model, and the LLM answered every ...
Aug 24, 2026
9 min
scriptc Reviewed: TypeScript Without Node, V8, or a JavaScript Engine
scriptc compiles ordinary TypeScript into tiny native binaries that can start in a few milliseconds. No Node, no V8, no JavaScript engine in...
Aug 20, 2026
13 min
FreeShow: The Open Source Presentation App Your Church Needs
Serving My Church Through Code Ever since I joined Comunidad Familia Real, I've always had a deep desire to serve. Over time, I've been able...
Jul 31, 2026
3 min
We Added Redis to Make Things Faster. It Made Things Worse.
We added Redis to fix a slow endpoint and watched response times drop. Then came stale data, invalidation problems, traffic spikes, and data...
Jul 30, 2026
7 min
Building a Zero-Trust Internal API on AWS
A DynamoDB table, a read-only Lambda, an API Gateway locked to IAM auth, and an EC2 client with no SSH key: a full zero-trust internal API o...
Jul 26, 2026
6 min
Arrays Explained from Memory to Big O (With Real Benchmarks)
A common array bug that silently deletes the wrong items, and what it reveals: how arrays actually work in memory, why insert/delete cost wh...
Jul 24, 2026
7 min
Sign in With Google in Node.js — Without Passport
Learn how to implement Google Sign-In in Node.js without Passport.js by building the complete OAuth 2.0 flow yourself. This guide covers PKC...
Jul 18, 2026
8 min
Build a URL Shortener With Click Analytics in Node.js
Build a URL shortener with real analytics — country, referrer, and browser tracking — using Node.js, Express, and SQLite. No external servic...
Jul 15, 2026
7 min
Rate Limiting Alone Won't Stop a Patient Attacker
IP-based throttling and account-based lockout solve different problems and neither substitutes for the other. Built and tested in NestJS: th...
Jul 2, 2026
6 min