The signal in the feed.

Decoding JWT: It's Not Encryption, It's a Signature

Every API request needs to answer: who is this, and are they allowed? Session auth answers it by having the server remember every login. JWT answers it by making the client carry its own proof — no server memory needed. What's inside a token Header and payload are just base64-encoded — readable by anyone, not encrypted. The signature is what matters: a hash of the header + payload, made with a secret key only the server knows. Change one character of the payload, the signature breaks, the server

The Internet's First Message Was 'LO'

The first message ever sent across the network that became the internet was not a grand declaration. It was two letters: "LO". Not a word anyone chose, not a slogan, just the first half of a login command that never finished because the system crashed. More than fifty years later, that accidental fragment is one of the best origin stories in computing, and it still has something to teach anyone building connected devices today. At around 10:30 in the evening on 29 October 1969, a student program

Building an E-commerce Backend: Auth, Cart, and Transactional Orders with Prisma

This is the second stage of my CodeAlpha Full Stack internship — two projects, built in a deliberate order so the patterns from the first carry forward. First was a project management tool (auth + real-time updates with Socket.io). This one is a store: products, cart, orders. Same stack — Express, Prisma, PostgreSQL, JWT — but the interesting part isn't the CRUD, it's the order-placement flow, which is the first genuinely transactional piece of logic in the whole internship. I'll walk through th

I built a free tool to scan your package.json for API deprecations

While researching API changes I noticed something — Google Maps Most developers won't know until something breaks. So I built DepRadar — paste your package.json, it checks your Currently tracks 13 real deprecations across: Google Maps (DirectionsService, DistanceMatrixService removed) OpenAI (Realtime API Beta sunset) AWS SDK v2 (maintenance mode) Microsoft Actionable Messages (retired) moment.js, request package And more Free → depradar.netlify.app What deprecations am I missing from your stack

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I came across the piece that so many AI builders are missing

I came across something I have been looking for, and if you are building anything with AI, I think it is worth a few minutes of your time. The agent captures ten useful things. The system on the other end keeps four. The other six just disappear. No error. No warning. The booking still goes through, so nobody notices until a tech shows up not knowing the gate code, or the dog, or the second issue the customer clearly mentioned. I knew I was losing information in that handoff. What I could not do

Messi and Ronaldo Are Building Tech Portfolios. Mo Salah Is Playing a Different Game

Lionel Messi and Cristiano Ronaldo are betting on AI, health tech, and startups. Mohamed Salah is taking a more traditional route beyond football.

Uber’s European Expansion Plan…

Originally published at norvik.tech An in-depth analysis of Uber's halted expansion plans in Europe, exploring implications for tech development and strategy. Uber's recent announcement to pause its expansion into five European markets is a significant pivot from their earlier ambitions to launch in seven new markets by 2026. This decision underscores the complexities and challenges associated with scaling operations across diverse regulatory environments. The European market is known for its st

OpenAI no longer recommends SWE-Bench Pro

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Fable is not a useful model

Turning a pile of documents into a searchable useable knowledge base