frontpage.

Hi HN,

I built BrightGrade, a collection of grade calculators to help students:

• Final Grade Calculator – What score do you need on your final? • Weighted Grade Calculator – Category weights (homework 20%, exams 50%, etc.) • Semester Grade Calculator – Track your progress throughout the semester • GPA Calculator – Convert letter grades to GPA • College Grade Calculator – Weighted by credit hours • Assignment Grade Calculator – Calculate assignment grades and scores

Available in English, Spanish, and French. No sign-ups, totally free.

brightgrade.app

Feedback appreciated!

Show HN: Desktop‑2FA – offline open‑source TOTP authenticator for desktop

Show HN: I'm tired of my LLM bullshitting. So I fixed it

My friend built a tool to detect when to post on socials starting with this one

STL Editing with FreeCAD

Iran has now been under a national internet blackout for two full weeks

Easy Measures Doing, Simple Measures Understanding

Notebook.link: The Future of Notebook Sharing

Reverse engineering Lyft Bikes for fun (and profit?)

Work-from-office mandate? Expect top talent turnover, culture rot

Ed tech is profitable. It is also mostly useless

Why there's no European Google? And why it is a good thing

A Protocol for Package Management

Ask HN: What is your Claude Code setup? For common or spec projects

Understanding LSM trees via read, write, and space amplification

Feynman on Why He Almost Quit Physics

GraphRAG for Production Engineer Agent Memory

Show HN: Kubecfg – A CLI to manage Kubernetes contexts and namespaces

Coinbase Scaled Their Hiring to 150 Engineers per Month

Humanizer: A Claude Code skill that removes signs of AI-generated writing

Securing Agents in Production

Test

Carbon and charisma: How climate network CC35 tricked its way to the limelight

Ask HN: Anyone doing production image editing with Image models? How?

Claude Code Outage: Auth Issues

Show HN: Text-to-video model from scratch (2 brothers, 2 years, 2B params)

Show HN: BrowserOS – "Claude Cowork" in the browser (open source)

Ax Not UX

Kellblog Predictions for 2026

Ubisoft cancels six games including Prince of Persia and closes studios

How do you think about pricing and monetization for your AI product?