Wilhelm Erasmus's Feed

Ask HN: Help me pass Cloudflare Turnstile on my phone?

Dear HN crowd, Turnstile is making my life absolutely miserable. Since a year ago or so, I can no longer pass any challenge on my phone. I use the Firefox ESR system package on Linux (PureOS Byzantium). Whenever Turnstile gives me a checkbox challenge, it keeps locking me out from login flows and feedback forms and whatnot. This is a huge deal for me because I can no longer log into some services that I pay for. Not only does Turnstile's checkbox appear regularly, whenever I tap on it, it j

Show HN: I built a highly customizable mental arithmetic trainer for iOS

Mental arithmetic has been a hobby of mine for a while. It's fun and good exercise for your brain.When I switched to iOS, I couldn’t find a decent app. Most had ads, sign-ups, excessive gamification, or mandatory subscriptions, and none were customizable enough. So I built my own.Athena Math lets you- Practice operations not normally found in mental math apps: modulo, square roots, percents, GCD and LCM - Tailor each session: set your time or problem limits, choose digit ranges (1–5), mix

Show HN: Barcable – We Built Agents That Automatically Load Test Your Back End

Hey HN, we’re Iyan and Datta, founders of Barcable. Barcable connects to your backend (HTTP, gRPC, GraphQL) and uses autonomous agents to generate and run load tests directly inside your CI/CD. No configs, no scripts. It scans your repo, understands your API routes, and builds real test scenarios that hit your endpoints with realistic payloads.Docs: https://www.barcable.dev/documentationWe built this out of frustration. Every team we’ve worked with ran into the same issue: re

Show HN: Send a message to my printer from anywhere in the world

I bought my first Raspberry Pi a little while ago. I grew up with my Grandpa building cool projects on the Pi. I was always interested in building my own, but never got the chance to.Around a week ago, I saw two projects on Twitter. Once was a receipt printer that could print out daily tasks, and the other was a light display that people could send their own designs to.Inspired by these, I decided to build my first Raspberry Pi project: Message Maddie. It’s a Raspberry Pi 4B connected to a gener

Show HN: TidesDB – High-performance durable, transactional embeddable database

Hey hn, I'm excited to share that TidesDB has reached it's first major after a year of development, evolving from alpha to beta to the recent major and minor releases.TidesDB is a fast, embeddable key-value storage engine library written in C, built on an LSM-tree architecture. It's designed as a foundational library you can embed directly into your applications - similar to LMDB or LevelDB, but with some unique features.Some features- Atomic, consistent, isolated (Read Committed)

Show HN: Hosting a Production, Computationally Intensive, Mobile Bot

There are 150 million flagship phones in the world.They are used for doom scrolling and social media.They have the computational power of a laptop, and sit unused. That is a waste.What is stopping us? Heat. I aim to solve that.I have gotten my code's thermal prediction accuracy to a remarkable level, and was able to launch and sustain an animation rendering Discord bot with real time physics simulations and heavy cache operations and computational backend. My launcher successfully deferred

Mamdani, Cuomo React to Trump’s New York Funding Threat

On the eve of New York City’s mayoral election, President Trump backs Andrew Cuomo and threatens to cut funds if front-runner ...

MAFS UK fans react as fan-favourite couple risk breaking up over cats

Married at First Sight UK fans have reacted after it looked as though fan-favourite couple Keye and Davide were "going to ...

Sharon and Kelly Osbourne React After Black Sabbath Superfans Get Engaged by Bridge Dedicated to the Band

Sharon and Kelly Osbourne reacted after two Black Sabbath superfans got engaged by a bridge dedicated to the heavy metal band ...

Myles Turner, Milwaukee Bucks react to Indiana fans booing during video tribute and game

Myles Turner and his Milwaukee Bucks teammates react to Indiana fans booing during his video tribute and during game on Nov. 3, 2025.

With LSU football firing Brian Kelly, local high school football coaches and recruits react

Kelly’s firing sent shockwaves into the college football world, and the entire state of Louisiana. It also stirred up ...

Chase Brown's Comments on Bengals' Defense is 'Not How We Want to React,' HC Says

After a late collapse from the Cincinnati Bengals' defense in a loss to the Chicago Bears on Sunday, Chase Brown voiced his frustration to the media.

Trey Hendrickson, Bengals Defensive Leaders React to Offensive Frustration With Historically Bad Play

CINCINNATI — The Bengals' defensive leaders echoed many of the same statements on Monday that they've said all season. Stones ...

Cattle ranchers react to beef prices plan. How Trump's 'favorite president' fits in.

President Donald Trump has been cozy with Argentina's president. Now he's allowing more beef imports amid high prices. US ...

4 Non Blondes React to TikTok’s New Obsession With Their 1993 Anthem

An alt-rock classic from over 30 years ago is everywhere thanks to a mashup with Nicki Minaj — and 4 Non Blondes are loving ...

Social Media React to UCLA Basketball Season Opener

The Bruins are at home to start the season against Eastern Washington, a team that is currently rebuilding after a 10-22 ...

‘Dukes of Hazzard’ stars react to Catherine Bach’s sudden health scare, hospitalization

Cooter’s Place, a series of museums and gift shops owned by Jones and dedicated to “The Dukes of Hazzard” show, was scheduled ...

Show HN: Build and deploy AI agents from your own data in under 60 seconds

Hi HN,I built Bot The Builder to solve a recurring problem I kept facing while building chatbots for clients: every time, I had to rebuild the same RAG stack, embed the same knowledge base, and deploy from scratch—even for small use cases.So I created a tool that lets you build and deploy AI agents from your own data (PDFs, docs, URLs, text) in under 60 seconds — no code required. You can embed the agent in any website or access it via API.### Why I built it: - Most “AI chatbot builders” are eit

Gröbner Bases Explained: From Abstract Algebra to Real-World Optimization

The applications are indeed vast. Think of Gröbner bases as a "universal coordinate system" for solving multivariate polynomial systems. Some concrete examples:Robotics & Kinematics: Calculate exact joint angles for robotic arms to reach target positions while avoiding collisions and singularities.Structural Engineering: Determine optimal load distribution in bridges and buildings with multiple support points and material constraints.Game Development: Solve inverse kinematics fo

Show HN: CheatSheet An Open-source spreadsheet you can talk to

I built CheatSheet, an open-source Google Sheets alternative that lets you cheat at spreadsheets.Say "update the expenses column" or "add a new row with this data" and it manipulates cells through AI. Has multiple tabs and connects to external data through MCP servers (Linear, GitHub, Supabase).Adding formulas, graphs, voice input, thinking, and more features next!Built with React and Tambo AI. Runs in your browser with your own API keys.GitHub: https://github.com&#