How to spot shrinkflation at Lidl and Carrefour online
A 4-step routine for comparing grocery prices fairly, plus a free extension that remembers pack sizes for you
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The round at the base of a boss is a torus, so my STL to STEP tool now writes one
I build mesh2cad, an open-source CLI and MCP server that turns an STL (or OBJ/PLY) into a STEP file with real planes, cylinders, spheres, cones and fillets you can select and dimension in FreeCAD, Fus
Building a tray app for a 480x320 USB PC screen
Temps, watts, a clock, weather and now playing on a 3.5 inch case panel
Which theme and apps does a Shopify store use? Reading it from the homepage HTML
If you sell to Shopify merchants (an app, an agency service, a theme), the first question about a lead is usually: which theme are they on, and which apps do they already pay for? You don't need a pai
I diffed GNU coreutils against its Rust rewrite with auto-generated tests
Black-box behavioral tests for any CLI, so a rewrite can prove it behaves the same
I built a userscript and Firefox add-on that checks if EU discounts are real
Free, open source, local-only check against the EU 30-day lowest price rule
What a real user's USB capture found that my synthetic tests didn't: two bugs in usb-rea
For weeks every test of usb-rea ran on captures I generated myself, on protocols documented by liquidctl and rivalcfg, and on a few public Wireshark samples. All of that passed. Then a real user share
What my cheap Wi-Fi pet feeder does on my network
I watched a camera feeder's traffic for an evening and turned the process into a small open tool