Building a Function Key (F1–F12) Tester: Handling the Fn-Row Mess Across OSes
Function keys seem like the simplest possible thing to test — 12 keys, press them, see if they register. Building the Function Key Test for Keyboard…
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How to Validate JSON Safely When You’re Debugging APIs
When an API response is hard to read, I usually format it before I start debugging. A clear JSON tree makes missing commas, mismatched braces, wrong…
Translating carrier scan text: all-or-nothing, or don't bother
Every cross-border tracking UI eventually hits the same wall: a scan line arrives in a language your users cannot read, and you have to decide what…
Building an Editable 3D Indoor Map in the Browser
Indoor maps are often treated as a rendering problem: take a floor plan, extrude a few walls, and display the result. That is useful for a viewer, b…