How to Fix npm SSL Certificate Errors on macOS: A Complete Troubleshooting Guide The core question this article answers: Why does npm install throw UNABLE_TO_GET_ISSUER_CERT_LOCALLY or curl: (77) error setting certificate verify locations on macOS — and how do you fix it for good? The short answer: the root cause is a missing /etc/ssl/cert.pem file on your system. Regenerating it and wiring up NODE_EXTRA_CA_CERTS for Node.js resolves the issue end-to-end. This guide walks through the full diagnostic chain — from the first error message to a fully working runtime. The Setup: One Package Install, Five Layers of Failure What started …
Claude Code 2.1.0 Update Failing on macOS? A Step-by-Step Diagnostic Guide for Developers Summary: This article provides a structured analysis of the startup failure encountered after updating Claude Code to version 2.1.0 on macOS. It details the reproducible issue, explores potential root causes like configuration conflicts or version incompatibility, and offers a systematic troubleshooting framework. The goal is to help users restore functionality by diagnosing the specific failure point within their environment, using only the facts from the original bug report. You’ve just updated your Claude Code to the latest and greatest—version 2.1.0. You click to launch it, expecting new …
Turn Your MacBook Trackpad into a Digital Scale: The Complete TrackWeight Guide An easy-to-follow walkthrough for curious minds with a 2015-or-newer MacBook 1. What Exactly Is TrackWeight? TrackWeight is a small, open-source macOS application that turns the Force Touch trackpad on a modern MacBook into a surprisingly accurate digital scale. Instead of buying an extra kitchen scale or lab balance, you simply rest your finger on the trackpad, place an object next to your finger, and read the weight in grams on your screen. The project was released by Krish Shah and is hosted on GitHub under the MIT license. …