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npm command not found on Windows: fix the PATH

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I recently hit a wall while configuring my development environment on Windows. It's one of those subtle issues that can waste an afternoon if you don't know what to look for. Here's exactly how I diagnosed and fixed a 'command not found' error after a successful global install. The Problem I decided to add a markdown processing tool to my toolkit by running: npm install -g markdown-it-cli The terminal output confirmed the installation succeeded, displaying a message about added packages. Satisfied, I tried to use it by typing markdown-it-cli in the command line. Windows immediately responded with: 'markdown-it-cli is not recognized as an internal or external command, operable program or batch file.' This error means Windows looked through every folder in its search list and couldn't find an executable with that name. Attempts and Failures My initial reaction was to suspect the package itself might be broken. I tried running it using npx , wh...
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Claude CLI 401 Unauthorized Refresh Token Issue

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Tailscale without sudo: what userspace mode actually costs you

At first, I installed Tailscale on macOS knowing I did not have admin rights to write to system directories. The CLI package installed cleanly enough, landing entirely within my user space without triggering any permission errors or requiring elevated prompts. The installation process felt seamless, but the friction appeared immediately during usage. Every single command I typed required appending --socket=$HOME/.tailscale/tailscaled.sock to talk to the daemon. I found myself adding this flag to status checks, key generation, and connection queries across multiple sessions. The repetition was exhausting for a tool I expected to run in the background, turning routine operations into a chore. I eventually wrote a shell function to wrap this flag, allowing me to call tailscale directly without typing the socket path every time. This workaround saved my sanity but highlighted that userspace mode demands extra configuration just to use the CLI, and any automation scripts I maintained had...
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