What is macbook-charger-power-indicator?

This is a small macOS menu bar app that adds charging power information to the top of your screen. When your MacBook is running on battery, it shows a battery icon with the current charge percentage. When you plug in a charger, the icon turns green and displays the actual wattage being delivered, such as 86W, rather than the percentage. This makes it easy to see at a glance whether your charger is delivering full power or a reduced amount. Clicking the menu bar icon opens a dropdown with more detail. The battery section shows its health condition, cycle count, capacity, temperature, voltage, and current. The power adapter section lists the charger's name, wattage, negotiated voltage and current, manufacturer, model, serial number, and firmware version. A third section shows the USB-C power profiles the charger supports, meaning the different voltage and current combinations it can negotiate. All of this information is read directly from macOS using a built-in system interface called IOKit. Nothing is sent over the internet, and the app has no network access. It runs entirely in the background without a window or a Dock icon, appearing only as the menu bar item. You can quit it from the dropdown menu. The project is built with Swift and ships with a build script that compiles the app locally, a packaging script that creates a distributable disk image, and an install script that adds the app to your login items so it starts automatically. The license is MIT.