Developer builds Junction app to auto-switch Mac browsers based on battery state

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A developer created a free macOS utility called Junction after noticing his Zen browser drained battery significantly faster than Safari at coffee shops. The app sits in the menu bar and intercepts every system-wide link click, routing it to a user-specified browser based on customizable rules. Its key feature is power-state awareness, automatically switching to a battery-friendly browser when unplugged and reverting when the charger is connected, with no restart required. Users can also set host- or regex-based rules, such as always opening GitHub links in Chrome, with a keyboard-navigable picker for unmatched links. Junction is available for free, with an optional one-time supporter license for those who wish to contribute.

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