About
Gpuer is a SwiftUI menu bar app by Simon Willison that shows GPU utilisation and memory stats for Apple Silicon Macs (via the AGXAccelerator interface) in a drop-down panel, built from a single Swift file with swiftc. The README states it was vibe coded using Claude Opus 4.6 and GPT-5.4 and that the author cannot confidently evaluate the macOS internals involved.

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