Open-source alternatives to Lunar

Control Mac display brightness and volume from keyboard — 🖥 Control your display's brightness & volume on your Mac as if it was a native Apple Display. Use Apple Keyboard keys or custom shortcuts. Shows the native macOS OSDs.

↔ alternative to Lunar

macOS external monitor control — Free, open-source external monitor control for macOS: a lightweight menu bar app with sharp HiDPI/Retina scaling (no more blurry or tiny text), DDC brightness, presets, and virtual displays. A free alternative to BetterDisplay and Lunar, including features they charge for.

↔ alternative to BetterDisplay、Lunar