Piper

Piper is the GUI for libratbag, configuring gaming mice without the 500MB vendor suite: DPI stages, polling rate, button remapping, macros, and onboard profile management, with settings written to the mouse’s memory where supported. Logitech G-series support is particularly strong, with Razer, SteelSeries, and others covered per-device.

Coverage is device-by-device — check libratbag’s supported list for your exact model, because a brand being listed doesn’t mean every mouse is. Fancy vendor features (per-game auto-switching, cloud sync, some RGB effects) aren’t replicated; OpenRGB handles lighting on many devices. For Razer specifically, OpenRazer+Polychromatic is the deeper alternative stack.