Mouser is an open-source button remapper for the Logitech MX Master 3S mouse that offers local alternatives to Logitech Options+ software, with support for Windows and macOS, per-application profiles, and 22 built-in actions across various categories. The lightweight application requires no cloud services or Logitech account, stores configuration locally as JSON, and can be downloaded as a portable executable or installed from source code.
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Mouser is an open-source button remapper for the Logitech MX Master 3S mouse that offers local alternatives to Logitech Options+ software, with support for Windows and macOS, per-application profiles, and 22 built-in actions across various categories. The lightweight application requires no cloud services or Logitech account, stores configuration locally as JSON, and can be downloaded as a portable executable or installed from source code.