nixos-config/home-manager/modules/kanshi.nix

{
  services.kanshi = {
    enable = true;
    profiles = {
      "laptop" = {
        outputs = [
          {
            criteria = "eDP-1";
            scale = 1.8;
          }
        ];
      };
      "homeoffice" = {
        outputs = [
          {
            criteria = "eDP-1";
            scale = 1.8;
            position = "0,0";
          }
          {
            criteria = "DP-3";
            scale = 1.3;
            position = "2133,0";
          }
          {
            criteria = "DP-1";
            scale = 1.3;
            position = "5087,0";
          }
        ];
      };
    };
  };

}