{ pkgs, ... }:
{
  services.picom = {
    enable = true;
    backend = "xrender";
    # TODO: figure out why this is so slooo
    fade = false;

    # The time between steps in a fade in milliseconds.
    fadeDelta = 10;
    fadeSteps = [ 0.03 0.03 ];

    # Enabled client-side shadows on windows.
    shadow = true;
    shadowOffsets = [ (-5) (-5) ];
    # The translucency for shadows. (default .75)
    shadowOpacity = 0.5;

    vSync = true;

    inactiveOpacity = 1;
    activeOpacity = 1;

    opacityRules = [
      "85:class_g = 'Alacritty' && focused"
      "60:class_g = 'Alacritty' && !focused"
    ];

    settings = {
      #blur = {
      #  background = true;
      #  method = "kernel";
      #  kern = "7x7gaussian";
      #  strength = 20;
      #};
      detect-rounded-corners = true;
      shadow-ignore-shaped = false;
    };


    wintypes = {
      tooltip =
        {
          # fade: Fade the particular type of windows.
          fade = true;
          # shadow: Give those windows shadow
          shadow = false;
          # opacity: Default opacity for the type of windows.
          opacity = 0.85;
          # focus: Whether to always consider windows of this type focused.
          focus = true;
        };
    };
  };
}