nixos-configs/config/swaync/config.json

{
  "$schema": "/etc/xdg/swaync/configSchema.json",

  "positionX": "right",
  "positionY": "top",
  "control-center-positionX": "none",
  "control-center-positionY": "none",
  "control-center-margin-top": 8,
  "control-center-margin-bottom": 8,
  "control-center-margin-right": 8,
  "control-center-margin-left": 8,
  "control-center-width": 500,
  "control-center-height": 1000,
  "fit-to-screen": false,

  "layer-shell": true,
  "layer": "overlay",
  "control-center-layer": "overlay",
  "cssPriority": "user",
  "notification-icon-size": 64,
  "notification-body-image-height": 300,
  "notification-body-image-width": 200,
  "notification-inline-replies": true,
  "timeout": 10,
  "timeout-low": 5,
  "timeout-critical": 0,
  "notification-window-width": 500,
  "keyboard-shortcuts": true,
  "image-visibility": "when-available",
  "transition-time": 200,
  "hide-on-clear": true,
  "hide-on-action": true,
  "script-fail-notify": true,

  "widgets": [
    "mpris",
    "title",
    "inhibitors",
    "dnd",
    "notifications"
  ],
  "widget-config": {
    "inhibitors": {
      "text": "Inhibitors",
      "button-text": "Clear All",
      "clear-all-button": true
    },
    "title": {
      "text": "Notifications",
      "clear-all-button": true,
      "button-text": "Clear All"
    },
    "dnd": {
      "text": "Do Not Disturb"
    },
    "label": {
      "max-lines": 5,
      "text": "Control Center"
    },
    "mpris": {
      "image-size": 96,
      "image-radius": 12
    }
  }
}