menologion/waybar/config.jsonc

// Drop this module into your waybar config's "modules-right" as
// "custom/typikon", and merge the block below.
{
  "custom/typikon": {
    "exec": "menologion-waybar",
    // Add -j to pin a jurisdiction, e.g. "menologion-waybar -j rocor".
    // Without it, whatever `typikon --set-default` wrote is used.
    "return-type": "json",
    // The answer changes at midnight and at no other moment, so this is only
    // about noticing the rollover.
    "interval": 1800,
    "tooltip": true,
    "on-click": "typikon --days 7"
  }
}