renovate-config/grafana-dashboards.json

{
  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
  "customDatasources": {
    "grafana-dashboards": {
      "defaultRegistryUrlTemplate": "https://grafana.com/api/dashboards/{{ packageName }}",
      "format": "json",
      "transformTemplates": [
        "{\"releases\": [{\"version\": $string(revision)}], \"homepage\": \"https://grafana.com/dashboards/$string(id)\", \"sourceUrl\": \"https://grafana.com/dashboards/$string(id)\"}"
      ]
    }
  }
}