private static Map<String, String> mapWithBuildInfo() {
    Map<String, String> result = new LinkedHashMap<>();
    var buildInfo = BuildInfo.get();
    if (buildInfo != null) {
      if (buildInfo.version() != null) {
        result.put("planetiler:version", buildInfo.version());
      }
      if (buildInfo.githash() != null) {
        result.put("planetiler:githash", buildInfo.githash());
      }
      if (buildInfo.buildTimeString() != null) {
        result.put("planetiler:buildtime", buildInfo.buildTimeString());
      }
    }
    return result;
  }
Metadata associated with a tile archive.
<p>
The default (de-)serialization corresponds to the
<a href="https://github.com/mapbox/mbtiles-spec/blob/master/1.3/spec.md#metadata">mbtiles spec</a>. As such each
value is a string.
planetiler-core/src/main/java/com/onthegomap/planetiler/archive/TileArchiveMetadata.java