private String getLastTileLogDetails() {
    TileCoord lastTile = lastTileWritten.get();
    String blurb;
    if (lastTile == null) {
      blurb = "n/a";
    } else {
      blurb = "%d/%d/%d (z%d %s) %s".formatted(
        lastTile.z(), lastTile.x(), lastTile.y(),
        lastTile.z(),
        Format.defaultInstance().percent(archive.tileOrder().progressOnLevel(lastTile, config.bounds().tileExtents())),
        lastTile.getDebugUrl(config.debugUrlPattern())
      );
    }
    return "last tile: " + blurb;
  }
Reads all {@code features}, encodes them in parallel, and writes to {@code output}.
planetiler-core/src/main/java/com/onthegomap/planetiler/archive/TileArchiveWriter.java