Photo by Takenori Okashita (GOUTEN)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/185148045@N02">WordCamp Niigata</a>
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/185148045@N02/48961847781/">20191022_WCN2019-041</a>