Dan Mahr<p>Want to learn how to simulate plate tectonics with PROJ and harmonize GCP/RTK/PPK drone data to 1 cm accuracy? Of course you do! 😎 Come to my talk at <a href="https://fosstodon.org/tags/FOSS4GNA" class="mention hashtag" rel="tag">#<span>FOSS4GNA</span></a> in St. Louis on Weds at 10:30am. </p><p><span class="h-card" translate="no"><a href="https://bird.makeup/users/foss4gna" class="u-url mention">@<span>foss4gna</span></a></span> <span class="h-card" translate="no"><a href="https://fosstodon.org/@osgeo" class="u-url mention">@<span>osgeo</span></a></span></p>