strip docker prefix if present

app/views/application/_footer.html.erb

@@ -8,7 +8,7 @@
 			<ul class="list-unstyled small text-muted">
 				<li class="mb-2">Designed and built by <a href="https://floppy.org.uk">James</a> with help from <a href="https://github.com/manyfold3d/manyfold/graphs/contributors">our contributors</a>.</li>
 				<li class="mb-2">Open Source under the <a href="https://github.com/manyfold3d/manyfold/blob/main/LICENSE.md" target="_blank" rel="license noopener">MIT license</a>.</li>
-				<li class="mb-2">Version: <%= link_to "#{ENV.fetch("APP_VERSION", "unknown")} (#{ENV.fetch ("GIT_SHA", "main")[0,7]})",
+				<li class="mb-2">Version: <%= link_to "#{ENV.fetch("APP_VERSION", "unknown").split(":")[-1]} (#{ENV.fetch ("GIT_SHA", "main")[0,7]})",
 					"https://github.com/manyfold3d/manyfold/tree/#{ENV.fetch ("GIT_SHA", "main")}"%>
 				</li>
 			</ul>