<p><span class="h-card" translate="no"><a href="https://fosstodon.org/@deshipu" class="u-url mention">@<span>deshipu</span></a></span> I'm kind of wondering if it's a way for the device (a gas pump) to visibly indicate a hardware/software fault of some kind. Perhaps like a warning light, but not one that would be easily informative to anyone except a knowledgable technician.</p>