As explained in Adding extra files to Universal GUI container | Thinkwise Community, the current Universal GUI container doesn’t support adding custom html files (like Screen components | Thinkwise Documentation or Upload multiple files using the Universal GUI | Thinkwise Community). This makes it quite cumbersome to add custom components to our applications when using containers.
Please add the possibility to mount a volume to /etc/universal/custom/ for html files (or include html files in the assets mount).

