I think if you compare the effort in
- having to download lizzie (especially for non-windows users)
- the mess of options for the OGS demo board feature, not to mention having to make a new demo board anytime the board size changes or possibly having to clean the variation tree (after a while it gets slow).
to using the tool you and Ruby were sharing, and then compare it to @Jirogo36’s usage which reminded me/led me to recommend this thread
The positions/images above look exactly like the tools used in this thread 
I’ve started to learn javascript myself (kind of for work) and how to set up github page (to play with css on ogs profiles ). I could also try to host your or Ruby’s tools if that’s something you’d like but don’t want to host it yourselves
I know what you mean though, one could download sabaki or other sgf editors or use the linked besogo for other features.