My code is a widget, not a startup module, which works very well in (my) standalone single file wikis (see the screenshot in Simple HighlightWidget (again)) and which I continue to find very useful. I ran into reference errors when trying to make it a plugin using the nodejs approach to share it to the community. My search to solve the reference error problem turned up only the reference given above, which does discuss a startup module, not a widget, which at first I had overlooked. I used the tutorial you mention more than a year ago when I developed my music player widget (never published, although perfectly willing to do so, as it is very specialized (for classical music) and, based on discussions with classical music lover friends, apparently not of interest). I have looked at the code of various other plugins but have so far not found a way to make my widget work as a plugin using the nodejs approach, as documented e.g. in Grok TiddlyWiki — Build a deep, lasting understanding of TiddlyWiki (and other places). On the other hand, there is no problem with Eric Shulman’s approach (Plugin Development Workflow - #6 by EricShulman), at least not for local standalone wikis.