Sumana Harihareswara recently provided me assistance with some code I wanted to write and invited me to join the wikitech mailing list, and she also suggested I share my response to her with the rest of the list subscribers, which I have reproduced (with some mild alterations) below:
Thanks for the mailing list link, Sumana, just submitted a subscription request.
As for those links you provided, I have bookmarked them and will be studying them extensively, your assistance is greatly appreciated :)
As for my wiki (https://mediawikitesters.orain.org/wiki/Main_Page), I like to test gadgets, user scripts, and extensions, and the wiki is basically for me and anyone else who is interested to display useful code, test it in a live environment, and hopefully swap notes with each other on how to improve it it. The wiki is still rather new, but anyone interested is welcome.
As for the gadgets section of my wiki, I find gadgets to be incredibly useful and am trying to compile as many gadgets as I can that can be used by anyone with MediaWiki that I find universally useful and adaptable to any wiki, as I prefer code that works out of the box and is compatible as possible, especially with the more recent versions of MediaWiki, and my goal is to make it available to anyone for any wiki.
Most are from WMF projects or have been adapted from them to be useful on any wiki.