I sometimes find requests in Phab for help with customizing the main page of wikis.
That is unfortunately out of scope for Phab tasks but of course the problem still exists.
* Layout issues, often on smaller screen widths; e.g. {T241499}, {T231949}, {T104525}, {T246580}
* How to copy templates; e.g. {T114340} / https://www.mediawiki.org/wiki/Help:Templates#Copying_from_one_wiki_to_another
Mistakes easily happen, see e.g. {T107743}
* Should probably cover how to not abuse <table> for layout when the table does not include tabular data, but that requires using actual HTML as MediaWiki syntax does not offer this: {F31495540} Instead, `<div style="float:left">image on the left</div> This is some text right of that image <div style="clear:both"></div>`
* Should cover / keep {T32405} in mind which is not always known. See T174406#3567413 for such an example.
* Might welcome input from Reading Web, pages exist such as https://www.mediawiki.org/wiki/Reading/Web/Projects/Mobile_Page_Issues
Poster at [36C3](https://en.wikipedia.org/wiki/Chaos_Communication_Congress) which reminded me of this again:
{F31495542}