Niche: This, you'd have to ask @kino, as the quote is from him/her:
https://mastodon.social/@HistoPol/114184106658296015 ;)
However, from a marketing perspective, a products with its pros and cons fulfills the needs of certain people, who may be grouped in "target markets." If that market segment is very small, it is called a "niche."
In thus case, I assume that niche is the one for IT geeks. ;)