local, (over)earnest, often amateurish, community-minded, enthusiastic, goofy, non-slick, DIY:
the novel #TomsCrossing is set in 1982, but flash-forwards show that later on (in-universe), many unrelated people make art, fan-art, folk art etc. in reaction to stuff that happens in the book.
if you know the fediverse AND read the lengthy descriptions of these artworks, discussions, exhibition spaces etc., you will think: "same vibe!"