Lemmy is a free and open-source software for running self-hosted social news aggregation and discussion forums.

"It was nameless for a long time, but I wanted to keep with the fediverse tradition of naming projects after animals.

I was playing that old-school game Lemmings, and Lemmy (from Motorhead) had passed away that week, and we held a few polls for names, and I went with that.

[10] Users on individual instances submit posts with links, text, or pictures to user-created forums for discussion called "communities".

[16] Reddit banned a user for promoting switching to Lemmy along with the r/LemmyMigration subreddit as a whole, leading to a Streisand effect after it garnered attention on sites like Hacker News.