This collection page of Emacs packages: https://emacs.zeef.com contains only packages which are last updated at least 2 years ago, and it's already an impressive amount to me, which indicates that Emacs community is also very active, despite having - in IT terms- a very ancient editor.
Ancient, stable platforms enable long-termism, which encourages scratching your itches - whatever you write, it will likely keep working until after you're dead.
