I wouldn't call Elm dead. Development has frozen, this is true, but X11's development was frozen and it still powered so much for decades. This is actually super common in the Clojure community -- many libraries look dead, but they're just feature-complete and FP is usually quite bug-free, when implemented correctly.
Totally recognize and agree with the lack of libraries -- that's really Elm's weakest side.
The issue is Elm isn't feature complete though, at least not what its founder's vision is supposed to be, and they also aren't trying to improve it while berating users. This post [0] is as true as it ever was, including my comment there.
Totally recognize and agree with the lack of libraries -- that's really Elm's weakest side.