* [clj-coll](https://github.com/dtenny/clj-coll) - Clojure collection and sequence APIs in Common Lisp, with optional Clojure collection syntax.
* provides immutable Cons, Queue, PersistentList, capabilities as well as Vector, Set, and Map analogues built on FSet (but accessed entirely via Clojure APIs).
* optional read syntax so you can type `{:a 1 :b 2}`, `#{1 2 3}`, and `[1 2 3]`.