- Java - Probably you already have java installed but if not, supported versions are 8,11,17. To install check your favorite package manager. Brew, Nix, Chocolatey, Scoop, etc.
- Clojure - check out official installation guide
- Your favorite text editor. Best user experience developing Clojure(script) is with (Neo)Vim, Emacs, VSCode, IntelliJ
I use Conjure and I would recommend it every time. Also there is Fireplace made by legend so you can't miss with either...
Help... Please point out some good setup documentation. Anyway if u use Emacs you are more than capable to find a way to setup Clojure environment
Strongly suggested to use Calva
Check out Cursive