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There "was" Windows support for Clojure using Chocolatey: https://chocolatey.org/packages/clojure and it was quite good.
Just choco install clojure and everything was working.
choco install clojure
Wouldn't be possible to just extend that old integration to cover Clojure 10 and the tools?
The solution here https://github.com/clojure/tools.deps.alpha/wiki/clj-on-Windows seems quite complicated compared to using jLine like in the Chocolatey package above.
I would be interested to learn what that was. It was not anything created by the core team.
I'm guessing it was just a script to run the clojure repl from a jar, which is considerably less than the deps.edn clj support.