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> Most of the time I need REPL-like functionalities, I need it in the heart of my application, with all its structures and state initialized and in the middle of a breakpoint. I hardly ever need to type snippets of code with zero context around them, which is what REPL's offer.

This is why we Lisp developers have networked REPLs -- I can start up a remote JVM, in communication with other services, connected to my local vim session. I can dynamically load code into it, start and stop my application, etc, all from my editor.

https://github.com/clojure/tools.nrepl



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