Now.. in theory it should be easy to open the cider-nrepl project and compile changes there, right? Or is there some recursion I need to be aware of? I want to work on this issue: https://github.com/clojure-emacs/cider-nrepl/issues/530

i think for straight forward things it works. debugging the debugger can get a bit weird

If I want to immediately add these to a 3rd party library https://github.com/clojure-emacs/cider/blob/master/doc/configuration/indentation.md then I should use alter-meta! over the 3rd party var, right? i.e. no CIDER-local way?

if you want indentation for a 3rd party library that doesn't have dynamic indentation specs, you probably want to use put-clojure-indent or define-clojure-indent from clojure-mode, instead of altering metadata