thats an apache question I cannot answer. not related to CLJS/JS.

Can someone remind me how to configure compiler to use an alternate file for a required cljs file. E.g. My code says require a but I want the compiler to really pull in b.cljs.

is it just the same as what you’d do for a NPM file?

{:browser
   {:js-options
     {:resolve {a {:require b}}}}}