Finally got to try it and it looks like that works. Sample of project.cljs

:dependencies [[devcards "0.2.5" :exclusions [[reagent]]]
                 [funcool/cuerdas "2.0.5"]
                 [cljsjs/react "16.4.0-0"]
                 [cljsjs/react-dom "16.4.0-0"]
                 [reagent "0.8.1"]

But so far so good, thanks @bfast and @bhauman. I wonder Bruce, have you ever considered extracting the OM and Reagent components from Devcards into separate components? It might mean less to maintain.

@paytonrules absolutely, would prefer that, but we live in a pretty small universe so I'm happy to take PRs to update things