If you've seen that it's either from a PR or from the scaffolded project I based it on. I never put it there intentionally. I know I tried a while back but never got it working so I skipped it. It could definitely be nice to get flow warnings though, so if you get it working, please let me know 👍

@nikki it does use it but in a modified way: https://github.com/artemyarulin/ktoa/blob/master/src/ktoa/repl.cljc

I put a super minimal Boot project that can run on Expo here https://github.com/nikki93/boot-expo

doesn't use any React wrappers so that users can use their own (the included example only uses React Native through direct JS interop)

supports 'hot reloading' (really just re-eval of JS compiles of re-written sources) and REPL

very minimal additional coding over normal web CLJS Boot projects

(doesn't use boot-react-native, but def borrows the replace-main from it, so thanks for that :) )