reagent & js-interop is now fully available in the viewer api on main, https://github.com/nextjournal/clerk/pull/105 is an example of a multiviewer for SICMUtils literal expressions.
I plan to cut a Clerk release tomorrow, would be great if folks could take it for a spin.
oh yes, and the above PR was all thanks to code from @borkdude I could just use, so thanks for that!
preliminary changelog https://github.com/nextjournal/clerk/blob/ba0baabfebdb2930ecb88a4664ca058cfdd08ce1/CHANGELOG.md#unreleased
the reagent interop has made pushing more interactivity to the front-end a breeze! 💯