@tpope thanks for the all the updates to fireplace! Especially the option to specify the piggieback connection. With the following in my vim config it alleviates the biggest annoyance I had with fireplace launching Nashorn (taking dozens of seconds) when I intended it to connect to my existing repl: let g:fireplace_cljs_repl = '(figwheel.main.api/repl-env "dev")'