Clojurians Log v2

i'm trying to modify the example to run the dev build so my gf and i can try it out. i'd like to modify the port and possibly host. i've tried modifying example/config.edn to add {:dev {:example.biff/host "my-ip", :biff.web/port 8081}} and modify config.edn to add {:dev {:biff/host "my-ip"}}. i was able to open my-ip:9630, and start the app build. but i'm unable to connect to my-ip:8081.

do i need to modify both config.edn and example/config.edn?

i was able to modify just the port, so i can go to localhost:8081

also, there's an exception thrown when running the getting started: https://wtools.io/paste-code/b1N0

this is the output from running the instructions https://findka.com/biff/#getting-started here