The central device for the bluetooth public transport departure display is moved to a Raspberry Pi Zero. For this I am using the NodeJs libraries Noble and Bleno.
Installing the Tooling
I had problems with the Fedora sbt package, so I switched to the official repository as described here: https://www.scala-sbt.org/1.0/docs/Installing-sbt-on-Linux.html
Learning from a Sample Project
I followed the blog post in scalac.io to inspect the pattern used to create a graphql api with akka.