[ArturSoler]

The frontend is built with ScalaJs and React (using https://github.com/japgolly/scalajs-react).

The backend is built with Scala too, mostly using Akka Streams for the data handling. As a database it uses Cassandra.

edited - word choice

[tstyle]

The chart and the depth graph looks great, how did you build those?

[ArturSoler]

It's all SVG elements

[jadbox]

Woh, neat stack.