This project is a very basic app in Scala 3 + ZIO 2 + zio-http + Laminar.
The backend uses zio-http and zio 2.
The frontend uses Laminar and zio 2, allowing parallelism in a single-threaded web page.

The project is in itself totally useless, but is a good starting point for anyone interested in this amazing technology.

I. Start the app

1. Start backend

- in a console

sbt "~backend / run"

2. Start frontend

- in another console

sbt "~frontend / fastOptJS"

3. Test the app

Then you can access the frontend at http://localhost:8090
click on one button or the other and see parallelism. 200 counters are displayed, and can be run independently. Each counter will stop counting 30 seconds after a start. The start depends on the x position of the mouse.

Note: The .gitignore file is a little bit unconventional, indicating what to keep and not what to ignore.