How to install an electron app from it's repo?

While browsing for some WebGL games i came across this game, and was suprised to see on their discord that they would have a Linux client soon.
So when i asked i was directed to: https://github.com/OnRushStudio/Venge-Client
And told to clone the repo and run npm startnpm start inside it.

Now we all love DenoDeno right?
So how can we use this using DenoDeno instead of node?
Please step-by-step instructions are welcome