angular-rpg-game-engine VS angular-builders

If you're interested my engine with tech demo is available here

To see the source code visit the github page here: https://github.com/kingbonio/angular-rpg-game-engine

You can check out his repo at: https://github.com/just-jeb/angular-builders

How does it work in Jest? The secret sauce is the jest-angular-preset project. It holds all the logic, and the Nx and just-jeb/angular-builders depend on it.

I already did it using Angular custom webpack and a custom build script I included in my angular.json file. You can just read the system env variables from the parameters provided by webpack and insert them using the webpack.DefinePlugin().

You would need a custom webpack config using asset modules to do this.

I think most people use this plugin if they want to customize the webpack config: https://github.com/just-jeb/angular-builders/tree/master/packages/custom-webpack

I use a custom webpack builder for this. There's a bit of pre-req setup to do in your angular.json, but after that you can run your own webpack script for any of your build configurations.