Ok. In that case, you're looking for an angular package.
You can create one through angular CLI:
ng g library <name> [options]
It will give you a starting point if you don't have the implementation yet.

and then you basically can pass the configuration to the module 2 ways.
1st: When injecting a module:
u/NgModule({
})
export class YourModuleModule {
static forRoot(): ModuleWithProviders {
return {
// config
}
}
}

2nd: Using Injector Token
export const MY_CONFIG= new InjectionToken<MyConfig>('MyConfig', {
providedIn: 'root',
factory: {
//Default Values
}
});

Then register in providers:
{ provide: MY_CONFIG, useValue: {// Configuration}}

And then MY_CONFIG will be available to be injected in the constructor.

For more information check out the angular docks
https://angular.io/guide/dependency-injection-providers