Always running and IoC

Good morning,
I have a .net framework 4.8 web application and i would like to setup Hangfire for always running (Making ASP.NET Application Always Running — Hangfire Documentation) and IoC (Using IoC Containers — Hangfire Documentation): I’m using Lightinject.

I haven’t understood how to configure the whole thing: where I have to instantiate my ServiceContainer? In the IProcessHostPreloadClient implementations or in the Application_Start method?
Because if I do it in the HangfireBootstrapper i have to create two ServiceContainer: one instantiated by the IProcessHostPreloadClient implementation and one by the Application_Start method.

Thank you