Struggling to migrate to v5/6

[crfrolik]

I'm getting an error like:

main.541632b0246b7ec3.js:1 NullInjectorError: R3InjectorError(t)[t -> InjectionToken  -> [object Object] -> t -> t -> InjectionToken TRANSLOCO_TRANSPILER -> InjectionToken TRANSLOCO_TRANSPILER]: 
  NullInjectorError: No provider for InjectionToken TRANSLOCO_TRANSPILER!

My understanding from looking at the docs is that I need to use provideTransloco, but I have no idea how to migrate my code to use this pattern.

const translocoConfigFactory = (lang: LanguageService): TranslocoConfig => {
  const languageTag = TranslocoUtil.validateLanguageTag(
    lang.languageTag
  )
    ? lang.languageTag
    : TranslocoUtil.defaultLang;

  return translocoConfig({
    availableLangs: TranslocoUtil.getAllLangs(languageTag),
    defaultLang: languageTag,
    reRenderOnLangChange: true,
    prodMode: environment.production,
    flatten: {
      aot: environment.production,
    },
    fallbackLang: TranslocoUtil.defaultLang,
    missingHandler: { allowEmpty: true, useFallbackTranslation: true },
  });
};

@NgModule({
  exports: [ TranslocoModule ],
  providers: [
    {
      provide: TRANSLOCO_CONFIG,
      useFactory: translocoConfigFactory,
      deps: [LanguageService],
    },
    {
      provide: TRANSLOCO_FALLBACK_STRATEGY,
      useClass: LanguageFallbackStrategy,
    },
    { provide: TRANSLOCO_LOADER, useClass: TranslocoHttpLoader },
    { provide: TRANSLOCO_MISSING_HANDLER, useClass: CustomHandler }
  ]
})
export class TranslocoRootModule {}

I can provide the details for TranslocoHttpLoader and CustomHandler if necessary.
Help would be appreciated.