Umbraco V9

I have an issue with Umbraco Examine as LuceneIndexCreator and IUmbracoIndexesCreator is not available in v9. We can use them in v8. I have updated to UmbracoExamineIndex, IUmbracoContentIndex, IDisposable. This would work in v9. However, a bit of code may need rewriting. is this something you could help with?
Ex: https://aaronsadler.dev/2021/august/07/how-to-create-a-custom-index-in-umbraco-v9/