Ksm successor

It is my understanding that
- ksm starts before nickel and if it starts koreader then it's is started instead of nickel
- other alternatives like kfmon and nickel launcher can start koreader from nickel.
- ksm has been discontinued
I want the first behaviour. Just koreader. Nothing else.
Is there a successor to ksm then?
This is for a clara hd and a forma, to read epubs pdf and Mangas from my opds server.
Thanks for your advices