How do I update a Unity Game without using play store or apple service

I am working on a Unity game app which will be available only on my website. I have a collection of games and I want to add new games later. I want to check for an update at app start and update my app if new update is available.

I am using addressable for game download since all the games inside are my own but addressable does not update scripts so how do I work around this problem.
So, How do I achieve In-App Updates on the app during App Start?

I have been facing the same issue. Someone please help me