As part of maintaining this site I automate substack, because of this I am willing to offer substack automation as service.
These are some of the services I provide.
Creating a global index for the mobile app
Substack allows you to create a nice interface with multiple sections and a sidebar link. However, sections and the sidebar are not accessible through the mobile app instead you just have a stream of posts from the main page.
One work around is to create a pinned post which contains all your links and sections, and hiden pages for each section listing links. I have code to do this.
I can do this for you once for 30 dollars and will update this page monthly for 10 dollars a month.