Substack Setup & Automation for 'Design For Abuse' Book Launch

A client is seeking an experienced freelancer to set up and automate their Substack account for an upcoming book launch. The project involves several key configurations to enhance subscriber engagement and content delivery. The successful candidate will be responsible for:

1.  Lead Magnet Post Creation: Creating a 'Subscribers Only' post on Substack. The client will provide the text for a 'PI Red Flag Checklist' to be included in this gated content.
2.  Welcome Email Configuration: Setting up the automated Welcome Email to ensure new subscribers immediately receive a link to the 'PI Red Flag Checklist' post.
3.  About Page Update: Updating the existing 'About' page with provided copy and strategically inserting 'Subscribe' buttons at both the top and bottom for improved conversion.
4.  Welcome Page (Overlay) Customization: Customizing the pop-up or landing page that non-subscribers encounter, specifically to highlight and promote the free checklist.

No coding required. This is a setup task within the Substack platform settings. Requirements for this project include proven experience with Substack's dashboard and its 'Gated Content' features. Native or professional English fluency is essential for clear communication and content accuracy.