Docs theme - homepage with custom layout

[stvnbash]

How can I configure my project to achieve something similar to the nextra.site website with a homepage that doesn't use markdown but still has the Nextra navbar at the top? I was able to configure something similar to nextra.site/about in my project with having the docs left-navigation column hidden, but I am not sure how to setup my project for a homepage with a custom layout.

Thanks in advance!