Edit footer, add pagination in Marfa theme

I’d like to remove the search bar from my footer. How do I do this at zachbarocas.com?
I would also like to see previous/next at the bottom of my pages. I can’t find my way to where I might make these changes.

If you click “design” on the Micro.blog website you have options to modify your theme and settings. Without knowing your exact theme (and your blog URL), I can’t give more precise instructions.

Thanks, Jason! Couldn’t quite find what I was looking for via “design.” I’m using Marfa, no modifications. URL is zachbarocas.com. I’m used to WP, though, so I’m not surprised I can’t find it.