Thanks so much for taking a look!
1. We are playing around with the idea of allowing users to provide their own css file. This would not change the content or structure of the blog / posts, but would allow end-users to change the styling.
2. Once you upload a post, it'll stay up even if you run `scp` that doesn't include the file. See https://prose.sh/help#blog-upload-single-file for more details.