A blog is a text file on a screen. There's really no need to do it on a proprietary system, you can literally upload a text file to your own host, but if you can't be bothered, somewhere like GitHub Pages.
You want an image? Here's a tag:
If the idea is that it doesn't look pretty enough - well, a Medium blog doesn't look like anything at all because I've closed it after closing the first three popups.
Here is a link to my own personal blog: https://files.esotericnonsense.com/public/blog.txt
You're reading this comment right now on a site that gets it right.