Ask HN: Bloggers, how do you manage your content?

I would like to start a personal blog. I think Substack is a good option, but I would like more control over styling (potentially custom components) and want to host the blog on my own website.

I wanted to ask what the writing and hosting process is like for people who have a personal website and blog—do you just write markdown and then use a renderer?

I would like a kind of wysiwyg editor to see exactly how the content will appear once loaded. The issue with writing in a separate editor is that the line breaks, line lengths, font, etc. never appear how they will actually look. Thanks!