Free tiers
This website runs for free on the fantastic Fly.io platform.
Writing a post is as easy as me committing a markdown file to the repository. Fly.io handles the deployment, as a containerized application, through Github actions.
With platforms such as Fly.io, Planetscale and Upstash who all offer generous free tiers, it has never been easier (and cheaper) to build full-stack applications on the web.