20,000 Years of Dance Music is a personal website maintained by ohdearcrypto (ohdearcrypto) and currently running on GitHub Pages using the Contrast theme.
GitHub Pages is a static web hosting service offered by GitHub since 2008 to GitHub users for hosting user blogs, project documentation, or even whole books created as a page. Contrast is a Jekyll theme for GitHub Pages.
GitHub provides hosting for software development and version control using Git. Since 2018 GitHub Inc. has been a subsidiary of Microsoft.