Earlier, this website was based on Sphinx, now I have migrated it to Hugo.
The old website was minimalistic static site generated with Sphinx / ReStructured text.
As you could see, I never found time to update the website, neither could update sphinx / nor update the theme. It was a choice to try something new, or try to update the site with sphinx. As of now, giving Hugo a chance to create the website.
After all, purpose is the same, create a static site, and generate / update it as and when needed.