Haha this is my blog -- its pretty new. I agree it's readability is less than ideal -- going to change it at some point. HTTPS as well probably at some point. Its been an experiment for me doing everything by hand. The entire blog is a large single Rakefile using Markaby :)
for what is worth, I actually liked the shaded links, they made me smile :)
check out certbot + install certbot renew into crontab. Get the python3 variant the "native" package is outdated and removed from newer systems.
Even just disabling CSS makes it readable. For HTTPS, I think that (like someone else mentioned) it should be made optional (at least for read-only access to public files) rather than mandatory.