@binyamin Interestingly, Google and other search engines will show subdomains of a website as separate results, which is good to ensure your own properties are on the front page if for example you use "blog.binyam.in".
However, you'll get more canonical traffic and backlink ranking if everything is hitting one domain. Doubly so for IndieWeb/microformats2 markup.
You'll have to maintain two separate sites if you go with the former, but I understand the content vs. playground angle.
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