[ ] The name of your language makes it impossible to find on Google
WHen I search on a different web search engine for "c" with my default web search engine that says it respects privacy, I start getting results for the C language about 5 items down from the top -- Pretty Good. When I search on said search engine, the C language Wikipedia article comes up first -- Excellent. Said engine also auto-fills programming language when I start to type that after io. My "respectful" web search engine doesn't auto-fill quite as quickly. If my new and extremely poorly named programming language is popular enough, the web search engines are able to figure it out.
io is the 5th result even on https://search.marginalia.nu/
To be fair, it is quite heavily biased toward the tech sphere. I try to make it balanced, but even so, not a single result about the poor woman who caught the eye of Zeus.
This is why I use your search engine. Thank you
The problem with io is that it already means something in a programing context, so adding extra programming related keywords won't help to disambiguate the search.
EDIT: thankfully, on a Mac with Homebrew, you can just 'brew install io'.