At higher levels (Principal, Distinguished) you often have to show external contributions to the industry, and some companies count open source towards this.
I can honestly say that my profile has been a huge benefit to my career, but that's more due to 20 years of open source contributions and a very customized (and automated) profile page.
It never served a a cheat-code, or a skip-the-line or any such goodness. What it did was serve as a conversation starter, “I see project Y in strange language X. What is the story there?”
That’s your cue to sell yourself, your skills, your experience, etc.
I could never know, but perhaps having it also got me on the short-list for an interview to begin with?
I would say GitHub has featured in at about half of my interviews.
I can share my random side projects... but what is the use of that? They aren't that impressive compared to my actual work.
My fear is that I will have to put lots of advertising into myself for things that don't describe what I actually do.
Do what you want with that info.
Same as for linkedin
Particularly in crypto where people want to quantify “community” and star count is a crude but very available way to do that.
It is safer and easier to use a one size fits all interview.
Most of the interview is getting the candidate to show me that they know _something_ in depth and I'm not super concerned with exactly what it is. (If they've learned something in depth, I expect they can also learn the details of what we do. :) So the exact same questions to every candidate serves no one's interests.
However, what you're describing sounds reasonable to me - you're offering the same overall interview structure, just tailoring the question to delve more into someone's bespoke experience. That's a hell of a lot more work than a one size fits all (ala leetcoding style) question - kudos to you.
that's probably true for western europe. compared to the US there is significant less open source projects,businesses and developers.
I personally have contributions to an open source project because I was employed by it for around 3 years but I generally spend my free time on hobbies other than writing code.