Sorry for your story. In those days open source is REALLY HARD. Put your github link here and we will support your project by starring you and spreading your project. You definitely need to fight back.
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Why would anyone encourage building such a tool, I can't fathom.
When I started you'd send a mail to the company directly about a position, you'd go to the office, have a short interview, meet the team and they'll let you know. That's it.
Now it's 2 rounds of HR bs, 3 layers of tech interviews, then meet the CEO/CTO/etc. And then references and then a final "chat". And you still can get ghosted at literally any step, even at the final cozy chat, just because of "vibes".
And throw in companies sending you leetcode even before talking to you and you can see why one would want to get through the bs.
I still stand about my favourite approach for tech jobs: intro and tech chat (1-2h) about your resume, what you'll be doing and anything you might have questions about (no challenges or stupid riddles). Then, if everything goes smoothly, you get a 2 weeks contract and you are in probation. If everything goes well, you get another contract for 3-6 months (up to you to accept or not) and then you get converted to permanent if everything went well for both parties.