arXiv has one of my papers on hold for a long time because their team couldn't believe I—someone without a CS degree—was able to create a programming language from scratch on my own.
replies(3):
2. It's also worthless.
3. arXiv is for scientific papers and not just random PDFs or project reports.
4. Creating a programming language can be science but something tells me that yours isn't.
I've seen solutions to the halting problem published on something called ResearchGate. I don't know anything about it but maybe you can upload there. Or just use your website or Google Drive, like how a normal person shares PDFs.
Personally I’d be fascinated to hear what your language was that warranted a paper submission to arXiv if you want to share.