Ask HN: Is there any good use for old Bitcoin miners?

They're probably ASICs, and therefore not reprogrammable or reusable for another purpose. See if there are any on ebay, if not, they're probably not worth much to anyone.

They're all ASICs. Most were $10k+ we made our money back but I'm not about to part with them for $50.

You can keep them for $0 ;)

Fork BTC and use them to get that network going.

You may be able to repurpose them to crack passwords if you have any interest in that.

Are there any F/OSS for this? I imagine you'd have to run the gross equivalent of a mining pool server.