Re: [Trisquel-users] Free Software Bitcoin Mining

[chris]

I think it's possible to mine bitcoins with 100% free software using a  
special USB dongle. This is cost effective. I haven't verified this with  
certainty though. I asked someone else to do a quick check and it appears to  
be the case. I should have one or two of the devices shortly.

I believe they run about 1BTC to 2.5BTC or $100-250 USD.