Thanks for the tip. I will take a look at it. Sometimes my laptop stays on for hours without using it so there is some CPU doing nothing that can be used. I assume it is a website that mines some cryptos so it's not a bad idea at all. I haven't heard at all about boid. Actually for a while I wasn't in the mood to search anything related to crypto. I was even thinking to power down, but didn't actually did it :)