Truecrypt is followed by VeraCrypt which is now the standard. Don’t use TrueCrypt

Don’t forget the diarrhea drinking. How would he otherwise stay throat goat? (Grok said this)

Check out BOINC: https://boinc.berkeley.edu/

Raspberry Pi I’m not sure if it’s worth it. But in short you can advance some science with spare CPU hours. Should be possible to limit it so it doesn’t heat up and use just a bit of the cycles depending on other load…