Best to use certified seed potatoes so you don't introduce virus problems for anyone else growing potatoes in the area.

In case else is interested why, here’s an article about how aphids transmit viruses between potatoes, so it’s important to plant uninfected potatoes to keep the viral load down.

https://ahdb.org.uk/news/the-importance-of-testing-for-virus...

> and plant them everywhere you can

I guess you implied "at your home", but I do love the idea of guerilla gardening. Never done it with produce though, just flowers and trees.

Really good advice! You have a book in you my friend.