For Raspbian 32bit, I’m using this to install docker:
curl -fsSL https://get.docker.com -o get-docker.sh sudo sh get-docker.sh
You can have a look at the cheat-sheet I wrote for helping me deploy nodes on my RPi4B if you want:
You may find some useful tips on it.
But: Don’t use my script
storj.shunless you know what you’re doing: I’m not guaranteeing it works great! ^^’