CSI camera on Raspberry Pi (legacy)

CSI Camera V2 as of Sat 23 Mar 08:47:12 UTC 2024.
Example for older operating systems (those with command raspistill):
- copy
csi-legacy.distas.envif you want to use Raspberry Pi camera - in copied file
.envreplacetoken-change-mewith the value of the token you copied - in copied file
.envreplacefingerprint-change-mewith some random value, which is alphanumeric and has at least 16 chars (and max of 40 chars), for example set it tofingerprint-myprinter-camera-1 - save edited file
.env
Next, test config.
Real world scenario
Some older Rpi 3 with older Debian with basic cam: