Lifelongstew & I wrote a script for AFK fishing using a Linux utility called xdotool to do the key presses & mouse clicks etc. which is a system I used way back when to run long distances on the nether roof & AFK overnight etc.
Reading the rules (for the first time in years) I see external programs are no longer permitted so extended AFK (beyond the game inactivity timeout) is effectively banned?
Makes sense - continuous farming is an advantage. Not arguing. Just making sure I know the limits.