What a great talk. My introduction to programming as a kid was also writing Runescape bots, using some Delphi tool called SCAR [1] (together with writing plugins for my Counter Strike 1.6 server using AMX Mod X). Start at Varrock bank, wizard hut, dialogue picker, teleport, find out where you are, mine, mine, mine, teleport back, back to bank, deposit, and again.

My great essence mining bot contraption horribly broke when Runescape started randomizing all colors slightly, after making a paltry amount in dollars selling the essences.

[1] https://scar-divi.com/