You say this pocket dimension connects to the internet, a la Matrix? I’d create a game with an in-game currency that looks the same as ours, and give it the same physical properties in-game as the real currency is for the region I’m in. I then would define that I am a billionaire with a bank account to match. I teleport in, withdraw my money in cash one suitcase at a time from the ATM that has an infinite cash supply, and then teleport out.
Same. I’ve found Minneapolis to be fairly good too, but I only visit occasionally for work.