Could you elaborate on the process of purchasing GPU nodes for
cryptocurrency mining? I'm particularly interested in understanding the steps involved, such as determining the most suitable GPU for mining, selecting a reputable vendor, ensuring compatibility with mining software, and any additional considerations I should make before making a purchase. Additionally, I'd like to know if there are any specific requirements or limitations I should be aware of, such as power consumption, cooling requirements, or any legal regulations I need to comply with. Thank you for your assistance in navigating this process.