Now that the main network is not online, you can't dig coins. Test nets don't dig real money, just test nets. If someone tells you that his mining machine can dig Fil coins now, it must be cheap. On August 25th, the big miner test will be started, and there will be a reward of 4.25 million Fil coins, which is the real coin at this time. After the official launch of the main line in September, you can dig Fil coins. At present, the futures price is around 150, so you still know what to expect. The concentrator can be personal. After studying for more than a year, I still have some experience.