Cryptos mining will be a better solution, which requires some money to start. The reward campaign costs more time and energy, and often involves fraud, which can easily hurt your enthusiasm for work.
But mining is the risk that the currency produced will be cheaper, and your payback period will increase. Especially considering the fact that the advanced GPU developer has transferred its machines to the production of a third-party order and all of its GPU rose in price. This will go on for a long time.
