If you don’t register a company, use an individual. Search Baidu for hardware and software. They are all available.
If you don’t know how to build a network, it’s best to find someone who can do it for you. For example, your friends, or find a specialized Internet company to help you. You have to analyze the prospects yourself. In fact, there are many people doing this. There is still demand. To increase the popularity, do SEO optimization. Go to some local websites and forums. Just wait for local publicity.