Hello!
The so-called passive income means that apart from your main business, all other income is considered passive income. Of course, part-time work does not count, so you can know what is passive income. For example, if you buy Houses, antiques, stocks, funds, gold, silver and other investments that have room for appreciation.
As far as the current market is concerned, there is not much room for house appreciation, antiques are hard to come by, let alone stocks, which are all falling at this stage, let alone consider them. You can only consider funds, or gold or silver.
Of course, these are actually investments now. If you think it is too complicated, you can consider saving your usual income in a lump sum, or deposit it in Baifu Bao, Yu'e Bao, Wealth Management, etc. , hope it can help you.