Flexible hours: YES

When it comes to custom API development for automation, the flexibility of hours can vary depending on client needs and project deadlines. In many cases, you can set your own schedule and work on tasks when it's convenient for you. However, there may be instances where clients require work to be completed within specific time frames, which could impact your schedule. Online discussions suggest that while the work can generally be flexible, there are occasional time-sensitive projects that may require you to adjust your availability. It's important to communicate clearly with clients about your preferred working hours to manage expectations. Overall, the flexibility of hours in this side hustle can range from high to moderate depending on individual projects.