Most managers are incompetent, lazy, and stupid. If you expect them to tell you what to do, you will have a lot of frustration. Because they don't know and they don't want to know. The solution is simple: start planning everything yourself and show them your plans. In most cases, they will be happy to leave you alone and let you do what you want. If it will be open-source, you will have a double win.
The video is here: https://youtu.be/CmUzNPqCF4s