How can one stream from an Oculus and include an image of self in front of a green screen? Are there any tutorials?

I am very new to this and have no idea how to do it, I know it’s possible. I’ve looked up tutorials but am so confused about capture cards and which program to use. I don’t have a Kinect, I just have a regular computer camera. Can I use my phone by chance and bypass the computer or do I have to use a computer? Do I need a capture card? Which program is most user friendly? So many questions. Idk what I’m doing. Pls help.