https://www.theverge.com/2022/11/30/23485732/sony-mocopi-motion-capture-metaverse-vr-avatar-announcement-price https://www.theverge.com/2022/11/30/23485732/sony

https://www.theverge.com/2022/11/30/23485732/sony-mocopi-motion-capture-metaverse-vr-avatar-announcement-price https://www.theverge.com/2022/11/30/23485732/sony-mocopi-mot... Not open source but pretty cheap and does 80% of what you want, especially if you combined it with this.