I built mine back in the beginning of 2016:
- https://smallformfactor.net/forum/threads/ono3-pelican-1430-to-s4-portable-vr-workstation.423/
- https://randomfoo.net/2016/04/14/building-a-battery-powered-pc
- https://randomfoo.net/2016/05/30/diy-backpack-vr-system
In 2022, the best option if you need untethered PCVR is to probably get something like a Pico 4 ($450), Vive Focus 3 ($1300), or Oculus Pro ($1500), and use Wifi 6 (or 6E for the Focus 3) w/ Viveport/Pico Streaming Assistant/Airlink for wireless streaming.
DIY
2018: https://www.reddit.com/r/buildapc/comments/9esrvm/making_a_vr_backpack/ 2019: https://www.youtube.com/watch?v=rt6QB81RFpA 2018-2020
- https://www.reddit.com/r/pcmasterrace/comments/g7jq57/custom_vr_backpack/
- https://smallformfactor.net/forum/threads/totally-custom-one-off-4-9l-brickless-i5-gtx-1070.8025/ 2019-2020
- https://hackaday.com/2020/03/03/evolution-of-a-backpack-vr-system/
- https://hackaday.io/project/167957-upgrade-ready-virtual-reality-backpack 2022
- https://www.youtube.com/watch?v=hHGaVrUrqxc
Commercial
Zotac VR GO 4.0 https://www.youtube.com/watch?v=hyQaTA6ylnM
Other options: https://windowsreport.com/best-vr-backpack-pcs/