A holder for my Insta360 Ace Pro2 camera used for its quick attachment to the backpack strap in the Peak Design Capture holder.
Variant A - "T" profile with GoPro mount and printable plate
Variant B - "T" profile with 1/4 photo thread

For the final assembly, I also used for both variants:
- GoPro Knob M5 hexagon (@Arduiblog) https://www.printables.com/model/606348-gopro-knob-m5-hexagon-bolt-or-screw

….and for variant A:
- Peak Design GoPro Mount (@Mrtritop) https://www.printables.com/model/253859-peak-design-gopro-mount