Mechanical fastening of the Tracker One

Pre-ordered the tracker one and I’m excited to start prototyping with it…

I do have a question what mounting holes/interfaces the tracker one enclosure has so as to be able to tethered to something like a round tube (bike perhaps?)

The Mechanical CAD drawings show mounting holes, but I’m not able to understand if those holes are on the inside and used for mounting the PCB, or whether this can be fastened to something else?

Those holes are for the screws that hold the cover (other side) to the base (this side) and can’t be used to attach something else easily, as they are deeply recessed.