Further if this technology is open-sourced; can it be extended for use cases beyond that(Dual Motherboards sharing Compute power with low latency for working on a single process?); I know such solutions probably exist for servers and enterprises but i am talking about amateurs who don’t have 10K lying around for specialty hardware: If possible this seems like a low cost solution to mess around with
Currently there is support for a network connection over thunderbolt you can use as a basis. If you want to send other data without network encapsulation, you’ll need to write a kernel module for that.
https://www.kernel.org/doc/html/latest/admin-guide/thunderbolt.html#networking-over-thunderbolt-cable
https://christian.kellner.me/2018/05/24/thunderbolt-networking-on-linux/