"...making their OS specific to their computers..." As a non-Linux open source project OS user, I am continually faced with driver deficiencies as a result of

"...making their OS specific to their computers..." As a non-Linux open source project OS user, I am continually faced with driver deficiencies as a result of hardware specs being under NDA. A recurring idea I have which I am here sharing for the first time (apologies!) is: why not just pick a single item of hardware and build an open source, free OS project around it? Why? Hopefully, more control, to the extent possible (notwithstanding Intel ME, etc.). Coreboot, support for as many peripherals a possible, etc. Most importantly, the elimination of the issue of hardware support and the notion of a list of "supported hardware". Why not? Performance, latest advances, etc. Hasn't this been done? Maybe. OpenWRT, etc.? But my understanding is that the use of Linux on this router was initially the non-public work of a company, Linksys, and the open sourcing by Cisco was neither anticipated nor intentional. How is my idea different? The project would be free, open source, but intentionally focused on a _single_ target. Big tradeoff, but maybe some interesting gains. To be clear, I like the idea of hardware that is more or less "OS agnostic", e.g., RPi and booting from SD card. But I am tired of watching volunteers struggle to keep up with the latest hardware (many thanks to the OpenBSD and FreeBSD contributors who write drivers for networking, etc.), or having to settle for binary blobs. Maybe I am just dreaming but I could forsee such a project potentially growing into a symbiotic relationship with some manufacturer if the OS developed a sufficiently large, growing user base. And these users were all purchasing a very specific item(s) of hardware, known to be supported by this OS. If you comment, please remember I am not a Linux user. And hardware support is not quite the same under BSD. As such, it is something I often have to think about and cannot just take for granted.