So UGreen doesn’t void warranty when you install TrueNAS on it.
BUT.
UGOS is out of the picture after reading this.
However, the breaking point came when several Chinese products were found to contain spyware and malware that was hard-baked into the hardware and allowed for remote collection of user data. Numerous brands were implicated, and the fact that there is a degree of ambiguity between numerous Chinese brands in the eyes of the world—regarding how many of them cross over at the point of manufacture and how many of them are on the same production line filtering toward various brands—all added up to increased tensions and, eventually, several companies and organisations being barred from sale in the US.
The aforementioned spyware, when it has been recognised—have been hard-baked into the hardware components and physical controllers, which means that regardless of the NAS software you use, some of these devices still have the potential to contain security vulnerabilities.
despite instances of systems with inbuilt vulnerabilities decreasing all the time—they do crop up more frequently in products made in China than anywhere else in the world.
Therefore, the only device that would seem to work is TrueNAS mini-R which is way too expensive.
This is a pain. I’ll write to TrueNAS to see if they ever do pricedrops.