I run Stellarmate X OS on Mele Quiter3Q (less than $200 + $50 for Stellarmate OS).
Mele runs well and I have two of them. Dual HDMI supported (I never used that though).
Mele comes with Windows preinstalled but you don't need Windows, just install Stellarmate over it.
I also tried and installed Ubuntu + KStars + Ekos on Mele.
It worked and was free but I prefer Stellarmate.

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