How to uniquely identify computer (mainboard) using C#(.Net/Mono, local application)?

Edition. We can identify mainboard in .Net using something like this (see Get Unique System Identifiers in C#): 

using System.Management;
...
ManagementObjectSearcher searcher = new ManagementObjectSearcher("select * from Win32_MotherboardDevice");
...

But unfortunately Mono does not support System.Management. How to do it under Mono for Linux? - I don't know :(

c# .net mono
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