devdigest // dot net
А вот еще один вариант кроссплатформенного UI на .NET

https://www.hanselman.com/blog/CrossplatformGUIsWithOpenSourceNETUsingEtoForms.aspx
Hanselman
Cross-platform GUIs with open source .NET using Eto.Forms
This is one of those 'Did you know you could do THAT?' Many folks have figured ...
teleg.eu/s/dncuug/504
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