Did you look at using something like Qt ? Or did you want something in C# ?

curious to understand your technology choice

It appears to be a wrapper around a webservice that runs in process. So I assume the webservice is something like .NET and so they stuck with C# for the GUI bits.

interesting - strange choice of architecture. Is there an advantage to something like this ?

Always happy to find other startups built on C# :) This GUI framework is intriguing as well.

It's written in C# or .NET? ("Cross platform GUI framework for desktop and mobile applications in .NET")

Would it be possible to use other languages with Eto?

Yes, Eto.Forms supports any .NET language. (;