meh sorry - I mean: working ASP.NET mono ecommerce (no, not aspDotNetStorefront - ASP.NET MVC app on green field). I started when Mono was in Novell's hands and hoped they will push harder for C#/Web/Linux but it didn't happen and now Xamarin is interested solely in mobile so it's even less reasonable to use Mono for web on Linux these days. Don't get me wrong I admire Mono guys but Monodevelop (even recent versions) is just not IntelliJ level IDE and Java with it is not so bad (especially Java8). Maybe I would go with ROR or Python but it's SPA (Dart on client side) so Java is just webservice (Dropwizard makes it frictionless)