I was doing Rails and was hired away to do .NET. I'm wondering what
the state of Ruby/Rails is? I've heard it is in decline...
I'm asking because I want to build an app in my spare time. It would
make more sense to do it in C# because I could leverage what I know.
But Rails was my first love...I prefer to work in it. I just don't
want to spend time on something that people aren't interested in
anymore...
Do people have a sense of the demand/interest/support level that Ruby
and Rails has?
If you want to build something in your spare time, why would you use anything you didn't love?
There are plenty of people/companies working with Rails. The fact that it is in decline *for you* (you let yourself be hired away after all) doesn't mean that the industry is being lured away from the power and expressiveness of Ruby (and Rails) so easily.
I don't think RoR is in decline. Here in silicon valley, RoR is
gaining foothold with startup companies.
Java and C++ are traditionally favored by big corporations.