I develop in .NET almost exclusively for the past 10 years but have used .NET since 1.0. Along the way I've used RPG, Ruby, and a little Python and enough PHP to write a WordPress plugin.
In what little time I have I've been looking at functional programming. At least, looking at what is being added to C#. I have a few books on F# but have thought about getting on the Rust bandwagon.
I'm a big fan of PowerShell and have been proselytizing/advocating for years. Besides, you going to use Bash?
There's also some making stuff here and there. I've upgraded some 3d printers and build a few props that move or light up.
Credit to Len Peralta for the Gort avatar.