I have ported Obxd (http://www.kvraudio.com/product/obxd---virtual-analog-synthesizer-by-datsounds) to Linux, I will release proper binaries for x86 and amd64 later but if you are very eager you can get it here https://github.com/orbitfold/Obxd and compile by going to Builds/Linux and running make CONFIG=Release then copy the .so from Builds/Linux/build to your vst folder. It's a pretty fucking sweet synth although very inefficient, but maybe we can do something about that.

--
"Cheshire-Puss," she began, "would you tell me, please,
which way I ought to go from here?"
"That depends a good deal on where you want to get to," said the Cat.
"I don't care much where--" said Alice.
"Then it doesn't matter which way you go," said the Cat.