An uphill battle but certainly not impossible. The problem with VST is hosting the plugin. We have a nice lightweight solution for lv2 with jalv. For VST we’d need to mangle about with Carla, which isn’t so svelte, or write something from scratch.
People do convert vst’s to lv2 using frameworks like DISTRHO.
But this looks like a standalone application that will compile on Linux so probably avoid VST / LV2 and try to host application - though not sure the workflow that fits inside Zynthian.
Imagine you can load audiotracks on the pads and adjust tempo and pitch … Ohhhhhh yessssss!! I know you like it. And the integration of this tool seems really feasible.
In fact we should consider adding this to the current audio player too