Tested ASIAIR mini with X-T30 and it is NOT supported. ASIAIR does not even recognized that a camera is connected. But this is expected because Fujifilm X-T#0 series (T10, T20, T30, T50) and X-E# series (E3, E4) do not support USB tethered shooting with any device.
The X-Pro (X-Pro2, Pro3), X-H# (H1, H2) and X-T# (T2, T3, T4, T5) series do support tethered shooting, but I have not tested them with ASIAIR.