And there is no LADSPA for Windows (is there?) The point was, as a plugin architecture (reading the blurb more and it doesn’t seem it would really help with audio-tracks anyway, just using Melodyne integrated in Renoise, which in itself could be interesting) that is tied to certain operating systems it would never be suitable as a replacement to a native function. And the desired capability it was hoped to bring to fruition has already been partially achieved for people willing to use additional software through ReWire/ReaRoute/JACK.
Don’t take this as me saying I consider the idea of implementing ARA as pointless. In honesty I couldn’t say I know enough about it and although I would be worries about the limited scope (currently???) and not sure how much effort it would take to implement for added functionality it would provide. Luckily these aren’t calls for me to make though hey