All these old threads… stop looking at them.
THERE EXISTS A WAY NOW:
http://xrns-php.sourceforge.net/xrns2midi.html
HOWTO FOR WINDOWS:
https://forum.renoise.com/t/xrns-php-using-windows/20469
HOWTO FOR OS X:
https://forum.renoise.com/t/xrns-php-using-bash-on-os-x/20468