Mappable envelope plug-ins? – Csound Noobs

Hi,

I was wondering if there was any way to create “MIDI plug-ins” like Max/MSP with Cabbage. I saw that it is possible to export Csound code to AU MIDI Effect from Cabbage, but I don’t know what is its use.
Being able to make a rspline LFO or transeg envelop that could be mapped to any parameter (like with Max for Live) would be life changing.
I know I could use Max for Live for that, but I don’t like to mix tools and I don’t know Max enough, learning Csound is already time consuming.

Thanks !