Hello,
maybe someone know the magic cli argument for starting renoise with different config file/directory?
ive tried -C -config args but it shows error about “invalid color theme, import failed4”
My recollection from previous discussions about this is that you would need a script that managed copying/replacing config.xml.
There is no way to tell Renoise to load a specific Config.xml file.
pity, then i have to reconfigure for every instance i run for live setup ;|
Here a similar question is being asked, with solution for Windows:
https://forum.renoise.com/t/multiple-renoise-instance-with-different-preferences-setup/44153
On MacOS, it’s possible to take a copy of the entire application to get different configs -
but you can also use the approach used in the linked example (run Renoise from terminal)
I remember that i read somewhere that renoise is checking config file in the background (probably on forum) and though that this aproach is impossible 
thanks, ill try it when ill get home!
I was going to mention my Configgy tool. I forgot it was discussed in that other thread.
https://github.com/Neurogami/renoise-ng/tree/master/lua/com.neurogami.Configgy.xrnx