This did not work 100% right away for me like this (I’m on rc2 image).
It seems that /usr/local/lib/lv2 is not in the path where the lv2 plugins are searched for.
To get it working, after the install script I had to create a symlink:
ln -s /usr/local/lib/lv2/alo.lv2
Only then, did the ALO plugin show up in the webconfig and I could enable it there.
Comparing with other install scripts, it would be probably be a good idea to create this symlink at the end of the script (or widen the search path for lv2 plugins to include /usr/local/lib/lv2).
Edit: I tested it and after starting the transport it does work.
BUT, I won’t be using it for the sole reason that it’s mono only, and this should not be a restriction introduced by a looper or any recording device imho.