@amadeus

BTW, your FAQ mentions that LV2 does not have mac/Windows support, which is not true.

LV2 works on all those platforms (and *BSD) as well. It's also ISC licensed.

As for OS to use. An older one is preferable. When compiling a plugin on a recent system it may not run on older ones (libc compat). The OS should not matter much since (as with other platforms) plugins must be statically linked.

And yes, I have helped some vendors in the past to sort thing out. e.g. elephantdsp.com