More Nice things:
https://lwn.net/Articles/495612/ Has an article on this years Linux Audio Conference.
Which info is like finding hens teeth might I add. In addition this is usually a paid for link.
As a one-off this particular article is free to read. Happy days.
(They also have a run-down of linux plugins here
https://lwn.net/Articles/501978/ which code glean some inspriration)
https://ccrma.stanford.edu/software have a few audio code goodies to get your head around.
(and they know a thing or two)
Time for bed.
