Just as an aside… that DSP prototyping environment still runs today as well as it did back in 2008 (perhaps a bit faster on todays CPUs). That is one thing about Common Lisp that I value highly. I have code that I wrote almost 30 years ago and have never needed to change, while it is still very much in use today.
That is indeed a very valuable property of Common Lisp.
I contrast that experience with programming in Rust just a year ago, while the entire language was changing beneath me almost monthly.