McCLIM is not a domain of archaeology anymore; it has been seeing lots of development recently[0].
As for demonstrating it, two of the recent Online Lisp Meeting[1] videos utilize McCLIM: one of them describes Clouseau, an inspector application written in McCLIM[2] (running on the Mezzano OS as well[3], since McCLIM runs there too!) and the other utilizes McCLIM to visualize the functioning of Eclector, a portable and conforming implementation of the Common Lisp reader[4].
As for demonstrating it, two of the recent Online Lisp Meeting[1] videos utilize McCLIM: one of them describes Clouseau, an inspector application written in McCLIM[2] (running on the Mezzano OS as well[3], since McCLIM runs there too!) and the other utilizes McCLIM to visualize the functioning of Eclector, a portable and conforming implementation of the Common Lisp reader[4].
[0] https://github.com/McCLIM/McCLIM/graphs/commit-activity
[1] https://www.youtube.com/playlist?list=PLgq_B39Y_kKD9_sdCeE5S...
[2] https://www.youtube.com/watch?v=-1LzFxTbU9E&list=PLgq_B39Y_k...
[3] https://www.youtube.com/watch?v=cooTl4-9bhg&list=PLgq_B39Y_k...
[4] https://www.youtube.com/watch?v=3Yvv2XVBi58&list=PLgq_B39Y_k...