[short notice] 

European Lisp Conference
Keynote (9:30am Toronto time, May 4) - Nada Amin "Keynote: Staged Relational Interpreters: Running Backwards, Faster

https://european-lisp-symposium.org/2021/index.html

2 chat rooms after conference (car and cdr):
https://els2021.common-lisp.net/everywhere/

pt