Documentation contribs for SLIME (the Superior Lisp Interaction Mode for Emacs)
I would say not very much. The Emacs packages I've developed (slime-doc-contribs and this), all use this DEF-PROPERTIES module that is accessed via SWANK for reflection on CL definitions.
slime-doc-contribs: Documentation contribs for SLIME (the Superior Lisp Interaction Mode for Emacs)
1 project | reddit.com/r/planetemacs | 5 May 2021
slime-doc-contribs: Fancier SLIME documentation buffers
1 project | reddit.com/r/lisp | 24 Apr 2021
Is there a package like helpful for Common Lisp editing in emacs?
2 projects | reddit.com/r/lisp | 11 May 2022
quicklisp-systems: Search, browse and load Quicklisp systems from Emacs
1 project | reddit.com/r/lisp | 26 Apr 2021
Is Portacle Being Maintained?
4 projects | reddit.com/r/Common_Lisp | 14 May 2022