Notmuch Ado About Nothing
Addressing an innocuous question about the Notmuch email client’s default behavior took me surprisingly deep into the bowels of the package code. When the normal customization methods didn’t help, I realized it might be a good opportunity to live-code a solution.
The hope was that it might outline a recipe for reaching into the elisp guts of any library and getting Emacs to do what you want – with no specific prior knowledge. The reality is thirty minutes of fairly myopic yakshaving: