One of the most un-Emacsy things I've done to my configuration is binding C-x C-g to 'find all files in this repo' command. It's really useful (right next to C-x C-f!), but binding C-g (quit) feels like bad practice.
Emacs doesn't judge though :)
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I've been learning some Common Lisp by writing some simple JSON munging programs. I'm sure it's not best practice — I should probably deserialise to CLOS automatically — but it's a nice way to get comfortable with the basics.
It feels weird deliberately ignoring helpers though.
I've been compilation buffers in Emacs recently and I really appreciate the error and warning counts shown in the modeline.
I've added the equivalent feature to deadgrep: it shows result counts! Really useful when you're doing big refactorings.
https://github.com/Wilfred/deadgrep
An interesting feature of the Grok TiddlyWiki interface: it has the sidebar on the right.
I see a sidebar on the left way more often, but arguably it makes more sense on the right for a wiki? The content is effectively more prominent.
https://groktiddlywiki.com/read/