A wonderful tutorial on adding random emojis to your bash prompt. Covers shell script arrays, escape sequences, and even the mysterious $PS2 variable!
miniblog.
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I've been playing with 'sliders' in difftastic, the classic diff problem where you highlight an adjacent value that is correct but weird.
I've taught difftastic to penalise sequences across newlines. This largely works, but it hurts perf (another degree of freedom to solve).
Key sequences can be memorable (e.g. `C-c m f' for calling my-function) but they're not as easily repeated. It's a tricky tradeoff.
For more elaborate sequences of numbers in Emacs macros, take a look at the tiny emacs package:

