TIL git-log can show multiple heads when --all is too much to see what's going on: https://stackoverflow.com/a/26784584/509706
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I'm trying to decide what program I should show on the home page of my PL.
Hello World is too simple to show much syntax. Fibonacci is OK but the reader may not know what print(fib(10)) should show.
Maybe print(greet("World")) is better? It gives you a function definition at least.
Ooh, difftastic is now listed on the official git website! https://git-scm.com/tools/command-line
It is remarkably hard to escape command line arguments safely on Windows, and the standard libraries of multiple languages have needed patching: https://flatt.tech/research/posts/batbadbut-you-cant-securely-execute-commands-on-windows/