Emacs 25.1 command of the day: xref-find-definitions. Language-independent jump-to-def! This has even replaced elisp-slime-nav for me.
miniblog.
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Ooh, difftastic is now listed on the official git website!
I'm experimenting with jj this weekend. It seems pretty nice so far, but the mental model is pretty different from git.
For example, there's no `checkout` command. You do `jj new ABC` to switch to a commit, which creates a new empty commit on top of ABC.
In praise of Tcl, and reflecting on syntax features for a good command shell: