miniblog.

GNU Make defaults to a single worker, and newer build tools (e.g. ninja) default to the number of physical CPUs.I wish there was an option for 'leave me a little bit of my machine to do stuff'.

Trying the nix CLI today, and I'm seriously impressed with the formatting of its --help output. Indented warnings, italics, bullets, even adding a left border to code snippets! It's a nice reminder to take full advantage of terminal features to help the reader.

What are the most popular languages that have used an AST walker for their implementation? I know Ruby used to do this, but there must be others. (I'm interested in the lowest PL speed that users will tolerate if you have awesome features.)