streamplot is a command line app that plots a histogram of streaming data.
$ git clone git@github.com:whatupdave/streamplot.git
$ cd streamplot && zig build
$ curl -sN https://stream.wikimedia.org/v2/stream/recentchange \
| sed -n 's/^data: \(.*\)$/\1/p' \
| jq --unbuffered --raw-output '.type' \
| ./zig-cache/streamplot