A little Go lib for optimising .cast files produced by asciinema with new timing and prompt highlighting.
See https://docs.asciinema.org/getting-started/ for instructions for recording and playing a .cast file.
Then:
$ go install github.com/astromechza/asciinema-adjuster@latest
$ asciinema-adjuster example.cast '$ '
Adjust $ to be the suffix of your prompt statement.