Link to the original asciinema cast next to the GIF in [Getting Started](https://rustic.cli.rs/docs/getting_started.html). GIF is a low quality inflexible medium. One can't pause/resume, can't rewind/skip, can't speed up/down, and can't copy text. The asciinema cast generated from the [source](https://github.com/rustic-rs/assets/blob/main/getting_started/gettingstarted.yaml) template could be uploaded to asciinema.org and linked in the markdown file. Alternatively, the GIF itself could be replaced by [embedding](https://docs.asciinema.org/getting-started/?h=embed) an interactive asciinema player. See also: https://github.com/rustic-rs/docs/issues/2#issuecomment-2319473071