$: diceware --count 5 output: $: xxxxxxxxxxx (password)
Absolutely!! Open-source is based on collaboration! Fork the repository, work to your hearts content, and submit a pull request once you think it's ready.
So far, Deno feels like a major upgrade from Node. Top-level await + typescript out of the box feels almost magical. The other major improvement I've noticed that isn't really being mentioned is the standard library. Node obviously has a set of standard features, but unlike most server-side languages it lacks a dedicated standard library. In Deno, the stdlib is not only well defined, but really robust for where the language is in its lifecycle.