examples are not always up to latest PyScript, unless needed, we ship 0.26.1 though and we were not aware of the Pyodide release (shame on us).

packages are those provided by pyodide but if you have a special place for your package you can always add it to the config.toml, example

packages = [
  "https://cdn.holoviz.org/panel/wheels/bokeh-3.5.0-py3-none-any.whl",
  "https://cdn.holoviz.org/panel/1.5.0-b.2/dist/wheels/panel-1.5.0b2-py3-none-any.whl"
]

This works well for panel and I don't see why it wouldn't for your project ... however, we don't have any way to infer packages thta are not already available via the interpreter, so if that's not part of pyodide default distribution, I am afraid you need to spread the word a bit around on how people can get your package in PyScript too.

I hope this answer makes sense and thank you for the interest in our project, feel free to ask anything else/more if needed.