Make cli run under pyodide-cli?

[joemarshall]

It seems weird to have the CLI for this run with pyodide-lock not as a subcommand of pyodide, e.g. pyodide lock or pyodide lockfile? pyodide-lock has minimal dependencies (typer and rich)?

[rth]

Yes, absolutely it's planned. Mostly stuck at the API design step so far #4