My first try was using this script:
Query Scryfall + dump card names out for easy import into Moxfield
❯ python scryfall_search.py -q "f:standard f:penny usd<=1" --output-as-file "$HOME/desktop/out.csv"
Running Scryfall search on f:standard f:penny usd<=1 legal:commander
Found 1,197 total matches!
But when I tried importing the output csv in Moxfield, I got a bunch of No card name found on line x errors.