Interesting results, indeed.
He trades
ShortIronCondor (it has 4 legs).
But I think a
ShortStraddle (or
ShortStrangle) is easier to trade (b/c this has only 2 ShortLegs and no LongLegs), and should give a better result, IMO.
Ie. for 0DTE with such liquid options, buying the protective outer LongStrikes is IMO unnecessary when protective StopLimit order(s) get used --> saves much money, therefore also the result should become much better.
Would be interesting to see some backtest or simulation results comparing both strategies on 0DTE.