I’ve never tried that, but I’m willing. Another small batch brew in the offing is a spontaneously fermented Belgian. That will likely be a few gallons at most just to see what the local flora us like. Love the Belgians!
There is some stuff on line that shows how to do it. You really just need DME and water like you would do with a starter. Just use the sludge at the bottom of the bottle as the starter yeast instead of buying it. It might take an extra day to get going, but it’s no big deal.
I use a sanitized growler for the starter container.