Of course! You can just take out a spatula, smooth the dough with a wet hand so that there is a beautiful convex top, sprinkle it with water from a spray bottle so that it does not wind up, wrap it up with a film as tightly as possible.
And in the bucket itself, you can then distance in the oven, I put it in the oven so that the process goes faster - there is not enough patience and time, I have completely stopped sleeping, I bake, bake everything ...
As for the flour, add more than my recipe, your flour is probably damp in itself.
The dough should be like a thick viscous paste and, if desired, you can blind something from it with your hands, that is, it should not spread.
Do not worry if at first you overdo it with flour, the roof may crack, but it will not affect the taste, and long-term proofing will thin the dough.
And try this option without overnight proofing (you can also brew the malt, or you can throw it dry)
https://Mcooker-enn.tomathouse.com/index.php@option=com_smf&topic=102164.0there are detailed photos of what the dough looks like at different stages, and the main differences are the proofing time, the absence of wheat flour and not brewed malt, but dry malt.
Over time, the leaven grows stronger and takes less time to rise.If your sourdough is already strong enough, you can turn on the gluten-free heating only for 1 hour, and then in a closed oven the dough will have enough heat for the remaining rise time, which will decrease to a reasonable limit with each new baking, of course.