Also, if you can it helps to get multiple people involved and do big batches, then freeze them for later.
Once a year (this Sunday actually) I get together with some family and friends and make a ton of pierogies
People come with premade fillings, and we divide up the work, some people making dough, others rolling it out, someone filling them, another person bagging them up, etc.
We also use something like this so we can bang out 18 pierogies at once, lay down a sheet of dough, spoon filling into them, another sheet on top, roll over it with a rolling pin and you’ve got pierogies.
Pretty much exactly what you probably think they are, I think they’re mostly a thing for people living off grid and maybe some RVs