2 decks. Easy. No redeal.
12 cards are counted out from the deck of 104 cards. The top card is opened. This is the reserve pile. The next 14 open cards are tableau piles. 8 foundations are placed above.
Aces are moved to the foundations as they become available.
The top cards of tableau piles, waste pile and reserve pile are available to play. You may build tableau piles down in suit. When one of the tableau piles is empty it immediately fills up with a card from the reserve pile.
When you have made all the moves initially available, begin turning over cards from the stock pile.
There is no redeal.