Welcome to my set cube of Kamigawa: Neon Dynasty.
The ratio is 4:2:2:1. I chose 2:1 Rares:Mythics so that Mythics didn't appear too frequently, since I seed the rarities in my packs. There is currently about 1 Mythic per 6 Rares, so a 1:7 ratio when pulling a Rare for it to be a Mythic (close to retail).
Commons are the limiting factor. There are 488 Commons. With 11 in each pack, you can make 44 packs, which supports up to 14 players in a normal draft, and 7 players in sealed.
The only "change" I've made to the set cube is to include an additional 2 dual lands per cycle (6 of each) to slightly improve the color fixing.
In the cube, I also include 40 of each full-art Kamigawa basic land, which brings the total cube count to 1000.