I love the designs by ÁlvaroMG but his DS design layout didn't work out for me. So I recreated it in a way to use the hybrid/top 2:1 ratio.
I made this with Retroarch in mind so results may vary if you use a different emulator.
1080p: (1920 × 1080)
1440p: (2560 x 1440)
Hybrid Layout: Ratio 2:1