I've switched form Retropie to Lakka and i'm loving it. Games runs way better. now i'm converting my retrorama theme to Lakka/RetroArch XMB. Still WIP, but i'm loving the result so far :
Lakka: A RetroPie Alternative for your Raspberry Pi, ODroid or other similar system. - YouTube
Lakka, sistema operativo para montar una retro-consola
Major release brings Wi-Fi and simplified interface to Lakka : r/emulation
News Round-Up: Play! PS2 Emulator forced to run on the Switch and L4T Lakka released; Reddit user creates cool PSVita Bootscreen alongside ElevenMPV 1.2.0 being released and first 1TB microSD card available
Distribution Release: Lakka 4.0 (DistroWatch.com News)