Retropie 4.0 PSX Test Raspberry pi 3 PlayStation One - YouTube
RetroPie Easily Make PS1 Games Look Better - YouTube
Pi 3 in a PS1 w/hard drive, usb hub and miles of wire - RetroPie Forum
Make Your Own PlayStation Classic - Hackster.io
Amazon.com: PS1 Retro Plug and Play Video Game Console Retropie Raspberry Pi 4 32GB Super Emulator Built-in 7000 Classic Games Support PS1 PSP N64 SFC NES Etc 50 Simulators : Video Games
PS1 Controls on Raspberry Pi RetroPie Explained - YouTube
Amazon.com: PlayStation 1 on RetroPie! 257 Amazing PS1 games for Raspberry Pi : Video Games
Installing RetroPie/EmulationStation Onto Raspberry Pi 2 Model B+ (Playstation 1 Emulator Included!) : 10 Steps (with Pictures) - Instructables
My Console & Game Themed Bezels for Retroarch - RetroPie Forum
Upgrading psx graphics through retroarch - RetroPie Forum
PSX Retropie - Anwilc
Trouble Setting up the PSX - RetroPie Forum
How to Play PSX Games on Retropie? (step-by-step with pictures) – RaspberryTips
PSX Retropie - Anwilc
New theme] playstation - RetroPie Forum
RetroPie - PS1 Case Mod : r/RetroPie
Raspberry Pi 4 in a PSOne Console (link to gallery in comments) : r/RetroPie