EmulationStation-DE is a front-end application to manage all of your ROMs.
Introduction
EmuDeck installs EmulationStation-DE, which allows you to manage your ROMs through a single front-end application. It can either be used as an alternative or in tandem with Steam Rom Manager (an application that adds ROMs as game shortcuts to your Steam Library).
Website: https://es-de.org/
EmulationStation-DE's Wiki: https://gitlab.com/es-de/emulationstation-de/-/blob/master/USERGUIDE.md
EmulationStation-DE's FAQ: https://gitlab.com/es-de/emulationstation-de/-/blob/master/FAQ.md
Emulation-Station-DE Releases: https://gitlab.com/es-de/emulationstation-de/-/packages/
EmulationStation-DE currently scrapes art from https://thegamesdb.net/ and https://www.screenscraper.fr/
Read the Steam ROM Manager page to learn more about Steam Rom Manager and how it can be used in tandem with EmulationStation-DE!