UP Big Boy 4014 Garry's Mod by GasHazard24 on DeviantArt

Garry's Mod Game - Keymailer

Steam Community :: Guide :: How To Add Custom Background Main Menu in Garry's Mod

Steam Trading Cards - Garrys Mod Level 3 Badge Crafting

Garry's Mod Dark RP runs great on Deck! Back buttons work nicely for the extra keybinds. : r/SteamDeck

Install Garry's Mod Addons to Your Steam Client

Steam Workshop::Steam Deck

Steam Community :: Guide :: Setting Up a Dedicated Server on Linux

Garry's Mod (Beta) On Steampipe: Experimental Linux Support – Linux Game Cast

I found out that you can download Garry's Mod 10, 11 or 12 for free if you own the current version in your Steam Library. Fired up Gmod 10 and made this. : r/gmod

How to Add Workshop Collections to Garry's Mod