Vermintide Mod Framework (VMF) provides an unofficial modding framework for Warhammer: End Times - Vermintide. It contains a Lua code injector that allows for custom code to be executed at runtime, a mod manager for enabling and disabling mods (Vermintide Mod Manager or VMM), a set of tools to create and edit mods and a basic API that lets mods interact with the game loop.
You may no longer get copies of trinkets (and hats!) you already own from the loot table at the end of a level (unless you've got them all).
Works for all (green, blue and orange) trinkets and orange hats (red hats are already unique). Now you can finally roll for that one trinket that you've been trying to get for >200 hours.
This has a minor incompatibility with the SalvageOnLootTable mod where attempting to salvage a trinket or a hat will fail and write an error to the chat. If you've already gotten every trinket\hat, this won't happen.
To install, put the .mod file from the archive into [folder with VMM]/Mod/mods and activate it in VMM. Click Refresh to get the mod to show up.