Some override files, such as options.txt, should only be copied the first time a player plays a modpack.
Otherwise, their changes would be lost every time the modpack is updated.
This mod allows modpack authors to place files in the one-time-overrides directory
that will only be copied to their intended destination if the target file does not exist.
Example:
.minecraft
├── config
│ └── first_mod.toml
└── one-time-overrides
│ └── config
│ └── first_mod.toml # already exists in .minecraft/config -> will not be copied
└── options.txt # does not exist in .minecraft -> will be copied
As it does not use any Minecraft-specific APIs, the mod should work with any version of the game.
1.18.2 and 1.19.2 were tested.
The only dependency is fabric-language-kotlin. Fabric API is not required.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.18, 1.18.1, 1.18.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as one-time-overrides-v1.0.1.jar — drop this file into the mods folder
- Download size: 71 KB
- Download link checked 31 Aug 2026 — working
These come from our own check of the pack file, not from the source page.