Jan/nix-modpack
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nix-modpack/README.md
Jan-Bulthuis a093625c28 Updated naming to include the word Modpack
2025-05-18 11:07:29 +02:00

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nix-modpack

Create a modpack server or MultiMC client from a packwiz toml.

Creating a server

A server derivation can be created as follows:

nix-modpack.packages.${system}.mkModpackServer {
    packUrl = "<url to pack.toml>";
    server = nix-minecraft.legacyPackages.${system}.${server}
}

When this is added as a package to a flake, it can be started with nix run.

Creating a client

A client derivation can be created as follows:

nix-modpack.packages.${system}.mkModpackClient {
    packUrl = "<url to pack.toml>";
    gameVersion = "<minecraft version>";
    loaderUid = "<loader identifier>";
    loaderVersion = "<loader version>";
}

To use it you need to nix build it before importing the resulting modpack.zip into prism launcher.

The loaderUid depends on the modloader, for NeoForge it is net.neoforged. It can be found experimentally by exporting an empty instance with the loader installed from prism launcher and inspecting the mmc-pack.json inside of it.