Composer is a general-purpose Fabric library mod developed under Project Codex. It provides shared systems, utilities, and architectural building blocks used across multiple mods, with a focus on clean APIs, long-term stability, and multi-version support.
Composer does not add gameplay content on its own (except for a plushie). It exists to support other mods at runtime and during development.
Feel free to skip this part, it's just here for the people who are curious.
Composer began its life as a small utility mod providing some tools for targeting that I (LilBroCodes) made a while ago for myself. After using that version of the mod though, it became apparent that it's code quality and API schema was - let's just say - horrible. I had no idea how to actually do proper APIs, per-usage configs or anything, so the whole thing was barely usable. That's where Composer Reloades came in.
I set out to rewrite composer from the ground up (which granted, didn't take much time) when I started working on some of my larger scale mods, and ended up not just rewriting the targeting but adding along a lot more useful things. Over time, Composer Reloaded grew to be an invaluable utility almost - if not - all of my mods used, and was growing in scope constantly.
That is when I decided that Composer Reloaded was way too long of a name, and I was way too unprofessional to be the sole owner, so since then Composer has been under the Project Codex organization. I've since learned better API schemas, maintaining versions and all that, so Composer should be a library on a professional enough level for anyone to be able to use.
You can download Composer from Modrinth.
If none of your mods require it, you don’t need to install it - it doesn’t add any gameplay content on its own, only
functionality for other mods.
Although, if you really want the LilBro plushie then feel free to install Composer just for that :P
Warning
If you do use Composer in your own mod, or want to include it anyway, you must also install a compatible version of Cardinal Components and Fzzy Config. For more info, look at the dependencies of the specific version on modrinth.
If you want to use Composer as a library in your mod, add the Composer Maven repository and Cardinal Components repository to your build file, then add Composer as a dependency.
Replace (latest_version) with the latest Composer version compatible with your Minecraft version.
Gradle (Groovy DSL) - build.gradle
# gradle.properties
composer_version = (latest_version)// build.gradle
repositories {
// Before 3.0
maven {
name = "Composer Maven"
url = "https://dl.cloudsmith.io/public/lilbrocodes/composer-reloaded/maven/"
}
// After 3.0
maven {
name = "Composer Maven"
url = "https://dl.cloudsmith.io/public/project-codex/composer/maven/"
}
// After 3.0.4
maven {
name "Constructive"
url "https://dl.cloudsmith.io/public/lilbrocodes/constructive/maven/"
}
maven {
name = "Cardinal Components"
url = "https://maven.ladysnake.org/releases"
}
maven {
name "Fuzzy Hamsters"
url "https://maven.fzzyhmstrs.me/"
}
}
dependencies {
// <2.0
modImplementation "org.lilbrocodes:composer-reloaded:$composer_version"
// >=2.0 <3.0
modImplementation "org.lilbrocodes:composer-reloaded:$composer_version+mc$minecraft_version"
// >=3.0
modImplementation "com.codex:composer:$composer_version+mc$minecraft_version"
}Gradle (Kotlin DSL) - build.gradle.kts
# gradle.properties
composer_version = (latest_version)// build.gradle.kts
repositories {
// Before 3.0
maven("https://dl.cloudsmith.io/public/lilbrocodes/composer-reloaded/maven/") {
name = "Composer Maven"
}
// After 3.0
maven("https://dl.cloudsmith.io/public/project-codex/composer/maven/") {
name = "Composer Maven"
}
// After 3.0.4
maven("https://dl.cloudsmith.io/public/lilbrocodes/constructive/maven/") {
name = "Constructive"
}
maven("https://maven.ladysnake.org/releases") {
name = "Cardinal Components"
}
maven("https://maven.fzzyhmstrs.me/") {
name = "Fuzzy Hamsters"
}
}
dependencies {
// <2.0
modImplementation("org.lilbrocodes:composer-reloaded:$composer_version")
// >=2.0 <3.0
modImplementation("org.lilbrocodes:composer-reloaded:$composer_version+mc$minecraft_version")
// >=3.0
modImplementation("com.codex:composer:$composer_version+mc$minecraft_version")
}Maven - pom.xml
<repositories>
<!-- Before 3.0 -->
<repository>
<id>composer-maven</id>
<url>https://dl.cloudsmith.io/public/lilbrocodes/composer-reloaded/maven/</url>
</repository>
<!-- After 3.0 -->
<repository>
<id>composer-maven</id>
<url>https://dl.cloudsmith.io/public/project-codex/composer/maven/</url>
</repository>
<!-- After 3.0.4 -->
<repository>
<id>constructive-maven</id>
<url>https://dl.cloudsmith.io/public/lilbrocodes/constructive/maven/</url>
</repository>
<repository>
<id>cardinal-components</id>
<url>https://maven.ladysnake.org/releases</url>
</repository>
<repository>
<id>fuzzy-hamsters</id>
<url>https://maven.fzzyhmstrs.me/</url>
</repository>
</repositories>
<dependencies>
<!-- <2.0 -->
<dependency>
<groupId>org.lilbrocodes</groupId>
<artifactId>composer-reloaded</artifactId>
<version>${composer.version}</version>
<scope>compile</scope>
</dependency>
<!-- >=2.0 <3.0 -->
<dependency>
<groupId>org.lilbrocodes</groupId>
<artifactId>composer-reloaded</artifactId>
<version>${composer.version}+mc${minecraft.version}</version>
<scope>compile</scope>
</dependency>
<!-- >=3.0 -->
<dependency>
<groupId>com.codex</groupId>
<artifactId>composer</artifactId>
<version>${composer.version}+mc${minecraft.version}</version>
<scope>compile</scope>
</dependency>
</dependencies>
Add the following property to your <properties> section:
<properties>
<composer.version>(latest_version)</composer.version>
</properties>