diff --git a/README.md b/README.md
index f5a9b69..e6d2d3f 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,19 @@
 # Hlæja {library}
 
 {description}
+
+### Global gradle properties
+
+To authenticate with Gradle to access repositories that require authentication, you can set your user and token in the `gradle.properties` file.
+
+Here's how you can do it:
+
+1. Open or create the `gradle.properties` file in your Gradle user home directory:
+  - On Unix-like systems (Linux, macOS), this directory is typically `~/.gradle/`.
+  - On Windows, this directory is typically `C:\Users\<YourUsername>\.gradle\`.
+2. Add the following lines to the `gradle.properties` file:
+    ```properties
+    repository.user=your_user
+    repository.token=your_token_value
+    ```
+   or use environment variables `REPOSITORY_USER` and `REPOSITORY_TOKEN`
diff --git a/build.gradle.kts b/build.gradle.kts
index 9eba245..f98b69a 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -10,10 +10,6 @@ java {
     }
 }
 
-repositories {
-    mavenCentral()
-}
-
 dependencies {
 }
 
diff --git a/gradle.properties b/gradle.properties
index 6604987..91e878c 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,2 +1,3 @@
 kotlin.code.style=official
 version=0.1.0-SNAPSHOT
+catalog=0.10.0
diff --git a/settings.gradle.kts b/settings.gradle.kts
index e6d0470..8d6fb51 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1 +1,37 @@
+import java.lang.System.getenv
+
+fun getProperty(property: String): String = extra[property] as String
+
+fun retrieveConfiguration(
+    property: String,
+    environment: String,
+): String? = if (extra.has(property)) getProperty(property) else getenv(environment)
+
+fun hlaejaRepository(repositoryHandler: RepositoryHandler) {
+    repositoryHandler.maven {
+        url = uri("https://maven.pkg.github.com/swordsteel/**")
+        name = "GitHubPackages"
+        credentials {
+            username = retrieveConfiguration("repository.user", "REPOSITORY_USER")
+            password = retrieveConfiguration("repository.token", "REPOSITORY_TOKEN")
+        }
+    }
+}
+
+dependencyResolutionManagement {
+    @Suppress("UnstableApiUsage")
+    repositories {
+        mavenLocal()
+        hlaejaRepository(this)
+        mavenCentral()
+    }
+    versionCatalogs.create("hlaeja").from("ltd.hlaeja.catalog:hlaeja-version-catalog:${getProperty("catalog")}")
+}
+
+pluginManagement.repositories {
+    mavenLocal()
+    hlaejaRepository(this)
+    gradlePluginPortal()
+}
+
 rootProject.name = "hlaeja-library"