Add a new task to essentials, and update the dependency version of libz

build.gradle

@@ -162,10 +162,31 @@ jar.finalizedBy('reobfJar')
 // However if you are in a multi-project build, dev time needs unobfed jar files, so you can delay the obfuscation until publishing by doing
 // publish.dependsOn('reobfJar')
 
+task devJar(type: Jar) {
+    from sourceSets.main.output
+    from sourceSets.main.allJava
+    classifier = 'dev'
+    manifest {
+        attributes([
+            "Specification-Title": project.name,
+            "Specification-Vendor": "zontreck",
+            "Specification-Version": "1",
+            "Implementation-Title": project.name,
+            "Implementation-Version": version,
+            "Implementation-Vendor": "zontreck",
+            "Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ")
+        ])
+    }
+}
+
+devJar.finalizedBy('reobfJar')
+
+
 publishing {
     publications {
         mavenJava(MavenPublication) {
             artifact jar
+            artifact devJar
         }
     }
     repositories {
@@ -174,7 +195,6 @@ publishing {
         }
     }
 }
-
 tasks.withType(JavaCompile).configureEach {
     options.encoding = 'UTF-8' // Use the UTF-8 charset for Java compilation
 }