diff --git a/quartz/build.gradle.kts b/quartz/build.gradle.kts
index eb41b2331..24ca0e68b 100644
--- a/quartz/build.gradle.kts
+++ b/quartz/build.gradle.kts
@@ -22,10 +22,15 @@ kotlin {
         }.configure {
             instrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         }
-    }
 
-    compilerOptions {
-        freeCompilerArgs.add("-Xstring-concat=inline")
+        optimization {
+            consumerKeepRules.publish = true
+            consumerKeepRules.files.add(File(project.projectDir, "proguard-rules.pro"))
+        }
+
+        compilerOptions {
+            freeCompilerArgs.add("-Xstring-concat=inline")
+        }
     }
 
     // For iOS targets, this is also where you should
@@ -153,5 +158,4 @@ kotlin {
             }
         }
     }
-
 }
\ No newline at end of file
diff --git a/quartz/src/jvmMain/kotlin/com/vitorpamplona/quartz/Platform.jvm.kt b/quartz/src/jvmMain/kotlin/com/vitorpamplona/quartz/Platform.jvm.kt
new file mode 100644
index 000000000..3bcb46024
--- /dev/null
+++ b/quartz/src/jvmMain/kotlin/com/vitorpamplona/quartz/Platform.jvm.kt
@@ -0,0 +1,23 @@
+/**
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.quartz
+
+actual fun platform() = "JVM"