diff --git a/core/src/main/java/com/alamkanak/weekview/CalendarExtensions.kt b/core/src/main/java/com/alamkanak/weekview/CalendarExtensions.kt
index 9c6f1e0e..83f4bcdd 100644
--- a/core/src/main/java/com/alamkanak/weekview/CalendarExtensions.kt
+++ b/core/src/main/java/com/alamkanak/weekview/CalendarExtensions.kt
@@ -61,8 +61,6 @@ internal val Calendar.year: Int
 
 internal fun Calendar.isEqual(other: Calendar) = timeInMillis == other.timeInMillis
 
-internal fun Calendar.isNotEqual(other: Calendar) = isEqual(other).not()
-
 internal operator fun Calendar.plus(days: Days): Calendar {
     return copy().apply {
         add(Calendar.DATE, days.days)
diff --git a/core/src/main/java/com/alamkanak/weekview/ResolvedWeekViewEvent.kt b/core/src/main/java/com/alamkanak/weekview/ResolvedWeekViewEvent.kt
index d7172497..1510b3c0 100644
--- a/core/src/main/java/com/alamkanak/weekview/ResolvedWeekViewEvent.kt
+++ b/core/src/main/java/com/alamkanak/weekview/ResolvedWeekViewEvent.kt
@@ -154,13 +154,13 @@ internal fun ResolvedWeekViewEntity.toWeekViewItem(): WeekViewItem {
             cornerRadius = style.cornerRadius,
         ),
         configuration = WeekViewItem.Configuration(
-            respectDayGap = this is WeekViewEntity.Event<*>,
+            respectDayGap = this is ResolvedWeekViewEntity.Event<*>,
             arrangement = when (this) {
                 is ResolvedWeekViewEntity.Event<*> -> WeekViewItem.Arrangement.Foreground
                 is ResolvedWeekViewEntity.BlockedTime -> WeekViewItem.Arrangement.Background
             },
-            canBeDragged = this is WeekViewEntity.Event<*>,
+            canBeDragged = this is ResolvedWeekViewEntity.Event<*>,
         ),
-        data = (this as? ResolvedWeekViewEntity.Event<*>)?.data,
+        data = (this as? ResolvedWeekViewEntity.Event<*>)?.data ?: Unit,
     )
 }
diff --git a/core/src/main/java/com/alamkanak/weekview/WeekViewItem.kt b/core/src/main/java/com/alamkanak/weekview/WeekViewItem.kt
index 3a4ad508..9212c6c3 100644
--- a/core/src/main/java/com/alamkanak/weekview/WeekViewItem.kt
+++ b/core/src/main/java/com/alamkanak/weekview/WeekViewItem.kt
@@ -19,7 +19,7 @@ data class WeekViewItem(
     val timing: Timing,
     val style: Style = Style(),
     val configuration: Configuration = Configuration(),
-    val data: Any? = null,
+    val data: Any,
 ) {
 
     /**
diff --git a/scripts/publish-mavencentral.gradle b/scripts/publish-mavencentral.gradle
new file mode 100644
index 00000000..2bf08431
--- /dev/null
+++ b/scripts/publish-mavencentral.gradle
@@ -0,0 +1,124 @@
+apply plugin: 'maven-publish'
+apply plugin: 'signing'
+apply plugin: 'org.jetbrains.dokka'
+
+ext {
+    PUBLISH_GROUP_ID = 'com.thellmund.android-week-view'
+    PUBLISH_VERSION = '5.3.0'
+}
+
+task androidSourcesJar(type: Jar) {
+    archiveClassifier.set('sources')
+    if (project.plugins.findPlugin("com.android.library")) {
+        from android.sourceSets.main.java.srcDirs
+        from android.sourceSets.main.kotlin.srcDirs
+    } else {
+        from sourceSets.main.java.srcDirs
+        from sourceSets.main.kotlin.srcDirs
+    }
+}
+
+task javadocJar(type: Jar, dependsOn: dokkaJavadoc) {
+    archiveClassifier.set('javadoc')
+    from dokkaJavadoc.outputDirectory
+}
+
+artifacts {
+    archives androidSourcesJar
+    archives javadocJar
+}
+
+group = PUBLISH_GROUP_ID
+version = PUBLISH_VERSION
+
+ext["signing.keyId"] = ''
+ext["signing.password"] = ''
+ext["signing.secretKeyRingFile"] = ''
+ext["ossrhUsername"] = ''
+ext["ossrhPassword"] = ''
+ext["sonatypeStagingProfileId"] = ''
+
+File secretPropsFile = project.rootProject.file('local.properties')
+if (secretPropsFile.exists()) {
+    Properties p = new Properties()
+    p.load(new FileInputStream(secretPropsFile))
+    p.each { name, value ->
+        ext[name] = value
+    }
+} else {
+    ext["signing.keyId"] = System.getenv('SIGNING_KEY_ID')
+    ext["signing.password"] = System.getenv('SIGNING_PASSWORD')
+    ext["signing.secretKeyRingFile"] = System.getenv('SIGNING_SECRET_KEY_RING_FILE')
+    ext["ossrhUsername"] = System.getenv('OSSRH_USERNAME')
+    ext["ossrhPassword"] = System.getenv('OSSRH_PASSWORD')
+    ext["sonatypeStagingProfileId"] = System.getenv('SONATYPE_STAGING_PROFILE_ID')
+}
+
+publishing {
+    publications {
+        release(MavenPublication) {
+            groupId PUBLISH_GROUP_ID
+            artifactId PUBLISH_ARTIFACT_ID
+            version PUBLISH_VERSION
+
+            if (project.plugins.findPlugin("com.android.library")) {
+                artifact("$buildDir/outputs/aar/${project.getName()}-release.aar")
+            } else {
+                artifact("$buildDir/libs/${project.getName()}-${version}.jar")
+            }
+
+            artifact androidSourcesJar
+            artifact javadocJar
+
+            pom {
+                name = PUBLISH_ARTIFACT_ID
+                description = 'Display highly customizable calendar views in your Android app'
+                url = 'https://github.com/thellmund/Android-Week-View'
+                packaging = 'aar'
+                licenses {
+                    license {
+                        name = 'The Apache Software License, Version 2.0'
+                        url = 'https://www.apache.org/licenses/LICENSE-2.0.txt'
+                    }
+                }
+                developers {
+                    developer {
+                        id = 'thellmund'
+                        name = 'Till Hellmund'
+                        email = 'thellmund@gmail.com'
+                    }
+                }
+                scm {
+                    connection = 'scm:git:github.com/thellmund/Android-Week-View.git'
+                    developerConnection = 'scm:git:ssh://github.com/thellmund/Android-Week-View.git'
+                    url = 'https://github.com/thellmund/Android-Week-View/tree/main'
+                }
+                withXml {
+                    def dependenciesNode = asNode().appendNode('dependencies')
+
+                    project.configurations.implementation.allDependencies.each {
+                        def dependencyNode = dependenciesNode.appendNode('dependency')
+                        dependencyNode.appendNode('groupId', it.group)
+                        dependencyNode.appendNode('artifactId', it.name)
+                        dependencyNode.appendNode('version', it.version)
+                    }
+                }
+            }
+        }
+    }
+    repositories {
+        maven {
+            name = "sonatype"
+            url = "https://oss.sonatype.org/service/local/staging/deploy/maven2/"
+
+            credentials {
+                username ossrhUsername
+                password ossrhPassword
+            }
+        }
+    }
+}
+
+signing {
+    sign publishing.publications
+}