revert: Revert "Revert "Modularize the app""

This reverts commit f59f2346dc.

core/build.gradle.kts

@@ -0,0 +1,49 @@
+plugins {
+    kotlin("multiplatform")
+    kotlin("plugin.serialization")
+    id("com.android.library")
+}
+
+kotlin {
+    androidTarget()
+    sourceSets {
+        val commonMain by getting {
+            dependencies {
+                implementation(projects.i18n)
+                api(libs.bundles.logging)
+            }
+        }
+        val androidMain by getting {
+            dependencies {
+                api(libs.okhttp)
+                api(libs.okhttp.logging.interceptor)
+                api(libs.okhttp.dnsoverhttps)
+                api(libs.okhttp.brotli)
+                api(libs.okio)
+
+                api(androidx.preference)
+                api(libs.rxjava)
+                api(project.dependencies.enforcedPlatform(kotlinx.coroutines.bom))
+                api(kotlinx.coroutines.core)
+                api(kotlinx.serialization.json)
+                api(kotlinx.serialization.json.okio)
+
+                implementation(libs.quickjs.android)
+            }
+        }
+    }
+}
+
+android {
+    namespace = "yokai.core"
+}
+
+tasks {
+    withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
+        kotlinOptions.freeCompilerArgs += listOf(
+            "-Xcontext-receivers",
+            "-opt-in=kotlinx.coroutines.ExperimentalCoroutinesApi",
+            "-opt-in=kotlinx.serialization.ExperimentalSerializationApi",
+        )
+    }
+}