I need a lean Android dropper whose single purpose is to install another APK on the device. The workflow is straightforward: download the payload from a URL I will provide, store it locally, and invoke the package installer so the user can proceed with installation. Target platform • Must run on devices starting at Android 16 (API 16, Jelly Bean). If your code also works on later versions, that’s welcome but not strictly required. Required permissions • Access storage • Access network • Install packages Deliverables • Android Studio project (Java or Kotlin) with clear build instructions • Release-ready APK demonstrating the download-and-install routine Keep the implementation as lightweight as possible—no unnecessary libraries, just clean, well-commented code that does exactly what’s described above.