{
 "schema_version": 1,
 "generated": "2026-10-20",
 "id": "techjarves-mobile-harness--build-android-app-on-phone",
 "repo": "techjarves/Mobile-Harness",
 "repo_url": "https://github.com/techjarves/Mobile-Harness",
 "repo_slug": "techjarves-mobile-harness",
 "title": "Build and install an Android app entirely on your phone",
 "page_title": "How to build and install an Android app entirely on your phone with Mobile Harness",
 "summary": "Write, build, and install a debug APK on Android with no PC and no USB debugging.",
 "who": "An Android hobbyist or student with only a phone who wants to make and test a small app without a laptop.",
 "problem": "Normally building an Android app needs a computer with Android Studio and USB or wireless debugging to install the result.",
 "outcome": "A debug APK built on the phone is handed to Android's package installer and launches after you confirm the install.",
 "steps": [
  "Download the Online APK from the Mobile Harness GitHub releases page and install it on your phone.",
  "Open the app and run the guided bootstrap, then select the Android toolchain in the Toolchains step.",
  "Tap New Project, open the AI Workspace, and describe the Android app you want.",
  "Let the agent draft the code, then tap the workspace play button to build the debug APK.",
  "Confirm the Android install prompt so the app installs and launches."
 ],
 "agent_prompt": "In the Mobile Harness app on an ARM64 Android phone, create a new project, ask the AI Workspace to build a simple Android app, and tap the play button. Expected output: a debug APK installed and launched on the phone. Verify that the install prompt appeared and the app opens.",
 "agents": [
  "claude-code"
 ],
 "difficulty": "Intermediate",
 "time": "45 minutes",
 "basis": "readme",
 "caveat": "Android still requires you to allow installs from Mobile Harness and confirm each installation, and PRoot is not a hardened security jail, so only build projects you trust.",
 "category": "Software and DevOps",
 "tags": [
  "Software and DevOps"
 ],
 "lang": "kotlin",
 "requirements": [
  "ARM64 Android phone running Android 9.0 or newer",
  "About 2.5 GB free storage for the base runtime, more for optional toolchains",
  "Stable internet for setup and API calls, or the Offline APK edition",
  "A Claude account or an API key from a supported provider",
  "Permission to allow installs from Mobile Harness when Android asks"
 ],
 "risk": "sensitive",
 "seen_in_the_wild": false,
 "mentioned_publicly": false,
 "risks": [
  {
   "tag": "credentials",
   "notice": "Your Claude or provider API key is stored in Android Keystore, and the agent sends prompts and project context to the model provider."
  }
 ],
 "best": true,
 "score": 1.0,
 "evidence": [],
 "url": "https://dedupedai.com/use-cases/techjarves-mobile-harness/build-android-app-on-phone/",
 "md": "https://dedupedai.com/use-cases/techjarves-mobile-harness/build-android-app-on-phone/index.md",
 "disclaimer": "Deduped lists open-source repositories that belong to other people. We do not own, maintain, audit, or vouch for any of them, and a repo appearing here is not an endorsement or a safety check. The use cases, steps, and prompts are written by AI and may be incomplete, outdated, or just wrong. Where a use case is marked \"Seen in the wild\", we link to public posts where someone described something similar, but we have not verified those posts and the use case itself is still our AI's own write-up. Use all of this at your own risk. Only run code, commands, or agents on systems and accounts you are authorized to use, and read the code and every command before you run it, especially anything that touches credentials, files, or the network. Nothing here is professional, security, legal, or financial advice. All trademarks and project names belong to their respective owners, and their use here does not imply affiliation. Content is provided as is, without warranties of any kind. Found a mistake, a safety problem, or something you want removed? Email hello@dedupedai.com and we will look at it promptly.",
 "api": "https://dedupedai.com/api/v1/usecases/techjarves-mobile-harness--build-android-app-on-phone.json",
 "api_version": "v1"
}