# Open NCMC

Android app that reads balance data from RuPay prepaid cards over NFC. Read the blog: https://nkmason.dev/posts/reversing-ncmc-spec-bug-tools/

## Build

Requires JDK 17+ and an Android SDK (API 37).

```sh
./gradlew assembleDebug
```

Output: `app/build/outputs/apk/debug/app-debug.apk`

To install on a connected device:

```sh
./gradlew installDebug
```