This is an unofficial reimplementation of Linux Mint's file sharing tool Warpinator for Android.
Get the APK from the Releases page
Also available on F-Droid and Google Play
Build with Android Studio or with this command (you will need to install Android SDK yourself though):
export ANDROID_SDK_ROOT=$HOME/Android/Sdk
./gradlew :app:assembleDebug
Translations are now being done through Weblate
