Document development steps on linux without intellij

README.md

@@ -6,10 +6,47 @@
 
 100% FOSS keyboard, based on AOSP.
 
-### Permissions
+## Permissions
 * **Read Contacts**: Used to add your contact list to suggestions. Disabled by default.
 
-# Contribute
+## Contribute
 
 ### How to create a dictionary
 You can use [this tool](https://github.com/remi0s/aosp-dictionary-tools) to create a dictionary. You need a wordlist, as described [here](https://github.com/dslul/openboard/blob/master/dictionaries/sample.combined). The output .dict file must be put in [res/raw](https://github.com/dslul/openboard/tree/master/app/src/main/res/raw).
+
+### APK Development
+
+#### Linux
+
+Install java:
+```sh
+sudo pacman -S jdk8-openjdk jre8-openjdk jre8-openjdk-headless
+```
+
+Install Android SDK:
+```sh
+sudo pacman -S snapd
+sudo snap install androidsdk
+```
+
+Configure your SDK location in your `~/.bash_profile` or `~/.bashrc`:
+```bash
+export ANDROID_SDK_ROOT=~/snap/androidsdk/current/AndroidSDK/
+```
+
+Install the platform tools for your target android version:
+```sh
+androidsdk "platform-tools" "platforms;android-28"
+```
+
+Compile the project. This will install all dependencies, make sure to accept
+licenses when prompted.
+
+```sh
+./gradlew assembleDebug
+```
+
+Connect your phone and install the debug APK
+```sh
+adb install ./app/build/outputs/apk/debug/app-debug.apk
+```