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 # nim-e2e-reliability
 Nim implementation of the e2e reliability protocol
+
+# Building
+
+## Android
+
+Download the latest Android NDK. For example, on Ubuntu Intel:
+
+```code
+cd ~
+wget https://dl.google.com/android/repository/android-ndk-r27c-linux.zip
+```
+```code
+unzip android-ndk-r27c-linux.zip
+```
+
+Then, add the following to your ~/.bashrc file:
+```code
+export ANDROID_NDK_HOME=$HOME/android-ndk-r27c
+export PATH=$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin:$PATH
+```
+
+Then, use one of the following commands, according to the current architecture:
+
+| Architecture | command |
+| arm64 | make libsds-android ARCH=arm64 |
+| amd64 | make libsds-android ARCH=amd64 |
+| x86 | make libsds-android ARCH=x86 |
+
+At the end of the process, the library will get created in build/libsds.so
+
+## Windows, Linux or MacOS
+
+```code
+make libsds
+```
+
+