diff --git a/README.md b/README.md
index ce87c7a..ef43f4a 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,16 @@ Rust Flight Software Framework Launchpad
 
 This is the prototyping repository for the initial version of a
 Rust Flight Software Framework.
+
+## Build instructions
+
+### Prerequisites
+
+Do not forget to ```git submodule update --init```.
+Also remember to ```git submodule update``` after each branch change or merge.
+
+### Build and run
+
+Then it is a simple ```cargo build``` then can be run using ```cargo run --bin <binary>```. 
+Binaries are `obsw`, `client`, `test`.
+