diff --git a/Readme.md b/Readme.md
index 6d4cac2..ea459d9 100644
--- a/Readme.md
+++ b/Readme.md
@@ -14,6 +14,22 @@ This is the fortran source code and GUI of TrimSP Monte-Carlo simulations.
 
 * Linux
 
+### Fortran code compilation: ###
+
+Install gfortran compiler, then:
+
+    cd trimsp/fortran
+	make
+    make install
+    
+This will install the `trimspNL` in `/usr/local/bin`.
+
+### Running the GUI ###
+Install Node.js and Electron, then
+
+    cd trimsp
+    npm start
+
 ### Contact ###
 Zaher Salman <zaher.salman@psi.ch>