updated root readme

README.org

@@ -9,8 +9,34 @@ For information on the UI application visit [[abacus-ui/][Abacus UI]].
 
 
 This package is broken into two projects:
-[[abacus-core][Abacus Core]] - Which contains the scirpt processing and calculation engine.
-[[abacus-ui][Abacus UI]]  - The desktop application
+- [[abacus-core][Abacus Core]] - Which contains the scirpt processing and calculation engine.
+- [[abacus-ui][Abacus UI]]  - The desktop application
 
 
+* Building the project from source
+
+** Rust
+Download and install rust: [[https://rustup.rs]].
+
+** Linux
+*** General Dependencies
+This is a GTK4 application and as such the GTK3 development library needs to be installed:
+
+#+begin_src sh
+sudo apt-get install libgtk-3-dev
+#+end_src
+
+You may also need lib-shape and lib-xfixes:
+
+#+begin_src
+apt-get -y install libxcb-shape0-dev libxcb-xfixes0-dev
+#+end_src
+
+** Launching
+
+Run and build via cargo
+#+begin_src sh
+cargo run
+#+end_src
+