Update readme

.gitignore

@@ -37,3 +37,5 @@ npm-debug.log
 
 .envrc
 
+.DS_Store
+

README.md

@@ -6,14 +6,31 @@ Polar is an image server for LXD / Incus. It has some useful features like
 + Feed specific to incus / lxd, you can choose when creating credentials.
 + Users can create `spaces` to manage multiple credentials.
 
+The build system for polar is called [icepak](https://github.com/upmaru/icepak). It's designed to run as a github action, you can see it in action [here](https://github.com/upmaru/opsmaru-images).
 
 ## Basic Architecture
 
 ![basic design](/design.png)
 
 ## Development
 
-Clone the repository and start the server with 
+Make sure you have Elixir / OTP installed. If you have asdf in your environment simply run 
+
+```shell
+asdf install
+```
+
+### Install Dependencies
+
+Install dependencies using mix:
+
+```shell
+mix deps.get
+```
+
+## Start Server
+
+You can start the server with the following command. It will be hosted on port 4000
 
 ```shell
 iex -S mix phx.server