diff --git a/README.md b/README.md
index 0f4441e..4057071 100644
--- a/README.md
+++ b/README.md
@@ -1,19 +1,96 @@
-# Swizz Army Knife
+# Swiss Army kNife
+Command line environment to build/flash and debug roku firmware.
 
 ## Install
-Simply upload to /nvram/san and that's it.
+Source .profile.roku.dev in your .bashrc.
 
-## Run
-In order to load functions just run
+### Install web server
+Some of commands rely on a web server accessible by device.
+Install an Nginex server, and make sure that your working directory is available
+through it. Currently, the script expects that all files are accessable under
+http://<ip of your workstation>/roku/
+
+My Nginx configuration is:
 ```
->source /nvram/san
+server {
+        listen 80 default_server;
+        listen [::]:80 default_server;
+
+        root /var/www/html;
+
+        # Add index.php to the list if you are using PHP
+        index index.html index.htm index.nginx-debian.html;
+
+        server_name _;
+
+        location / {
+                # First attempt to serve request as file, then
+                # as directory, then fall back to displaying a 404.
+                try_files $uri $uri/ =404;
+        }
+
+        location /roku/ {
+                alias /home/vahagn/roku/;
+                index index.html index.htm;
+                autoindex on;
+                types {
+                        text/plain cc;
+                        text/plain cpp;
+                        text/plain h;
+                        text/plain mk;
+                        text/plain md;
+                        text/plain *;
+                }
+        }
+
+}
+
 ```
 
-For possible commands type
+## Usage
+When a new console opened, setup the device that you want to work with. For 
+that run: `roku device <ip address>` e.g.
+
 ```
->san_help
+mknik:17:41:54 ~/roku/san@master$ roku device 192.168.0.194
+device: 192.168.0.194
+platform: lockhart
 ```
 
+This will set environment variables for the device ( e.g. `ROKU_DEV_TARGET` )
+And now you could use the commands below.
+
+If this is the first time you are using the device (after factory reset) or 
+you have updated SAN, then you need to run `roku san update`. (Assuming you have
+web server installed and san is accessible from http://<ip>/roku/san). This 
+copies san to /nvram/san and configures the device e.g. turns off fastboot, 
+disables failsafe and etc.
+
+## Commands
+
+|  |  |
+|--|--|
+| roku telnet               | to telnet to device | 
+| roku telnet 8080          |- to telnet to 8080 port of the device |
+| roku reboot               | reboot device | 
+| roku flash                | flash acramfs from http://<ip>/roku/main |
+| roku log                  | logs through ethernet |
+| roku audcap <filename>    | capture audio from audio mixer of device |
+| roku build                | build firmware |
+| roku gdb attach           | run gdb server on the device |
+| roku gdb                  | attach to gdb server from workstation |
+| roku ....                 | etc |
+
+
+## The name
+Initially only 'san' was crafted and was used directly from the device. One
+would need to get a shell on the device, source it and then use it on the device.
+It had to be tiny auxilary script to perform repeating tasks, hence the name
+Swiss Army Knife.
+Later I have realised that I could manipulate the device directly from my 
+command line. All I need is to save it's IP address somewhere. That's how the 
+rest was born. 
+
 ## Cheats
 
 ### Setup debug mode.