diff --git a/doc/DEV.md b/doc/DEV.md
new file mode 100644
index 0000000..35bc41b
--- /dev/null
+++ b/doc/DEV.md
@@ -0,0 +1,35 @@
+# Scriptform Developer guide
+
+## Build rules
+
+Build rules for testing, generating documentation and generating packages are
+stored in `build.sla`. These can be run directly from a POSIX compliant shell,
+or you can use the [Simple Little Automator](https://github.com/fboender/sla)
+for convenience.
+
+## Inner workings
+
+1. Instantiate a `ScriptForm` class. This takes care of loading the form
+   config (json) file and provides methods to run the server.
+2. If running as a daemon:
+   a) Instantiate the `Daemon` class
+   b) Hook up a callback to shutdown the ScriptForm server
+   c) Start the daemon. This detaches from the console.
+3. Start the ScriptForm server. This listens on a port for incoming HTTP
+   connections.
+4. If a request comes in, it is dispatched to the `ScriptFormWebApp` request
+   handler. `ScriptFormWebApp` inherits from the `webserver.RequestHandler`
+   class.  The `WebAppHandler` determines which method of `ScriptFormWebApp`
+   the request should be dispatched to.
+5. Depending on the request, a method is called on `ScriptFormWebApp`. These
+   methods render HTML to as a response.
+6. If a form is submitted, its fields are validated and the script callback is
+   called. Depending on the output type, the output of the script is either
+   captured and displayed as HTML to the user or directly streamed to the
+   browser.
+7. GOTO 4.
+8. Upon receiving an OS signal (kill, etc) the daemon calls the shutdown
+   callback.
+9. The shutdown callback starts a new thread (otherwise the webserver blocks
+   until the next request) to stop the server.
+10. The program exits.
diff --git a/src/scriptform.py b/src/scriptform.py
index 6346c4e..d353148 100755
--- a/src/scriptform.py
+++ b/src/scriptform.py
@@ -1,32 +1,5 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
-#
-# Scriptform roughly works like this:
-#
-# 1. Instantiate a ScriptForm class. This takes care of loading the form config
-#    (json) file and provides methods to run the server.
-# 2. If running as a daemon:
-#    a) Instantiate the Daemon class
-#    b) Hook up a callback to shutdown the ScriptForm server
-#    c) Start the daemon. This detaches from the console.
-# 3. Start the ScriptForm server. This listens on a port for incoming HTTP
-#    connections.
-# 4. If a request comes in, it is dispatched to the ScriptFormWebApp request
-#    handler.ScriptFormWebApp inherits from the webserver.RequestHandler class.
-#    The WebAppHandler determines which method of ScriptFormWebApp the request
-#    should be dispatched to.
-# 5. Depending on the request, a method is called on ScriptFormWebApp. These
-#    methods render HTML to as a response.
-# 6. If a form is submitted, its fields are validated and the script callback
-#    is called. Depending on the output type, the output of the script is
-#    either captured and displayed as HTML to the user or directly streamed to
-#    the browser.
-# 7. GOTO 4.
-# 8. Upon receiving an OS signal (kill, etc) the daemon calls the shutdown
-#    callback.
-# 9. The shutdown callback starts a new thread (otherwise the webserver blocks
-#    until the next request) to stop the server.
-# 10. The program exits.
 
 """
 Main ScriptForm program