diff --git a/midpoint/attachments/main-proj-architecture.dot b/midpoint/attachments/main-proj-architecture.dot
new file mode 100644
index 0000000..5518528
--- /dev/null
+++ b/midpoint/attachments/main-proj-architecture.dot
@@ -0,0 +1,19 @@
+digraph overview {
+	node [fontname = Arial];
+	l1 -> server;
+	l2 -> server;
+	server -> r1;
+	server -> r2;
+	r1 -> server;
+	r2 -> server;
+	l1 [label = "Light Meter 1", color = lightblue, style = filled];
+	l2 [label = "Light Meter 2", color = orange, style = filled];
+	r1 [label = "Relay 1", color = lightblue, style = filled];
+	r2 [label = "Relay 2", color = orange, style = filled ];
+		subgraph cluster0 {
+		style = filled;
+		color = lightgrey;
+		server;
+	}
+	server [label = "Midpoint (Server)", style = filled, color = white];
+}
diff --git a/midpoint/attachments/main-proj-architecture.png b/midpoint/attachments/main-proj-architecture.png
new file mode 100644
index 0000000..d8366e4
Binary files /dev/null and b/midpoint/attachments/main-proj-architecture.png differ
diff --git a/midpoint/rtr-midpoint.md b/midpoint/rtr-midpoint.md
index e69de29..355d31f 100644
--- a/midpoint/rtr-midpoint.md
+++ b/midpoint/rtr-midpoint.md
@@ -0,0 +1,76 @@
+# Return to Ritherdon: Midpoint
+
+Midpoint is one of three smaller projects which make-up 'Personal
+Flash in Real-Time' -- which is one artwork within the main 'Return to
+Ritherdon' project. You should view the three smaller projects as one
+project. And, for the purpose of this documentation, I will refer to
+'Personal Flash in Real-Time' as a system instead of an artwork.
+
+For more information on the 'Return to Ritherdon' project, use the
+following link:
+
+- [Return to Ritherdon Overview](https://git.abbether.net/return-to-ritherdon/rtr-docs)
+  
+## 'Personal Flash in Real-Time': Project Overview
+
+The overall system ('Personal Flash in Real-Time') consists of three
+separate/smaller projects. You should not view them as individual
+pieces within the overall project. From an artwork point-of-view,
+'Personal Flash in Real-Time' is one piece. The name of the software
+projects are 'Light Meter' (which is this one), 'Midpoint' and
+'Relay'. All three projects reside in their own git repositories. You
+can find the repositories at the following links:
+
+- [Light Meter](https://git.abbether.net/return-to-ritherdon/light-meter)
+- [Mid-Point](https://git.abbether.net/return-to-ritherdon/midpoint)
+- [Relay](https://git.abbether.net/return-to-ritherdon/relay)
+
+The (technical) aim of the project is to turn a set of lights on at
+the gallery when the welding machines are active in the welding booths
+at Ritherdon. The solution we arrived at was a three-stage
+process. The stages are as follows:
+
+1. Monitor the light levels in the welding booths at Ritherdon and
+   send that information to a sever (Light Meter).
+2. Receive the light readings and store them in a database and make
+   them available for others to access (Midpoint).
+3. Have the lights installed at the gallery connected to wi-fi enabled
+   relays which request the latest light readings from the server. If
+   the readings are above a certain threshold, have the light in the
+   gallery turn on (otherwise, turn off). The relays are responsible
+   for turning the lights on and off (Relay).
+
+Each step should require no human intervention.
+
+For more information on how each project accomplishes its task, please
+use the (repo.) links above. Otherwise, here is an diagram to help
+explain the three stages mentioned above.
+
+![Main Project Architecture](attachments/main-proj-architecture.png)
+
+## Hardware Specifications
+
+There are no specific hardware requirements. If you can get an machine
+to run a server (E.G. Nginx or Apache), you should be good to
+go. Unfortunately, the scope of the project meant the amount of
+support for hardware and software is limited to an x86 Linux based
+machine running Nginx. I decided to run a virtual machine on Amazon
+Web Services.
+
+- [Amazon Web Services](https://aws.amazon.com/)
+
+## Software Requirements
+
+I have set-up the server to run on Linux (I.E. Ubuntu) with an Nginx
+server -- on an x86 machine. Any other variation on that
+(I.E. Windows), you will be on your own. The reason why is because I
+have not tested it. How you acquire the hardware is up to you. For the
+intents of the project, I used a virtual machine on Amazon Web
+Services. Links for various parts of the set-up are below:
+
+- [https://ubuntu.com/](https://ubuntu.com/)
+- [Nginx](https://www.nginx.com/)
+- [Python Flask](https://flask.palletsprojects.com/en/2.0.x/)
+- [SQLite Database](https://sqlite.org/index.html)
+- [Swagger REST API](https://swagger.io/)
+