diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,2 +1,20 @@
 # ift713-main-host
 
+This is the folder for the "main" server, doing all the processing and gathering
+data.
+It hosts an openhab instance and mqtt (rumqtt) courier.
+
+To launch it, just `make` in the root, it'll set docker w/ the correct
+permissions.
+
+## TODO
+- [ ] mqtt basic config
+    - [ ] comms w/ fpga
+    - [ ] topics
+    - [ ] replication
+- [ ] openhab rules
+    - [ ] comms w/ fpga
+        - [ ] lights
+        - [ ] buttons (reset)
+- [ ] blockchain ?
+    - [ ] besu ?