diff --git a/index.wiki b/index.wiki
index a71451c..757132a 100644
--- a/index.wiki
+++ b/index.wiki
@@ -30,6 +30,10 @@ _Ideas.md and Classes.md are encrypted, so these links will not work_
 * [[tech/misc|Misc]] - Miscellaneous tools
 * [[tech/Web3|Web3]] - Web3 and decentralization
 
+=== Vehicles ===
+
+* [[tech/Ranger|Ford Ranger]]
+
 == [[tech/index|Languages]] ==
 
 * [[tech/C|C]]
diff --git a/tech/Ranger.wiki b/tech/Ranger.wiki
new file mode 100644
index 0000000..f55997c
--- /dev/null
+++ b/tech/Ranger.wiki
@@ -0,0 +1,8 @@
+= Ford ranger =
+
+Info and notes about my 1998 ford ranger
+
+== Fuses ==
+
+There are two [[Fuse]] boxes in the truck, under the hood in the engine
+comparment fusebox, and one above the driver's footwell.
diff --git a/tech/development.wiki b/tech/development.wiki
index 36b643f..8119eba 100644
--- a/tech/development.wiki
+++ b/tech/development.wiki
@@ -22,6 +22,7 @@
 The human aspect of development
 
 * [[eliciting_requirements]]
+* [[requirements_modeling]]
 
 
 
diff --git a/tech/requirements_modeling.wiki b/tech/requirements_modeling.wiki
new file mode 100644
index 0000000..f29567a
--- /dev/null
+++ b/tech/requirements_modeling.wiki
@@ -0,0 +1,3 @@
+= Requirements modeling =
+
+