diff --git a/300/999/100/README.md b/300/999/100/README.md
index 298c145..0b7bee5 100644
--- a/300/999/100/README.md
+++ b/300/999/100/README.md
@@ -1,5 +1,42 @@
 # 100 - Customer Discovery
 
+### NotePlan - Repository Pattern
+
+```mermaid
+classDiagram
+    class Client {
+      +createHypothesis()
+      +retrieveHypothesis()
+      +updateHypothesis()
+    }
+    class HypothesisRepository {
+      +save(hypothesis)
+      +findById(id)
+      +findAll()
+      +update(hypothesis)
+    }
+    class NotePlanStorage {
+      -connection
+      +saveToNotes(data)
+      +fetchFromNotes(query)
+      +updateNote(id, data)
+    }
+    Client --> HypothesisRepository
+    HypothesisRepository --> NotePlanStorage
+```
+
+### StoriesOnBoards - CQRS Pattern (Command Query Responsibility Segregation)
+
+### Flowlu - Event-Driven Architecture
+
+### ActivePieces - Pipes and Filters Pattern
+
+### Visual Studio Code - Plugin Architecture Pattern
+
+### GitHub - Gitflow Workflow Pattern
+
+### Cursor.io - AI-Enhanced Middleware Pattern
+
 ## 100 - Define Your Vision and Hypotheses
 
 See [README.md](./100/README.md)
diff --git a/300/999/200/README.md b/300/999/200/README.md
index 971fc99..70680ae 100644
--- a/300/999/200/README.md
+++ b/300/999/200/README.md
@@ -1,5 +1,9 @@
 # 200 - Customer Validation
 
+### Flowlu CRM - Microservices Architecture
+
+### ActivePieces - Observer Pattern
+
 ## 100 - Test Product Hypotheses
 
 See [README.md](./100/README.md)
diff --git a/300/999/300/README.md b/300/999/300/README.md
index 70709c3..2321f48 100644
--- a/300/999/300/README.md
+++ b/300/999/300/README.md
@@ -1,5 +1,9 @@
 # 300 - Customer Creation
 
+### ActivePieces (Marketing) - Publish-Subscribe Pattern
+
+### Flowlu (Brand Marketing) - MVC Pattern
+
 ## 100 - Build Our Marketing and Sales Strategies
 
 See [README.md](./100/README.md)
diff --git a/300/999/400/README.md b/300/999/400/README.md
index 6084d2a..187da95 100644
--- a/300/999/400/README.md
+++ b/300/999/400/README.md
@@ -1,5 +1,9 @@
 # 400 - Company Building
 
+### Flowlu (Team Management) - Hexagonal Architecture
+
+### GitHub (Technical Team) - CI/CD Pipeline Pattern
+
 ## 100 - Organize Internal Structures
 
 See [README.md](./100/README.md)