diff --git a/.vscode/launch.json b/.vscode/launch.json
index 5b804e8..d7759c4 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -4,18 +4,24 @@
   // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
   "version": "0.2.0",
   "configurations": [
-
+    {
+      "type": "java",
+      "name": "Main",
+      "request": "launch",
+      "mainClass": "frc.robot.Main",
+      "projectName": "2026-training"
+    },
     {
       "type": "wpilib",
       "name": "WPILib Desktop Debug",
       "request": "launch",
-      "desktop": true,
+      "desktop": true
     },
     {
       "type": "wpilib",
       "name": "WPILib roboRIO Debug",
       "request": "launch",
-      "desktop": false,
+      "desktop": false
     }
   ]
 }
diff --git a/src/main/java/frc/robot/subsystems/week3CommandNotes.txt b/src/main/java/frc/robot/subsystems/week3CommandNotes.txt
new file mode 100644
index 0000000..92eeef4
--- /dev/null
+++ b/src/main/java/frc/robot/subsystems/week3CommandNotes.txt
@@ -0,0 +1,48 @@
+Command Scheduler: 
+- class responsible -> run commands 
+- schedules commands accordingly
+- runs periodic method for each subsystem 
+
+Subsystems
+- robot organization based off of code
+- abstraction of robot hardware -> work together 
+- restricting access
+    - single place for code
+    - access through public methods 
+    - specifc details easily added
+- backbond of CommandScheduler's resource organization
+- associated with default commands  
+- basic functionality
+    - ex: mechanisms, movement 
+
+How to create 
+- abstract class systembase
+    - need wpilib
+    - parent class -> easily add components + behaviors 
+- elevator subsystem 
+    - must be defined
+    - associated with hardware
+- motors + sensors defined through private and final modifiers 
+- 1:1 correspondence / partnership
+- hardware is ALWAYS intialized 
+    - with port #
+- methods 
+    - made + get values
+    - periodic method 
+    - default comamnds 
+
+periodic()
+- every 20ms
+- OPTIONAL
+- not CONTROLLING motors 
+
+Requirement & Default command: 
+- 1:1 correspondance between subsystem code + on robot
+- ex: one instance of arm subsystem : one arm
+- complete one command at a time
+- period() method   
+    - no move motor
+    - always runs
+    - actions to commands
+- no intervention
+    - subsystem doesnt do anything
\ No newline at end of file