diff --git a/backlog/tasks/task-039 - MapShape-Integration-Connect-Subsystems-to-Canvas-Shape.md b/backlog/tasks/task-039 - MapShape-Integration-Connect-Subsystems-to-Canvas-Shape.md
index fad6d4a..6093c3d 100644
--- a/backlog/tasks/task-039 - MapShape-Integration-Connect-Subsystems-to-Canvas-Shape.md	
+++ b/backlog/tasks/task-039 - MapShape-Integration-Connect-Subsystems-to-Canvas-Shape.md	
@@ -4,6 +4,7 @@ title: 'MapShape Integration: Connect Subsystems to Canvas Shape'
 status: In Progress
 assignee: []
 created_date: '2025-12-05 02:12'
+updated_date: '2025-12-05 02:21'
 labels:
   - feature
   - mapping
@@ -21,10 +22,46 @@ Evolve MapShapeUtil.tsx to integrate the 6 implemented subsystems (privacy, myce
 
 ## Acceptance Criteria
 <!-- AC:BEGIN -->
-- [ ] #1 MapShape props extended for subsystem toggles
-- [ ] #2 Presence layer integrated with opt-in location sharing
-- [ ] #3 Lens system accessible via UI
+- [x] #1 MapShape props extended for subsystem toggles
+- [x] #2 Presence layer integrated with opt-in location sharing
+- [x] #3 Lens system accessible via UI
 - [ ] #4 Route/waypoint visualization working
 - [ ] #5 Collaboration sync via Automerge
 - [ ] #6 Discovery game elements visible on map
 <!-- AC:END -->
+
+## Implementation Notes
+
+<!-- SECTION:NOTES:BEGIN -->
+**MapShape Evolution Progress (Dec 5, 2025):**
+
+### Completed:
+
+1. **Extended IMapShape Props** - Added comprehensive subsystem configuration types:
+   - `MapPresenceConfig` - Location sharing with privacy levels
+   - `MapLensConfig` - Alternative map projections
+   - `MapDiscoveryConfig` - Games, anchors, spores, hunts
+   - `MapRoutingConfig` - Waypoints, routes, alternatives
+   - `MapConicsConfig` - Possibility cones visualization
+
+2. **Header UI Controls** - Subsystem toolbar with:
+   - ⚙️ Expandable subsystem panel
+   - Toggle buttons for each subsystem
+   - Lens selector dropdown (6 lens types)
+   - Share location button for presence
+   - Active subsystem indicators in header
+
+3. **Visualization Layers Added:**
+   - Route polyline layer (MapLibre GeoJSON source/layer)
+   - Waypoint markers management
+   - Routing panel (bottom-right) with stats
+   - Presence panel (bottom-left) with share button
+   - Discovery panel (top-right) with checkboxes
+   - Lens indicator badge (top-left when active)
+
+### Still Needed:
+- Actual MapLibre marker implementation for waypoints
+- Integration with OSRM routing backend
+- Connect presence system to actual location services
+- Wire up discovery system to anchor/spore data
+<!-- SECTION:NOTES:END -->