diff --git a/backlog/tasks/task-19 - Enable-overlay-keybinds-whenever-app-runtime-is-active.md b/backlog/tasks/task-19 - Enable-overlay-keybinds-whenever-app-runtime-is-active.md
index ea8c8ab..783ef19 100644
--- a/backlog/tasks/task-19 - Enable-overlay-keybinds-whenever-app-runtime-is-active.md	
+++ b/backlog/tasks/task-19 - Enable-overlay-keybinds-whenever-app-runtime-is-active.md	
@@ -4,6 +4,7 @@ title: Enable overlay keybinds whenever app runtime is active
 status: To Do
 assignee: []
 created_date: '2026-02-12 08:47'
+updated_date: '2026-02-12 09:40'
 labels: []
 dependencies: []
 priority: high
@@ -14,3 +15,29 @@ priority: high
 <!-- SECTION:DESCRIPTION:BEGIN -->
 Restored task after accidental cleanup. Ensure keybindings are available whenever the Electron runtime is active, while respecting focused overlay/input contexts that require local key handling.
 <!-- SECTION:DESCRIPTION:END -->
+
+## Implementation Notes
+
+<!-- SECTION:NOTES:BEGIN -->
+Started implementation: tracing overlay shortcut registration lifecycle and runtime activation gating.
+
+Root cause: overlay shortcut sync executes during overlay runtime initialization before overlayRuntimeInitialized is set true, so registration could be skipped until a later visibility toggle.
+
+Implemented fix in initializeOverlayRuntime: after setting overlayRuntimeInitialized = true, immediately call syncOverlayShortcuts() to register overlay keybinds for active runtime state.
+
+Follow-up from repro: startup path with --start did not initialize overlay runtime (commandNeedsOverlayRuntime excluded start), so overlay keybinds stayed unavailable until first overlay visibility command.
+
+Updated CLI runtime gating so --start initializes overlay runtime, which activates overlay shortcut registration immediately.
+
+User clarified MPV-only workflow requirement. Added MPV plugin keybindings and script messages for mining/runtime actions (copy/mine/multi/mode/field-grouping/subsync/audio-card/runtime-options) so these actions are available from mpv chord bindings without relying on overlay global shortcuts.
+
+Per user direction, reverted all shortcut/runtime/plugin changes from this implementation cycle. Desired behavior is to keep keybindings working only when overlay is active.
+<!-- SECTION:NOTES:END -->
+
+## Final Summary
+
+<!-- SECTION:FINAL_SUMMARY:BEGIN -->
+Ensured overlay shortcuts are available as soon as overlay runtime becomes active by resyncing after activation flag is set. This prevents startup states where shortcuts remained inactive until a later overlay visibility change.
+
+Follow-up fix: included --start in overlay-runtime-required commands so keybinds are active right after startup, even before toggling visible/invisible overlays.
+<!-- SECTION:FINAL_SUMMARY:END -->