diff --git a/TODO.md b/TODO.md
new file mode 100644
index 0000000..ab383ce
--- /dev/null
+++ b/TODO.md
@@ -0,0 +1,67 @@
+# Qt Port TODO
+
+## Completed
+
+- [x] Remove Kivy and `katrain.gui` imports from `katrain/core`.
+- [x] Replace direct core-to-widget calls with framework-neutral events.
+- [x] Move Kivy language observation, widget fonts, PV markup, and UI updates into Kivy adapters.
+- [x] Preserve behavior with core-boundary, parser, board, AI, and remote-engine tests.
+
+## 1. Finish Core Host Separation
+
+- [ ] Define `Protocol` types for the remaining host contract: configuration, logging, player/session state, and event delivery.
+- [ ] Change `BaseGame`, engines, contribution code, and AI helpers to accept those narrow dependencies instead of an untyped `katrain` object.
+- [ ] Move game/session ownership (`game`, `pondering`, active-game replacement) into a framework-neutral application controller.
+- [ ] Replace engine-thread callbacks that mutate game state directly with controller-dispatched work.
+- [ ] Add unit tests for event ordering, thread dispatch boundaries, configuration migration/backup, and translator fallback.
+
+Done when `katrain/core` has no dependency on a concrete application object and can be embedded by a non-Kivy command-line test host.
+
+## 2. Establish the Qt Application Shell
+
+- [ ] Add PySide6 as the frontend dependency and create a Qt entry point without importing Kivy.
+- [ ] Implement Qt versions of the core event sink and language adapter using queued Qt signals.
+- [ ] Create application/session, configuration, engine-lifecycle, and error/recovery controllers.
+- [ ] Add a minimal window with startup/shutdown, settings loading, KataGo restart, and localized status display.
+- [ ] Confirm all core-originated UI events execute on the Qt main thread.
+
+Done when Qt can open a window, start/stop KataGo, show engine failures, and load persisted settings without loading Kivy.
+
+## 3. Build the Game Workspace
+
+- [ ] Implement board rendering with independent board, black-stone, and white-stone image selection plus stone variants.
+- [ ] Implement move entry, navigation, branches, insert mode, region-of-interest selection, and undo/redo.
+- [ ] Implement the move tree, candidate moves, principal variation interaction, ownership display, and analysis graph.
+- [ ] Implement SGF open/save, recent paths, metadata, comments, and generated analysis feedback.
+- [ ] Add component and controller tests for SGF round trips, navigation, analysis refresh, and thread-safe redraws.
+
+Done when an existing SGF can be opened, analyzed, navigated, edited, and saved from the Qt UI.
+
+## 4. Port Play, Teaching, and Training
+
+- [ ] Implement player setup, AI strategy settings, human-like model settings, and play-versus-AI flow.
+- [ ] Implement timer behavior, mistake coloring, sounds where supported, teaching undo, and training feedback.
+- [ ] Implement self-play/setup-game workflows and analysis modes: extra, sweep, equalize, alternatives, local, and full-game reanalysis.
+- [ ] Implement tsumego frame generation and region analysis UI.
+- [ ] Add deterministic controller tests with fake engines; keep KataGo strategy coverage as an integration test.
+
+Done when normal play, teaching, and training use cases work at parity with the required functionality list in `AGENTS.md`.
+
+## 5. Port Settings, Localization, and Remote Engine Support
+
+- [ ] Build Qt settings dialogs for general, engine, AI, timer, and trainer configuration.
+- [ ] Connect locale switching to Qt retranslation and per-language font selection.
+- [ ] Build remote-engine configuration, reconnect status, warnings, and recovery UI using core events.
+- [ ] Test custom, local, and remote engine backend selection without widget mocks.
+
+Done when settings changes persist and apply immediately, language changes retranslate the active UI, and remote recovery is visible in Qt.
+
+## 6. Release Readiness
+
+- [ ] Add a core-only CI job that runs without Kivy installed.
+- [ ] Add a Qt headless smoke-test job and keep KataGo integration tests separately marked.
+- [ ] Run KataGo integration tests with `RUSTICL_ENABLE=radeonsi`; rerun the tuner after changing KataGo, its model, or analysis config.
+- [ ] Remove Kivy runtime/build dependencies only after Qt reaches required-feature parity.
+- [ ] Document packaging for Linux/Wayland and supported KataGo asset locations.
+
+Done when the Qt frontend passes its smoke/integration suites and can be packaged without a Kivy runtime dependency.