diff --git a/.forgejo/workflows/desktop.yml b/.forgejo/workflows/desktop.yml
index a4c7259..1f29cf8 100644
--- a/.forgejo/workflows/desktop.yml
+++ b/.forgejo/workflows/desktop.yml
@@ -1,6 +1,13 @@
-# Tauri desktop (Linux) build — SEPARATE from ci.yml on purpose: this is a heavy
-# Rust + AppImage build (~20-40 min) that should NOT run on backend/frontend-only
-# pushes. Scoped to desktop/** (+ this file). Produces the .deb and .AppImage.
+# Tauri desktop (Linux) build — SEPARATE from ci.yml on purpose: a Rust + AppImage
+# build that shouldn't run on server-only pushes. Produces the .deb and .AppImage.
+#
+# It DOES run on frontend changes. tauri's generate_context! embeds the built
+# frontend in the binary, so a frontend commit that never triggers this ships to
+# the web and silently never reaches the desktop app — and desktop, web and Android
+# are peer surfaces held to one quality bar, not a primary and its fallbacks. The
+# filter was once narrowed to the adapter/bridge directories against a "~20-40 min"
+# build; measured runs are 4-5 minutes, so the cost that justified the narrowing
+# isn't there.
 #
 # Toolchain comes from the ci-tauri image (Rust + Node + WebKitGTK 4.1 + tauri-cli);
 # runs-on is just a registered scheduling label (Label Model B), not a per-purpose
@@ -13,10 +20,11 @@ on:
     tags: ["v*"]
     paths:
       - "desktop/**"
-      # The desktop app embeds the frontend, and the data seam / Tauri bridge are
-      # what the offline core rides on — rebuild the app when those change too.
-      - "frontend/src/adapters/**"
-      - "frontend/src/desktop/**"
+      # The whole frontend, not just the adapter/bridge seam: it is compiled INTO
+      # the desktop binary, so any part of it changing means the shipped app is out
+      # of date. Config and lockfile included — a dependency bump changes the bundle
+      # as surely as a component does.
+      - "frontend/**"
       - ".forgejo/workflows/desktop.yml"
   workflow_dispatch:
 
diff --git a/frontend/src/composables/useReducedMotion.ts b/frontend/src/composables/useReducedMotion.ts
new file mode 100644
index 0000000..889dcfb
--- /dev/null
+++ b/frontend/src/composables/useReducedMotion.ts
@@ -0,0 +1,43 @@
+import { onBeforeUnmount, readonly, ref, type Ref } from "vue";
+
+const QUERY = "(prefers-reduced-motion: reduce)";
+
+/**
+ * Whether the user has asked their system to reduce motion.
+ *
+ * The CSS half of this lives in style.css and neutralises every declarative
+ * transition on its own. This is for the half CSS can't reach: motion driven from
+ * JavaScript — the FLIP reflow and the card↔editor morph — where the honest
+ * response isn't a faster animation but no animation at all, jumping straight to
+ * the final state.
+ *
+ * Reactive rather than a one-shot read: the setting can change while the app is
+ * open (a system toggle, or a "reduce motion during battery saver" rule), and a
+ * board that keeps sliding until relaunch would be ignoring an answer already given.
+ */
+export function useReducedMotion(): Readonly<Ref<boolean>> {
+  const reduced = ref(prefersReducedMotion());
+
+  // Guard the whole listener: SSR and test environments have no matchMedia, and
+  // this must degrade to "motion is fine" rather than throwing during setup.
+  if (typeof window !== "undefined" && typeof window.matchMedia === "function") {
+    const media = window.matchMedia(QUERY);
+    const update = (e: MediaQueryListEvent) => {
+      reduced.value = e.matches;
+    };
+    media.addEventListener("change", update);
+    onBeforeUnmount(() => media.removeEventListener("change", update));
+  }
+
+  return readonly(reduced);
+}
+
+/**
+ * The same answer without a component instance — for module-level helpers and
+ * one-off checks inside an event handler, where there is no lifecycle to hang a
+ * listener on.
+ */
+export function prefersReducedMotion(): boolean {
+  if (typeof window === "undefined" || typeof window.matchMedia !== "function") return false;
+  return window.matchMedia(QUERY).matches;
+}
diff --git a/frontend/src/style.css b/frontend/src/style.css
index de91db8..848d8f4 100644
--- a/frontend/src/style.css
+++ b/frontend/src/style.css
@@ -18,6 +18,27 @@ body {
   }
 }
 
+/* Motion is a feature, not a given. Anyone whose OS says "reduce motion" has told
+ * us something about vestibular comfort or attention, and the answer is to arrive
+ * instantly rather than to animate faster.
+ *
+ * Global and blunt on purpose: it catches every Tailwind `transition` utility
+ * already scattered through the components, and it will catch the M7 motion work
+ * without each new component having to remember. Near-zero rather than `none` so
+ * `transitionend`/`animationend` listeners still fire and no state machine that
+ * waits on them can hang. JS-driven motion can't be reached from CSS — that reads
+ * the same preference through `useReducedMotion`. */
+@media (prefers-reduced-motion: reduce) {
+  *,
+  *::before,
+  *::after {
+    animation-duration: 0.01ms !important;
+    animation-iteration-count: 1 !important;
+    transition-duration: 0.01ms !important;
+    scroll-behavior: auto !important;
+  }
+}
+
 @layer components {
   .icon-btn {
     @apply rounded-md p-1.5 text-neutral-500 transition hover:bg-black/5 focus:outline-none