diff --git a/core/dr-gpu/src/lib.rs b/core/dr-gpu/src/lib.rs
index 23d9629..74afad9 100644
--- a/core/dr-gpu/src/lib.rs
+++ b/core/dr-gpu/src/lib.rs
@@ -281,6 +281,7 @@ impl GpuContext {
         )))
     }
 
+    /// TRACES: NFR-COMPAT-1
     /// Ask one adapter for a device, with the limits the pipeline needs.
     async fn device_from(adapter: &wgpu::Adapter) -> Result<(wgpu::Device, wgpu::Queue), GpuError> {
         adapter
diff --git a/docs/requirements.md b/docs/requirements.md
index bd297c2..6eca050 100644
--- a/docs/requirements.md
+++ b/docs/requirements.md
@@ -1887,24 +1887,46 @@ selection.
 
 ### 4.8 Compatibility baseline
 
-**NFR-COMPAT-1 — Supported hardware.** Every §4.1 Android figure is meaningless without this. State:
+**NFR-COMPAT-1 — Supported hardware.** Stated 2026-09-19 from what the build enforces and the
+hardware the figures are taken on. Every §4.1 Android figure is measured against this.
 
-- Minimum and target Android API level (targetSdk 36 is currently required for Play distribution)
-- Minimum Vulkan version and the required feature and limit set — including whether `shaderFloat16`
-  and 16-bit storage are required, since **FR-DEV-2's f16 pipeline depends on them and their
-  absence would jeopardise R1**
-- Minimum device RAM, and minimum desktop Vulkan/Mesa versions
-- The **specific** reference Android device the §4.1 column is measured on, plus a secondary device
-  from a different GPU vendor
+| | Baseline |
+|---|---|
+| Android API | **minSdk 28**, targetSdk 36 (`docker/android/Dockerfile` `MIN_API`/`ANDROID_API`; the linker targets 28, so the binary runs on the oldest level it claims) |
+| GPU, both platforms | A **Vulkan** adapter accepted by wgpu at its **default limits** — not the downlevel tier — because storage textures in compute shaders are required; `dr_gpu::GpuContext::device_from` states this as the floor. No optional feature is required: `required_features` is empty. The pipeline stores intermediates in `Rgba16Float` textures, which are core Vulkan; **`shaderFloat16` arithmetic is not required** and FR-DEV-2's "16-bit float" is a storage precision, not a shader-arithmetic one. The GL backend is accepted on desktop as a last resort |
+| Desktop | Linux with a Mesa or vendor Vulkan driver the reference machine's era or later; Windows under NFR-COMPAT-2's installer. No minimum Mesa version is asserted beyond "wgpu's default limits are met" |
+| RAM | No figure asserted; NFR-P8's budgets are the constraint, not the device's total |
+| **Reference Android device** | **HONOR ROD2-W09**, Qualcomm SM8635 (Adreno), 12 GB, Android 16 / API 36, 1920×3000 at 400 dpi. Every Android column in §4.1 is measured on it |
+| Second-vendor device | **None.** The clause asking for a Mali or PowerVR device is **unmet and known unmet**: no such hardware exists in the project, and S2's two-vendor run is blocked on it (#47). Until one exists, an Android figure in this document is an Adreno figure |
 
 Adreno, Mali, and PowerVR diverge significantly in compute behaviour and in external-memory interop
 — exactly what spike S1 tests. The spec already applies this reasoning to desktop drivers; it
-applies at least as strongly on Android.
+applies at least as strongly on Android, which is why the missing second vendor is recorded as a
+gap rather than dropped.
 
-**NFR-COMPAT-2 — Distribution channels.** State the v1 channels (e.g. Flatpak and AppImage on Linux;
-Play Store and/or F-Droid on Android). Play distribution is what makes ARCH §6.9's constraints binding —
-a sideloaded or F-Droid build could use different permissions, so the channel decision and the
-storage design are coupled.
+*A figure worth noting.* At 400 dpi the reference tablet's portrait width is roughly 768 logical
+pixels, which is under D15's assumed ~1024 and under `EXPANDED_MIN_WIDTH`. Whether Slint's scale
+factor agrees with the platform density is open issue N6; this row records the measurement and
+does not resolve it.
+
+**NFR-COMPAT-2 — Distribution channels.** Decided 2026-09-19. Every channel is
+**self-distribution**: built by the Gitea CI from one commit, installed by hand, and published to
+no store or catalogue. That is a consequence of D13 — the face weights' grant rules out every
+public channel — and it is the position until those weights are replaced.
+
+| Platform | Channel | Built by |
+|---|---|---|
+| Linux | Arch package (`packaging/PKGBUILD`) | CI, `packaging/pkg/` |
+| Linux | Flatpak from the manifest in `packaging/flatpak/`, installed locally — **not** submitted to Flathub | CI |
+| Android | Signed release APK, sideloaded (`docker/android/assemble-apk.sh`, the release key of 2026-09-11) — **not** Play, **not** F-Droid | CI |
+| Windows | NSIS per-user installer cross-built from Linux (`docker/windows/`, FR-PLAT-WIN-3) | CI |
+
+Two consequences the channel decision has on the requirements above it. ARCH §6.9's SAF-only
+storage model was written because Play would reject anything else; a sideloaded build *could*
+request broader permissions, and FR-PLAT-AND-1 keeps SAF anyway, because the design is right on
+its own terms and because the day a public channel opens is not the day to redesign storage.
+And S11, the Play permissions dry-run, becomes a pre-publication step rather than a Tier-1 spike:
+there is nothing to submit until D13 is closed.
 
 ### 4.9 Accessibility and internationalisation
 
diff --git a/docs/traceability.md b/docs/traceability.md
index 47efe5a..6905421 100644
--- a/docs/traceability.md
+++ b/docs/traceability.md
@@ -10,18 +10,18 @@ Denominators are parsed from [`requirements.md`](requirements.md) at run time, n
 | Metric | Value |
 |---|---|
 | Source files scanned | 354 |
-| TRACES tags found | 1500 |
+| TRACES tags found | 1501 |
 | Requirements defined | 171 |
 | Requirements deferred (post-v1) | 24 |
-| Requirements covered | 138 |
-| **Coverage** | **80.7%** (138/171) |
+| Requirements covered | 139 |
+| **Coverage** | **81.3%** (139/171) |
 
 ### By type
 
 | Type | Covered | Defined |
 |---|---|---|
 | FR | 103 | 116 |
-| NFR | 32 | 48 |
+| NFR | 33 | 48 |
 | R | 3 | 7 |
 
 ## Orphan tags
@@ -77,7 +77,7 @@ _None._
 | FR-DEV-3f | [`core/dr-film/src/bake.rs:271`](../core/dr-film/src/bake.rs#L271), [`core/dr-film/src/bake.rs:62`](../core/dr-film/src/bake.rs#L62), [`core/dr-film/src/boolean_grain.rs:1`](../core/dr-film/src/boolean_grain.rs#L1), [`core/dr-film/src/boolean_grain.rs:78`](../core/dr-film/src/boolean_grain.rs#L78), [`core/dr-film/src/grain.rs:140`](../core/dr-film/src/grain.rs#L140), [`core/dr-film/src/grain.rs:1`](../core/dr-film/src/grain.rs#L1), [`core/dr-film/src/grain.rs:302`](../core/dr-film/src/grain.rs#L302), [`core/dr-film/src/grain.rs:79`](../core/dr-film/src/grain.rs#L79), [`core/dr-film/src/lib.rs:160`](../core/dr-film/src/lib.rs#L160), [`core/dr-film/src/lib.rs:1`](../core/dr-film/src/lib.rs#L1), [`core/dr-film/src/profile.rs:100`](../core/dr-film/src/profile.rs#L100), [`core/dr-film/src/profile.rs:142`](../core/dr-film/src/profile.rs#L142), [`core/dr-film/src/profile.rs:182`](../core/dr-film/src/profile.rs#L182), [`core/dr-film/src/profile.rs:259`](../core/dr-film/src/profile.rs#L259), [`core/dr-film/src/profile.rs:502`](../core/dr-film/src/profile.rs#L502), [`core/dr-film/src/profile.rs:73`](../core/dr-film/src/profile.rs#L73), [`core/dr-gpu/src/adjust.rs:139`](../core/dr-gpu/src/adjust.rs#L139), [`core/dr-gpu/src/adjust.rs:196`](../core/dr-gpu/src/adjust.rs#L196), [`core/dr-gpu/src/adjust.rs:357`](../core/dr-gpu/src/adjust.rs#L357), [`core/dr-gpu/src/adjust.rs:483`](../core/dr-gpu/src/adjust.rs#L483), [`core/dr-gpu/src/adjust.rs:77`](../core/dr-gpu/src/adjust.rs#L77), [`core/dr-gpu/tests/film_sim.rs:191`](../core/dr-gpu/tests/film_sim.rs#L191), [`core/dr-gpu/tests/film_sim.rs:1`](../core/dr-gpu/tests/film_sim.rs#L1), [`core/dr-pipeline/src/graph.rs:103`](../core/dr-pipeline/src/graph.rs#L103), [`core/dr-pipeline/src/graph.rs:168`](../core/dr-pipeline/src/graph.rs#L168), [`core/dr-pipeline/src/graph.rs:566`](../core/dr-pipeline/src/graph.rs#L566), [`core/dr-pipeline/src/operation.rs:1165`](../core/dr-pipeline/src/operation.rs#L1165), [`core/dr-pipeline/src/operation.rs:1193`](../core/dr-pipeline/src/operation.rs#L1193), [`core/dr-pipeline/src/operation.rs:1239`](../core/dr-pipeline/src/operation.rs#L1239), [`core/dr-pipeline/src/operation.rs:1837`](../core/dr-pipeline/src/operation.rs#L1837), [`core/dr-pipeline/src/operation.rs:296`](../core/dr-pipeline/src/operation.rs#L296), [`core/dr-pipeline/src/operation.rs:310`](../core/dr-pipeline/src/operation.rs#L310), [`core/dr-pipeline/src/ops/film_sim.rs:102`](../core/dr-pipeline/src/ops/film_sim.rs#L102), [`core/dr-pipeline/src/ops/film_sim.rs:139`](../core/dr-pipeline/src/ops/film_sim.rs#L139), [`core/dr-pipeline/src/ops/film_sim.rs:163`](../core/dr-pipeline/src/ops/film_sim.rs#L163), [`core/dr-pipeline/src/ops/film_sim.rs:1`](../core/dr-pipeline/src/ops/film_sim.rs#L1), [`core/dr-pipeline/src/ops/film_sim.rs:341`](../core/dr-pipeline/src/ops/film_sim.rs#L341), [`core/dr-pipeline/src/ops/film_sim.rs:43`](../core/dr-pipeline/src/ops/film_sim.rs#L43), [`core/dr-pipeline/src/ops/film_sim.rs:97`](../core/dr-pipeline/src/ops/film_sim.rs#L97), [`core/dr-pipeline/src/sidecar.rs:1028`](../core/dr-pipeline/src/sidecar.rs#L1028), [`core/dr-pipeline/src/sidecar.rs:115`](../core/dr-pipeline/src/sidecar.rs#L115), [`core/dr-pipeline/src/sidecar.rs:188`](../core/dr-pipeline/src/sidecar.rs#L188), [`core/dr-pipeline/src/sidecar.rs:2634`](../core/dr-pipeline/src/sidecar.rs#L2634), [`core/dr-pipeline/src/sidecar.rs:2710`](../core/dr-pipeline/src/sidecar.rs#L2710), [`core/dr-pipeline/src/sidecar.rs:561`](../core/dr-pipeline/src/sidecar.rs#L561), [`core/dr-pipeline/src/sidecar.rs:854`](../core/dr-pipeline/src/sidecar.rs#L854), [`core/dr-pipeline/src/state.rs:100`](../core/dr-pipeline/src/state.rs#L100), [`core/dr-pipeline/src/state.rs:115`](../core/dr-pipeline/src/state.rs#L115), [`core/dr-pipeline/src/state.rs:60`](../core/dr-pipeline/src/state.rs#L60), [`ui/dr-ui/src/develop.rs:1170`](../ui/dr-ui/src/develop.rs#L1170), [`ui/dr-ui/src/develop.rs:4768`](../ui/dr-ui/src/develop.rs#L4768), [`ui/dr-ui/src/develop.rs:4785`](../ui/dr-ui/src/develop.rs#L4785), [`ui/dr-ui/src/develop.rs:4797`](../ui/dr-ui/src/develop.rs#L4797), [`ui/dr-ui/src/develop.rs:4835`](../ui/dr-ui/src/develop.rs#L4835), [`ui/dr-ui/src/develop.rs:4844`](../ui/dr-ui/src/develop.rs#L4844), [`ui/dr-ui/src/develop.rs:4947`](../ui/dr-ui/src/develop.rs#L4947), [`ui/dr-ui/src/develop.rs:5458`](../ui/dr-ui/src/develop.rs#L5458), [`ui/dr-ui/src/develop.rs:5629`](../ui/dr-ui/src/develop.rs#L5629), [`ui/dr-ui/src/develop.rs:8395`](../ui/dr-ui/src/develop.rs#L8395), [`ui/dr-ui/src/lib.rs:2812`](../ui/dr-ui/src/lib.rs#L2812), [`ui/dr-ui/src/lib.rs:799`](../ui/dr-ui/src/lib.rs#L799), [`ui/dr-ui/src/lib.rs:864`](../ui/dr-ui/src/lib.rs#L864), [`ui/dr-ui/src/library.rs:538`](../ui/dr-ui/src/library.rs#L538), [`ui/dr-ui/src/library.rs:806`](../ui/dr-ui/src/library.rs#L806), [`ui/dr-ui/src/presets.rs:422`](../ui/dr-ui/src/presets.rs#L422), [`ui/dr-ui/ui/adjust.slint:1040`](../ui/dr-ui/ui/adjust.slint#L1040), [`ui/dr-ui/ui/adjust.slint:1050`](../ui/dr-ui/ui/adjust.slint#L1050), [`ui/dr-ui/ui/adjust.slint:1268`](../ui/dr-ui/ui/adjust.slint#L1268) |
 | FR-DEV-3h | [`core/dr-decode/src/lib.rs:408`](../core/dr-decode/src/lib.rs#L408), [`core/dr-decode/src/preview.rs:29`](../core/dr-decode/src/preview.rs#L29), [`core/dr-pipeline/src/framing.rs:1067`](../core/dr-pipeline/src/framing.rs#L1067), [`core/dr-pipeline/src/framing.rs:328`](../core/dr-pipeline/src/framing.rs#L328), [`core/dr-pipeline/src/framing.rs:498`](../core/dr-pipeline/src/framing.rs#L498), [`core/dr-types/src/lib.rs:339`](../core/dr-types/src/lib.rs#L339), [`core/dr-types/src/lib.rs:447`](../core/dr-types/src/lib.rs#L447), [`core/dr-types/src/lib.rs:459`](../core/dr-types/src/lib.rs#L459), [`core/dr-types/src/lib.rs:475`](../core/dr-types/src/lib.rs#L475), [`ui/dr-ui/src/develop.rs:140`](../ui/dr-ui/src/develop.rs#L140), [`ui/dr-ui/src/develop.rs:2769`](../ui/dr-ui/src/develop.rs#L2769), [`ui/dr-ui/src/segmentation.rs:499`](../ui/dr-ui/src/segmentation.rs#L499) |
 | FR-DEV-3i | [`core/dr-pipeline/src/mask.rs:558`](../core/dr-pipeline/src/mask.rs#L558), [`core/dr-segment/src/lib.rs:1`](../core/dr-segment/src/lib.rs#L1), [`ui/dr-ui/src/segmentation.rs:1`](../ui/dr-ui/src/segmentation.rs#L1) |
-| FR-DEV-4 | [`core/dr-gpu/src/adjust.rs:770`](../core/dr-gpu/src/adjust.rs#L770), [`core/dr-gpu/src/lib.rs:365`](../core/dr-gpu/src/lib.rs#L365), [`ui/dr-ui/ui/crop.slint:1`](../ui/dr-ui/ui/crop.slint#L1) |
+| FR-DEV-4 | [`core/dr-gpu/src/adjust.rs:770`](../core/dr-gpu/src/adjust.rs#L770), [`core/dr-gpu/src/lib.rs:366`](../core/dr-gpu/src/lib.rs#L366), [`ui/dr-ui/ui/crop.slint:1`](../ui/dr-ui/ui/crop.slint#L1) |
 | FR-DEV-5 | [`core/dr-pipeline/src/graph.rs:1399`](../core/dr-pipeline/src/graph.rs#L1399), [`core/dr-pipeline/src/graph.rs:587`](../core/dr-pipeline/src/graph.rs#L587), [`core/dr-pipeline/src/graph.rs:640`](../core/dr-pipeline/src/graph.rs#L640), [`core/dr-pipeline/src/history.rs:102`](../core/dr-pipeline/src/history.rs#L102), [`core/dr-pipeline/src/history.rs:110`](../core/dr-pipeline/src/history.rs#L110), [`core/dr-pipeline/src/history.rs:127`](../core/dr-pipeline/src/history.rs#L127), [`core/dr-pipeline/src/history.rs:184`](../core/dr-pipeline/src/history.rs#L184), [`core/dr-pipeline/src/history.rs:1`](../core/dr-pipeline/src/history.rs#L1), [`core/dr-pipeline/src/history.rs:214`](../core/dr-pipeline/src/history.rs#L214), [`core/dr-pipeline/src/history.rs:234`](../core/dr-pipeline/src/history.rs#L234), [`core/dr-pipeline/src/history.rs:293`](../core/dr-pipeline/src/history.rs#L293), [`core/dr-pipeline/src/history.rs:479`](../core/dr-pipeline/src/history.rs#L479), [`core/dr-pipeline/src/history.rs:489`](../core/dr-pipeline/src/history.rs#L489), [`core/dr-pipeline/src/history.rs:499`](../core/dr-pipeline/src/history.rs#L499), [`core/dr-pipeline/src/history.rs:526`](../core/dr-pipeline/src/history.rs#L526), [`core/dr-pipeline/src/history.rs:86`](../core/dr-pipeline/src/history.rs#L86), [`core/dr-pipeline/src/sidecar.rs:1018`](../core/dr-pipeline/src/sidecar.rs#L1018), [`core/dr-pipeline/src/sidecar.rs:129`](../core/dr-pipeline/src/sidecar.rs#L129), [`core/dr-pipeline/src/sidecar.rs:2425`](../core/dr-pipeline/src/sidecar.rs#L2425), [`core/dr-pipeline/src/sidecar.rs:2461`](../core/dr-pipeline/src/sidecar.rs#L2461), [`core/dr-pipeline/src/sidecar.rs:2473`](../core/dr-pipeline/src/sidecar.rs#L2473), [`core/dr-pipeline/src/sidecar.rs:288`](../core/dr-pipeline/src/sidecar.rs#L288), [`core/dr-pipeline/src/sidecar.rs:679`](../core/dr-pipeline/src/sidecar.rs#L679), [`core/dr-pipeline/src/sidecar.rs:695`](../core/dr-pipeline/src/sidecar.rs#L695), [`core/dr-pipeline/src/sidecar.rs:835`](../core/dr-pipeline/src/sidecar.rs#L835), [`core/dr-pipeline/src/state.rs:1`](../core/dr-pipeline/src/state.rs#L1), [`core/dr-pipeline/src/state.rs:75`](../core/dr-pipeline/src/state.rs#L75), [`ui/dr-ui/src/develop.rs:4400`](../ui/dr-ui/src/develop.rs#L4400), [`ui/dr-ui/src/develop.rs:4797`](../ui/dr-ui/src/develop.rs#L4797), [`ui/dr-ui/src/develop.rs:5475`](../ui/dr-ui/src/develop.rs#L5475), [`ui/dr-ui/src/develop.rs:5493`](../ui/dr-ui/src/develop.rs#L5493), [`ui/dr-ui/src/develop.rs:5532`](../ui/dr-ui/src/develop.rs#L5532), [`ui/dr-ui/src/develop.rs:5546`](../ui/dr-ui/src/develop.rs#L5546), [`ui/dr-ui/src/develop.rs:5557`](../ui/dr-ui/src/develop.rs#L5557), [`ui/dr-ui/src/develop.rs:5616`](../ui/dr-ui/src/develop.rs#L5616), [`ui/dr-ui/src/develop.rs:5629`](../ui/dr-ui/src/develop.rs#L5629), [`ui/dr-ui/src/develop.rs:5659`](../ui/dr-ui/src/develop.rs#L5659), [`ui/dr-ui/src/develop.rs:5672`](../ui/dr-ui/src/develop.rs#L5672), [`ui/dr-ui/src/develop.rs:5684`](../ui/dr-ui/src/develop.rs#L5684), [`ui/dr-ui/src/develop.rs:5700`](../ui/dr-ui/src/develop.rs#L5700), [`ui/dr-ui/src/develop.rs:5732`](../ui/dr-ui/src/develop.rs#L5732), [`ui/dr-ui/src/develop.rs:5736`](../ui/dr-ui/src/develop.rs#L5736), [`ui/dr-ui/src/develop.rs:5755`](../ui/dr-ui/src/develop.rs#L5755), [`ui/dr-ui/src/develop.rs:5771`](../ui/dr-ui/src/develop.rs#L5771), [`ui/dr-ui/src/develop.rs:6613`](../ui/dr-ui/src/develop.rs#L6613), [`ui/dr-ui/src/develop.rs:6633`](../ui/dr-ui/src/develop.rs#L6633), [`ui/dr-ui/src/develop.rs:6664`](../ui/dr-ui/src/develop.rs#L6664), [`ui/dr-ui/src/develop.rs:6721`](../ui/dr-ui/src/develop.rs#L6721), [`ui/dr-ui/src/develop.rs:6781`](../ui/dr-ui/src/develop.rs#L6781), [`ui/dr-ui/src/develop.rs:772`](../ui/dr-ui/src/develop.rs#L772), [`ui/dr-ui/src/develop.rs:781`](../ui/dr-ui/src/develop.rs#L781), [`ui/dr-ui/src/labels.rs:12`](../ui/dr-ui/src/labels.rs#L12), [`ui/dr-ui/src/labels.rs:278`](../ui/dr-ui/src/labels.rs#L278), [`ui/dr-ui/src/labels.rs:31`](../ui/dr-ui/src/labels.rs#L31), [`ui/dr-ui/src/lib.rs:1860`](../ui/dr-ui/src/lib.rs#L1860), [`ui/dr-ui/src/lib.rs:1865`](../ui/dr-ui/src/lib.rs#L1865), [`ui/dr-ui/src/lib.rs:1928`](../ui/dr-ui/src/lib.rs#L1928), [`ui/dr-ui/src/lib.rs:1937`](../ui/dr-ui/src/lib.rs#L1937), [`ui/dr-ui/src/lib.rs:1949`](../ui/dr-ui/src/lib.rs#L1949), [`ui/dr-ui/src/lib.rs:3080`](../ui/dr-ui/src/lib.rs#L3080), [`ui/dr-ui/src/lib.rs:3100`](../ui/dr-ui/src/lib.rs#L3100), [`ui/dr-ui/src/library.rs:547`](../ui/dr-ui/src/library.rs#L547), [`ui/dr-ui/src/library.rs:832`](../ui/dr-ui/src/library.rs#L832), [`ui/dr-ui/src/presets.rs:1678`](../ui/dr-ui/src/presets.rs#L1678), [`ui/dr-ui/src/presets.rs:373`](../ui/dr-ui/src/presets.rs#L373), [`ui/dr-ui/src/presets.rs:437`](../ui/dr-ui/src/presets.rs#L437), [`ui/dr-ui/src/presets.rs:557`](../ui/dr-ui/src/presets.rs#L557), [`ui/dr-ui/ui/history.slint:191`](../ui/dr-ui/ui/history.slint#L191), [`ui/dr-ui/ui/history.slint:1`](../ui/dr-ui/ui/history.slint#L1), [`ui/dr-ui/ui/history.slint:218`](../ui/dr-ui/ui/history.slint#L218), [`ui/dr-ui/ui/history.slint:303`](../ui/dr-ui/ui/history.slint#L303), [`ui/dr-ui/ui/history.slint:43`](../ui/dr-ui/ui/history.slint#L43), [`ui/dr-ui/ui/history.slint:53`](../ui/dr-ui/ui/history.slint#L53) |
 | FR-DEV-6 | [`core/dr-pipeline/src/preset.rs:1`](../core/dr-pipeline/src/preset.rs#L1), [`core/dr-pipeline/src/preset.rs:390`](../core/dr-pipeline/src/preset.rs#L390), [`core/dr-pipeline/src/preset.rs:423`](../core/dr-pipeline/src/preset.rs#L423), [`core/dr-pipeline/src/starter.rs:1`](../core/dr-pipeline/src/starter.rs#L1), [`core/dr-preset-xmp/src/lib.rs:1`](../core/dr-preset-xmp/src/lib.rs#L1), [`core/dr-types/src/settings.rs:419`](../core/dr-types/src/settings.rs#L419), [`ui/dr-ui/src/develop.rs:5415`](../ui/dr-ui/src/develop.rs#L5415), [`ui/dr-ui/src/develop.rs:5436`](../ui/dr-ui/src/develop.rs#L5436), [`ui/dr-ui/src/lib.rs:1827`](../ui/dr-ui/src/lib.rs#L1827), [`ui/dr-ui/src/lib.rs:2613`](../ui/dr-ui/src/lib.rs#L2613), [`ui/dr-ui/src/lib.rs:2642`](../ui/dr-ui/src/lib.rs#L2642), [`ui/dr-ui/src/library.rs:2427`](../ui/dr-ui/src/library.rs#L2427), [`ui/dr-ui/src/library.rs:500`](../ui/dr-ui/src/library.rs#L500), [`ui/dr-ui/src/library.rs:528`](../ui/dr-ui/src/library.rs#L528), [`ui/dr-ui/src/library_ui.rs:3281`](../ui/dr-ui/src/library_ui.rs#L3281), [`ui/dr-ui/src/library_ui.rs:3864`](../ui/dr-ui/src/library_ui.rs#L3864), [`ui/dr-ui/src/library_ui.rs:628`](../ui/dr-ui/src/library_ui.rs#L628), [`ui/dr-ui/src/preset_store.rs:1`](../ui/dr-ui/src/preset_store.rs#L1), [`ui/dr-ui/src/presets.rs:1`](../ui/dr-ui/src/presets.rs#L1), [`ui/dr-ui/src/presets.rs:707`](../ui/dr-ui/src/presets.rs#L707), [`ui/dr-ui/src/presets.rs:741`](../ui/dr-ui/src/presets.rs#L741), [`ui/dr-ui/ui/adjust.slint:853`](../ui/dr-ui/ui/adjust.slint#L853), [`ui/dr-ui/ui/adjust.slint:878`](../ui/dr-ui/ui/adjust.slint#L878), [`ui/dr-ui/ui/adjust.slint:889`](../ui/dr-ui/ui/adjust.slint#L889), [`ui/dr-ui/ui/adjust.slint:932`](../ui/dr-ui/ui/adjust.slint#L932), [`ui/dr-ui/ui/app.slint:1620`](../ui/dr-ui/ui/app.slint#L1620), [`ui/dr-ui/ui/app.slint:2448`](../ui/dr-ui/ui/app.slint#L2448), [`ui/dr-ui/ui/app.slint:3083`](../ui/dr-ui/ui/app.slint#L3083), [`ui/dr-ui/ui/app.slint:755`](../ui/dr-ui/ui/app.slint#L755), [`ui/dr-ui/ui/app.slint:766`](../ui/dr-ui/ui/app.slint#L766), [`ui/dr-ui/ui/library.slint:1574`](../ui/dr-ui/ui/library.slint#L1574), [`ui/dr-ui/ui/library.slint:1580`](../ui/dr-ui/ui/library.slint#L1580), [`ui/dr-ui/ui/library.slint:4217`](../ui/dr-ui/ui/library.slint#L4217), [`ui/dr-ui/ui/library.slint:4232`](../ui/dr-ui/ui/library.slint#L4232), [`ui/dr-ui/ui/presets.slint:105`](../ui/dr-ui/ui/presets.slint#L105), [`ui/dr-ui/ui/presets.slint:113`](../ui/dr-ui/ui/presets.slint#L113), [`ui/dr-ui/ui/presets.slint:19`](../ui/dr-ui/ui/presets.slint#L19), [`ui/dr-ui/ui/presets.slint:276`](../ui/dr-ui/ui/presets.slint#L276), [`ui/dr-ui/ui/presets.slint:297`](../ui/dr-ui/ui/presets.slint#L297), [`ui/dr-ui/ui/presets.slint:5`](../ui/dr-ui/ui/presets.slint#L5), [`ui/dr-ui/ui/presets.slint:60`](../ui/dr-ui/ui/presets.slint#L60), [`ui/dr-ui/ui/settings.slint:113`](../ui/dr-ui/ui/settings.slint#L113), [`ui/dr-ui/ui/settings.slint:658`](../ui/dr-ui/ui/settings.slint#L658) |
 | FR-DEV-7 | [`core/dr-pipeline/src/history.rs:214`](../core/dr-pipeline/src/history.rs#L214), [`core/dr-pipeline/src/history.rs:499`](../core/dr-pipeline/src/history.rs#L499), [`core/dr-pipeline/src/history.rs:526`](../core/dr-pipeline/src/history.rs#L526), [`ui/dr-ui/src/develop.rs:4334`](../ui/dr-ui/src/develop.rs#L4334), [`ui/dr-ui/src/develop.rs:4375`](../ui/dr-ui/src/develop.rs#L4375), [`ui/dr-ui/src/develop.rs:5571`](../ui/dr-ui/src/develop.rs#L5571), [`ui/dr-ui/src/develop.rs:5588`](../ui/dr-ui/src/develop.rs#L5588), [`ui/dr-ui/src/develop.rs:5700`](../ui/dr-ui/src/develop.rs#L5700), [`ui/dr-ui/src/develop.rs:5732`](../ui/dr-ui/src/develop.rs#L5732), [`ui/dr-ui/src/develop.rs:6664`](../ui/dr-ui/src/develop.rs#L6664), [`ui/dr-ui/src/develop.rs:6781`](../ui/dr-ui/src/develop.rs#L6781), [`ui/dr-ui/src/develop.rs:797`](../ui/dr-ui/src/develop.rs#L797), [`ui/dr-ui/src/lib.rs:1937`](../ui/dr-ui/src/lib.rs#L1937), [`ui/dr-ui/src/lib.rs:2009`](../ui/dr-ui/src/lib.rs#L2009), [`ui/dr-ui/src/lib.rs:2023`](../ui/dr-ui/src/lib.rs#L2023), [`ui/dr-ui/src/lib.rs:3019`](../ui/dr-ui/src/lib.rs#L3019), [`ui/dr-ui/src/lib.rs:3080`](../ui/dr-ui/src/lib.rs#L3080), [`ui/dr-ui/src/lib.rs:3152`](../ui/dr-ui/src/lib.rs#L3152), [`ui/dr-ui/src/lib.rs:405`](../ui/dr-ui/src/lib.rs#L405), [`ui/dr-ui/ui/app.slint:128`](../ui/dr-ui/ui/app.slint#L128), [`ui/dr-ui/ui/app.slint:2355`](../ui/dr-ui/ui/app.slint#L2355), [`ui/dr-ui/ui/app.slint:2370`](../ui/dr-ui/ui/app.slint#L2370), [`ui/dr-ui/ui/app.slint:2690`](../ui/dr-ui/ui/app.slint#L2690), [`ui/dr-ui/ui/history.slint:102`](../ui/dr-ui/ui/history.slint#L102), [`ui/dr-ui/ui/history.slint:1`](../ui/dr-ui/ui/history.slint#L1), [`ui/dr-ui/ui/history.slint:226`](../ui/dr-ui/ui/history.slint#L226), [`ui/dr-ui/ui/history.slint:53`](../ui/dr-ui/ui/history.slint#L53), [`ui/dr-ui/ui/widgets.slint:71`](../ui/dr-ui/ui/widgets.slint#L71) |
@@ -142,7 +142,8 @@ _None._
 | NFR-ARCH-2 | [`core/dr-catalog/src/jobs.rs:1`](../core/dr-catalog/src/jobs.rs#L1), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/library.rs:4052`](../ui/dr-ui/src/library.rs#L4052) |
 | NFR-ARCH-3 | [`ui/dr-ui/src/export.rs:1809`](../ui/dr-ui/src/export.rs#L1809), [`ui/dr-ui/src/export.rs:1836`](../ui/dr-ui/src/export.rs#L1836), [`ui/dr-ui/src/export.rs:412`](../ui/dr-ui/src/export.rs#L412), [`ui/dr-ui/src/export.rs:438`](../ui/dr-ui/src/export.rs#L438), [`ui/dr-ui/src/lib.rs:2786`](../ui/dr-ui/src/lib.rs#L2786), [`ui/dr-ui/ui/app.slint:1102`](../ui/dr-ui/ui/app.slint#L1102), [`ui/dr-ui/ui/library.slint:4278`](../ui/dr-ui/ui/library.slint#L4278) |
 | NFR-ARCH-4 | [`core/dr-catalog/src/error.rs:1`](../core/dr-catalog/src/error.rs#L1), [`core/dr-export/src/error.rs:1`](../core/dr-export/src/error.rs#L1), [`core/dr-thumbs/src/error.rs:1`](../core/dr-thumbs/src/error.rs#L1), [`core/dr-xmp/src/lib.rs:798`](../core/dr-xmp/src/lib.rs#L798), [`platform/dr-plat/src/storage.rs:148`](../platform/dr-plat/src/storage.rs#L148), [`ui/dr-ui/src/export.rs:514`](../ui/dr-ui/src/export.rs#L514) |
-| NFR-OPS-1 | [`core/dr-gpu/src/lib.rs:336`](../core/dr-gpu/src/lib.rs#L336), [`platform/dr-plat/src/diagnostics.rs:1`](../platform/dr-plat/src/diagnostics.rs#L1), [`platform/dr-plat/src/diagnostics/bundle.rs:1`](../platform/dr-plat/src/diagnostics/bundle.rs#L1), [`platform/dr-plat/src/state.rs:1`](../platform/dr-plat/src/state.rs#L1), [`ui/dr-ui/src/lib.rs:1209`](../ui/dr-ui/src/lib.rs#L1209), [`ui/dr-ui/ui/app.slint:1389`](../ui/dr-ui/ui/app.slint#L1389), [`ui/dr-ui/ui/app.slint:72`](../ui/dr-ui/ui/app.slint#L72), [`ui/dr-ui/ui/settings.slint:144`](../ui/dr-ui/ui/settings.slint#L144), [`ui/dr-ui/ui/settings.slint:942`](../ui/dr-ui/ui/settings.slint#L942) |
+| NFR-COMPAT-1 | [`core/dr-gpu/src/lib.rs:284`](../core/dr-gpu/src/lib.rs#L284) |
+| NFR-OPS-1 | [`core/dr-gpu/src/lib.rs:337`](../core/dr-gpu/src/lib.rs#L337), [`platform/dr-plat/src/diagnostics.rs:1`](../platform/dr-plat/src/diagnostics.rs#L1), [`platform/dr-plat/src/diagnostics/bundle.rs:1`](../platform/dr-plat/src/diagnostics/bundle.rs#L1), [`platform/dr-plat/src/state.rs:1`](../platform/dr-plat/src/state.rs#L1), [`ui/dr-ui/src/lib.rs:1209`](../ui/dr-ui/src/lib.rs#L1209), [`ui/dr-ui/ui/app.slint:1389`](../ui/dr-ui/ui/app.slint#L1389), [`ui/dr-ui/ui/app.slint:72`](../ui/dr-ui/ui/app.slint#L72), [`ui/dr-ui/ui/settings.slint:144`](../ui/dr-ui/ui/settings.slint#L144), [`ui/dr-ui/ui/settings.slint:942`](../ui/dr-ui/ui/settings.slint#L942) |
 | NFR-OPS-2 | [`platform/dr-plat/src/crash.rs:1`](../platform/dr-plat/src/crash.rs#L1) |
 | NFR-OPS-3 | [`core/dr-types/src/settings.rs:1`](../core/dr-types/src/settings.rs#L1), [`ui/dr-ui/src/settings_store.rs:1`](../ui/dr-ui/src/settings_store.rs#L1) |
 | NFR-P1 | [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/scan.rs:1`](../core/dr-catalog/src/scan.rs#L1), [`core/dr-catalog/src/walk.rs:162`](../core/dr-catalog/src/walk.rs#L162), [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`tools/bench/src/catalog_open.rs:1`](../tools/bench/src/catalog_open.rs#L1) |
@@ -170,7 +171,7 @@ _None._
 | NFR-SEC-4 | [`platform/dr-plat/src/diagnostics/bundle.rs:1`](../platform/dr-plat/src/diagnostics/bundle.rs#L1) |
 | NFR-SEC-5 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:751`](../core/dr-catalog/src/schema.rs#L751), [`platform/dr-plat/src/diagnostics/bundle.rs:1`](../platform/dr-plat/src/diagnostics/bundle.rs#L1), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/identity.rs:1`](../ui/dr-ui/src/identity.rs#L1), [`ui/dr-ui/src/identity_ui.rs:1`](../ui/dr-ui/src/identity_ui.rs#L1), [`ui/dr-ui/ui/identity.slint:1`](../ui/dr-ui/ui/identity.slint#L1) |
 | R3 | [`core/dr-export/src/lib.rs:1`](../core/dr-export/src/lib.rs#L1), [`core/dr-pipeline/src/lib.rs:1`](../core/dr-pipeline/src/lib.rs#L1) |
-| R4 | [`core/dr-gpu/src/lib.rs:365`](../core/dr-gpu/src/lib.rs#L365) |
+| R4 | [`core/dr-gpu/src/lib.rs:366`](../core/dr-gpu/src/lib.rs#L366) |
 | R6 | [`core/dr-sync-nextcloud/src/lib.rs:1`](../core/dr-sync-nextcloud/src/lib.rs#L1) |
 
 ## Deferred (post-v1)
@@ -204,7 +205,7 @@ Defined in `requirements.md` and marked `(post-v1)` on the defining line. Not in
 
 ## Not yet tagged
 
-33 of 171 requirements have no implementation tag. Expected while the codebase is young; each should gain one as it is built.
+32 of 171 requirements have no implementation tag. Expected while the codebase is young; each should gain one as it is built.
 
 <details><summary>Show untagged requirements</summary>
 
@@ -223,7 +224,6 @@ Defined in `requirements.md` and marked `(post-v1)` on the defining line. Not in
 - FR-RAW-2
 - NFR-A11Y-1
 - NFR-ARCH-1
-- NFR-COMPAT-1
 - NFR-COMPAT-2
 - NFR-OPS-4
 - NFR-P10