diff --git a/.github/workflows/brrrboard-apk-only.yml b/.github/workflows/brrrboard-apk-only.yml
new file mode 100644
index 0000000000..8a895ac508
--- /dev/null
+++ b/.github/workflows/brrrboard-apk-only.yml
@@ -0,0 +1,84 @@
+name: brrrBoard — APK Only (Audit) # independent APK delivery path
+
+on:
+  push:
+    branches:
+      - 'brrrboard-audit-*'
+
+permissions:
+  contents: write
+
+jobs:
+  apk:
+    runs-on: ubuntu-latest
+    timeout-minutes: 25
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Restore persistent debug signing key
+        shell: bash
+        run: |
+          set -euo pipefail
+          test -f .github/debug.keystore
+          mkdir -p "$HOME/.android"
+          cp .github/debug.keystore "$HOME/.android/debug.keystore"
+          chmod 600 "$HOME/.android/debug.keystore"
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: temurin
+
+      - name: Set up Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Build debug APK
+        shell: bash
+        run: |
+          set -euo pipefail
+          chmod +x gradlew
+          ./gradlew --no-daemon --stacktrace assembleDebug
+
+      - name: Verify APK and signing identity
+        shell: bash
+        run: |
+          set -euo pipefail
+          APK="$(find app/build/outputs/apk/debug -maxdepth 1 -type f -name '*-debug.apk' | head -n 1)"
+          test -n "$APK"
+          test -s "$APK"
+          APKSIGNER="$(find "$ANDROID_HOME/build-tools" -type f -name apksigner | sort -V | tail -n 1)"
+          CERT_OUTPUT="$("$APKSIGNER" verify --print-certs "$APK")"
+          EXPECTED_CERT="$(keytool -list -v -keystore .github/debug.keystore -storepass android -alias androiddebugkey | sed -n 's/^.*SHA256:[[:space:]]*//p' | head -n 1 | tr -d ':' | tr '[:lower:]' '[:upper:]')"
+          ACTUAL_CERT="$(printf '%s\n' "$CERT_OUTPUT" | sed -n 's/^.*SHA-256 digest:[[:space:]]*//p' | head -n 1 | tr -d ':' | tr '[:lower:]' '[:upper:]')"
+          test -n "$EXPECTED_CERT"
+          test -n "$ACTUAL_CERT"
+          test "$EXPECTED_CERT" = "$ACTUAL_CERT"
+          SHA256="$(sha256sum "$APK" | cut -d' ' -f1)"
+          echo "APK=$APK" >> "$GITHUB_ENV"
+          echo "SHA256=$SHA256" >> "$GITHUB_ENV"
+          echo "APK_SIZE=$(stat -c '%s' "$APK")" >> "$GITHUB_ENV"
+          echo "APK: $APK"
+          echo "SHA-256: $SHA256"
+
+      - name: Upload APK artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: brrrBoard-debug-apk-${{ github.sha }}
+          path: ${{ env.APK }}
+          if-no-files-found: error
+          retention-days: 14
+
+      - name: Publish audit release
+        env:
+          GH_TOKEN: ${{ github.token }}
+        shell: bash
+        run: |
+          set -euo pipefail
+          SHORT_SHA="${GITHUB_SHA::7}"
+          STAMP="$(date -u +'%Y%m%d-%H%M%S')"
+          TAG="brrrboard-audit-${STAMP}-${SHORT_SHA}"
+          gh release create "$TAG" "$APK" --repo "$GITHUB_REPOSITORY" --target "$GITHUB_SHA" --title "brrrBoard Audit APK — ${SHORT_SHA}" --notes "APK-only audit build. Commit: $GITHUB_SHA. SHA-256: $SHA256. Built with the tracked persistent debug signing key." --prerelease
\ No newline at end of file
diff --git a/.github/workflows/brrrboard-build-debug.yml b/.github/workflows/brrrboard-build-debug.yml
new file mode 100644
index 0000000000..da7e742301
--- /dev/null
+++ b/.github/workflows/brrrboard-build-debug.yml
@@ -0,0 +1,123 @@
+name: brrrBoard — Build Debug APK
+
+on:
+  push:
+    branches:
+      - main
+      - 'brrrboard-audit-*'
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+concurrency:
+  group: brrrBoard-debug-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    timeout-minutes: 45
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Restore persistent debug signing key
+        shell: bash
+        run: |
+          set -euo pipefail
+          test -f .github/debug.keystore
+          mkdir -p "$HOME/.android"
+          cp .github/debug.keystore "$HOME/.android/debug.keystore"
+          chmod 600 "$HOME/.android/debug.keystore"
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21' # Robolectric SDK 36 requires JDK 21
+          distribution: temurin
+
+      - name: Set up Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Build debug APK
+        shell: bash
+        run: |
+          set -euo pipefail
+          chmod +x gradlew
+          ./gradlew --no-daemon --stacktrace assembleDebug
+
+      - name: Verify APK and signing identity
+        shell: bash
+        run: |
+          set -euo pipefail
+          APK="$(find app/build/outputs/apk/debug -maxdepth 1 -type f -name '*-debug.apk' | head -n 1)"
+          test -n "$APK"
+          test -s "$APK"
+
+          APKSIGNER="$(find "$ANDROID_HOME/build-tools" -type f -name apksigner | sort -V | tail -n 1)"
+          CERT_OUTPUT="$("$APKSIGNER" verify --print-certs "$APK")"
+          printf '%s\n' "$CERT_OUTPUT"
+
+          EXPECTED_CERT="$(keytool -list -v -keystore .github/debug.keystore -storepass android -alias androiddebugkey | sed -n 's/^.*SHA256:[[:space:]]*//p' | head -n 1 | tr -d ':' | tr '[:lower:]' '[:upper:]')"
+          ACTUAL_CERT="$(printf '%s\n' "$CERT_OUTPUT" | sed -n 's/^.*SHA-256 digest:[[:space:]]*//p' | head -n 1 | tr -d ':' | tr '[:lower:]' '[:upper:]')"
+
+          test -n "$EXPECTED_CERT"
+          test -n "$ACTUAL_CERT"
+          test "$EXPECTED_CERT" = "$ACTUAL_CERT"
+
+          SHA256="$(sha256sum "$APK" | cut -d' ' -f1)"
+          echo "APK=$APK" >> "$GITHUB_ENV"
+          echo "SHA256=$SHA256" >> "$GITHUB_ENV"
+          echo "APK_SIZE=$(stat -c '%s' "$APK")" >> "$GITHUB_ENV"
+
+          echo "APK: $APK"
+          echo "SHA-256: $SHA256"
+          ls -lh "$APK"
+
+      - name: Upload debug APK artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: brrrBoard-debug-apk-${{ github.sha }}
+          path: ${{ env.APK }}
+          if-no-files-found: error
+          retention-days: 14
+
+      - name: Run unit tests
+        id: unit_tests
+        continue-on-error: true
+        shell: bash
+        run: |
+          set -euo pipefail
+          ./gradlew --no-daemon --stacktrace testRunTests
+
+      - name: Fail workflow when tests fail
+        if: steps.unit_tests.outcome == 'failure'
+        shell: bash
+        run: |
+          echo "Unit tests failed; APK was still built, verified, and published for audit/testing."
+          exit 1
+
+      - name: Publish GitHub release
+        if: github.ref_name != 'main' || steps.unit_tests.outcome == 'success'
+        env:
+          GH_TOKEN: ${{ github.token }}
+        shell: bash
+        run: |
+          set -euo pipefail
+          VERSION_NAME="$(sed -n 's/.*versionName = "\([^"]*\)".*/\1/p' app/build.gradle.kts | head -n 1)"
+          SHORT_SHA="${GITHUB_SHA::7}"
+          STAMP="$(date -u +'%Y%m%d-%H%M%S')"
+
+          if [ "$GITHUB_REF_NAME" = "main" ]; then
+            TAG="brrrboard-debug-${STAMP}-${SHORT_SHA}"
+            TITLE="brrrBoard Debug — ${VERSION_NAME} — ${SHORT_SHA}"
+            gh release create "$TAG" "$APK" --repo "$GITHUB_REPOSITORY" --target "$GITHUB_SHA" --title "$TITLE" --notes "Verified debug APK. Commit: $GITHUB_SHA. SHA-256: $SHA256. Uses the persistent debug signing key so later debug builds can update the same debug installation."
+          else
+            TAG="brrrboard-test-${STAMP}-${SHORT_SHA}"
+            TITLE="brrrBoard Test Build — ${SHORT_SHA}"
+            gh release create "$TAG" "$APK" --repo "$GITHUB_REPOSITORY" --target "$GITHUB_SHA" --title "$TITLE" --notes "Audit/test build. Commit: $GITHUB_SHA. SHA-256: $SHA256." --prerelease
+          fi
\ No newline at end of file
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index a26e7e0f06..ec5b4b3cc9 100755
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -9,7 +9,7 @@ abstract class GitCommitCountValueSource : ValueSource<Int, ValueSourceParameter
     abstract val execOperations: ExecOperations
 
     override fun obtain(): Int {
-        val timeBasedCode = (System.currentTimeMillis() / 60_000L)
+        val timeBasedCode = (System.currentTimeMillis() / 1_000L)
             .coerceAtMost(Int.MAX_VALUE.toLong())
             .toInt()
 
diff --git a/app/src/main/java/helium314/keyboard/latin/utils/SubtypeSettings.kt b/app/src/main/java/helium314/keyboard/latin/utils/SubtypeSettings.kt
index 7d1fce4fd8..ffb5592e39 100644
--- a/app/src/main/java/helium314/keyboard/latin/utils/SubtypeSettings.kt
+++ b/app/src/main/java/helium314/keyboard/latin/utils/SubtypeSettings.kt
@@ -235,6 +235,7 @@ object SubtypeSettings {
     }
 
     private fun loadResourceSubtypes(resources: Resources) {
+        resourceSubtypesByLocale.clear()
         getResourceSubtypes(resources).forEach {
             resourceSubtypesByLocale.getOrPut(it.locale()) { ArrayList(2) }.add(it)
         }
diff --git a/app/src/test/java/helium314/keyboard/SubtypeTest.kt b/app/src/test/java/helium314/keyboard/SubtypeTest.kt
index 1b3ac8f433..c5b53af803 100644
--- a/app/src/test/java/helium314/keyboard/SubtypeTest.kt
+++ b/app/src/test/java/helium314/keyboard/SubtypeTest.kt
@@ -59,7 +59,11 @@ class SubtypeTest {
 
     @Test fun subtypeStaysEnabledOnEdits() {
         val prefs = latinIME.prefs()
-        prefs.edit().putString(Settings.PREF_ADDITIONAL_SUBTYPES, "").apply() // clear it for convenience
+        prefs.edit()
+            .putString(Settings.PREF_ADDITIONAL_SUBTYPES, "")
+            .putString(Settings.PREF_ENABLED_SUBTYPES, "")
+            .putString(Settings.PREF_SELECTED_SUBTYPE, "")
+            .apply()
 
         // edit enabled resource subtype
         val from = SubtypeSettings.getResourceSubtypesForLocale("es".constructLocale()).first()
diff --git a/app/src/test/java/helium314/keyboard/latin/StringUtilsTest.kt b/app/src/test/java/helium314/keyboard/latin/StringUtilsTest.kt
index 6d49547803..7c4a08da32 100644
--- a/app/src/test/java/helium314/keyboard/latin/StringUtilsTest.kt
+++ b/app/src/test/java/helium314/keyboard/latin/StringUtilsTest.kt
@@ -24,6 +24,7 @@ import org.robolectric.annotation.Config
 import kotlin.system.measureTimeMillis
 import kotlin.test.Test
 import kotlin.test.assertEquals
+import kotlin.test.assertTrue
 
 // todo: actually this test could/should be significantly expanded...
 @RunWith(RobolectricTestRunner::class)
@@ -205,7 +206,7 @@ class StringUtilsTest {
         val brokenDetectionAtStart = listOf("〰️", "〽️", "©️", "®️", "#️⃣", "*️⃣", "0️⃣", "1️⃣", "2️⃣", "3️⃣", "4️⃣", "5️⃣", "6️⃣", "7️⃣", "8️⃣", "9️⃣", "㊗️", "㊙️")
         allEmojis.forEach {
             if (it == "🀄" || it == "🃏") return@forEach // todo: should be fixed, ideally in the regex
-            assert(isEmoji(it))
+            assertTrue(isEmoji(it), "isEmoji=false for [$it] codePoints=${it.codePoints().toArray().joinToString(","){ "U+" + it.toString(16).uppercase() }}")
             assert(StringUtils.mightBeEmoji(it.codePointBefore(it.length)))
             if (it !in brokenDetectionAtStart)
                 assert(StringUtils.mightBeEmoji(it.codePointAt(0)))
diff --git a/docs/EXPERIMENT_LOG.md b/docs/EXPERIMENT_LOG.md
new file mode 100644
index 0000000000..cc624be3f2
--- /dev/null
+++ b/docs/EXPERIMENT_LOG.md
@@ -0,0 +1,108 @@
+# brrrBoard Experiment & Fix History
+
+This file is the project's durable engineering ledger.
+
+**Rule:** every attempted bug fix, UI experiment, CI repair, rollback, or workaround that is not obvious from the final code should be recorded here, including failed attempts. Never delete a failed experiment; append the outcome instead.
+
+## Entry format
+
+- **Date / build:** YYYY-MM-DD / version or commit
+- **Problem:** exact symptom
+- **Hypothesis:** suspected root cause
+- **Change attempted:** files/functions changed
+- **Result:** PASS / FAIL / PARTIAL / REVERTED
+- **Evidence:** CI run, APK SHA-256, device/model, logcat, screenshot, etc.
+- **Next step:** what should be tried next
+
+## 2026-10-07 — CI / APK recovery audit
+
+- **Problem:** main had no active APK workflow; multiple temporary workflows had been created, patched, and then deleted during repeated CI repairs.
+- **Hypothesis:** build/release infrastructure had become more fragile than the application code and could not reliably produce a current test APK.
+- **Change attempted:** restore one canonical debug-build workflow with full checkout, JDK 17, Gradle setup, persistent debug signing, unit tests, APK verification, artifact upload, and GitHub release publication.
+- **Result:** IN PROGRESS — this branch is the validation vehicle.
+- **Evidence:** main's latest commits removed `brrrboard-ci-test.yml`, `brrrboard-release.yml`, `brrrboard-signing-bootstrap.yml`, `build-debug-apk.yml`, and `release-apk.yml` after repeated workflow repairs.
+- **Next step:** keep the new workflow only if the build/test/signing verification passes.
+
+## 2026-10-07 — Debug versionCode collision hardening
+
+- **Problem:** debug `versionCode` used minute-resolution wall-clock time as its fallback.
+- **Hypothesis:** two builds produced within the same minute can receive the same `versionCode`, causing Android update/install failures even when the APK is signed correctly.
+- **Change attempted:** increase the fallback clock resolution from minutes to seconds while retaining the git-revision-count floor.
+- **Result:** IN PROGRESS — requires CI build verification and device update verification.
+- **Evidence:** `GitCommitCountValueSource` previously used `System.currentTimeMillis() / 60_000L`.
+- **Next step:** install two successive debug APKs over the same package and verify that the second installs as an update without uninstalling.
+
+## 2026-10-05 — Debug settings crash
+
+- **Problem:** opening Debug settings crashed with a Compose nested-scroll measurement exception.
+- **Root cause confirmed:** a `LazyColumn` was nested inside another vertically scrolling `LazyColumn`.
+- **Fix:** render Debug settings directly in the parent `ColumnScope`; make filtering injectable.
+- **Result:** FIXED.
+- **Evidence:** commit `9c022e9977894c0d4e35b0451f07769843f3977d`.
+
+## 2026-10-05 — Klipy GIF search returned zero results
+
+- **Problem:** GIF searches such as cat/dog/hello returned no results.
+- **Root cause confirmed:** GIF requests were filtered with `png`, although the GIF endpoint supports gif/webp/jpg/mp4/webm.
+- **Fix:** use `gif,webp` for GIF searches while preserving `webp,gif,png` for stickers.
+- **Result:** FIXED.
+- **Evidence:** commit `65af63a1bd30c566ae2da432dd5916d1f0715be5`.
+
+## 2026-10-05 — In-keyboard search lifecycle / panel regressions
+
+- **Problem:** emoji/Klipy search panels could be destroyed or flicker during keyboard element switches.
+- **Fix:** guard panel teardown, preserve search-mode state, add transition-state tracking, rebind search listeners/pointer trackers, and fix Klipy Compose lifecycle initialization.
+- **Result:** FIXED in source; runtime verification still matters on physical devices.
+- **Evidence:** commit `b08e9170dcc618b7a05d920b1b2cb2dfc49a5695`.
+
+## 2026-08-16 — Frosted Glass compatibility crashes
+
+- **Problem:** blur effects crashed on older Android versions and some non-bitmap drawable paths could fail.
+- **Fix:** gate native blur to Android 12+, harden gradient drawable cropping, validate decoded background bitmaps, and add theme logging/fallbacks.
+- **Result:** FIXED in source.
+- **Evidence:** commit `4f2daef1d378e4b7ad9f8cd851dbabf3c5ad3b3`.
+
+## 2026-06-14 to 2026-06-25 — InputConnection / resize / blur stabilization
+
+- The project went through several related input-lag, cursor-query, resize-overlay, and native-blur fixes.
+- **Important:** treat these as regression-sensitive areas; any change here should be accompanied by typing, cursor-movement, resize, and blur tests on a real device.
+- **Evidence:** commits `a7dde8aea5d83e5c8a739b44b9e5f251dc624e9f`, `c967f4f891c873fdffa368fa99fd5974379b5724`, `f7b11443feb7a5457c955c6c0c539c18c5185d6d`, `7998fad4ebd8b0499d638c89d0e5ea5888dd2a05`.
+
+## How to record a failed experiment
+
+Use the template above even when the change is abandoned. A failed experiment is useful because it prevents repeating the same hypothesis without new evidence.
+
+## 2026-10-07 — CI unit-test environment failure (JDK 17 vs Android SDK 36)
+
+- **Problem:** the canonical build reached `:app:testDebugUnitTest` but 10/17 tests failed before test bodies ran.
+- **Root cause confirmed:** Robolectric's SDK 36 support requires Java 21; the workflow was installing Java 17. The failures all surfaced as `UnsupportedOperationException` from `DefaultSdkProvider.java:170`.
+- **Change attempted:** first workflow revision intentionally used JDK 17 because the project compiles source/target at Java 17; CI exposed the separate Robolectric runtime requirement.
+- **Result:** FAIL — this was a CI/toolchain configuration bug, not evidence that those ten tests are functionally broken.
+- **Evidence:** GitHub Actions run `37573697017`; 17 tests completed, 10 failed; failed classes included ParserTest, SubtypeTest, XLinkTest, SparkleDustViewTest, ClipboardImageHistoryClipTest, InputLogicTest, StringUtilsTest, SuggestTest, KlipyHistoryDaoTest, and ToolbarUtilsTest. All reported `UnsupportedOperationException at DefaultSdkProvider.java:170`.
+- **Next step:** rerun the complete build with JDK 21; keep Java/Kotlin source compatibility at 17 unless the compiler itself requires a change.
+
+
+## 2026-10-07 — APK-only delivery validation
+
+- **Problem:** the normal workflow was blocked by the unit-test gate and GitHub Actions became congested by an in-progress run.
+- **Change:** added `.github/workflows/brrrboard-apk-only.yml` so APK packaging/signing/upload is independently verifiable and not blocked by tests.
+- **Result:** APK **BUILD + SIGNING + ARTIFACT UPLOAD PASS**; GitHub Release publication failed only because the Actions integration received HTTP 403 for the Releases endpoint.
+- **Evidence:** workflow run `37575456832`; APK `FrostKeys_2.5.8-debug.apk`; SHA-256 `1b594eff45b0f9b41c290e4c234cd3a77f46229565de70a07d53d6c66ae9873a`.
+- **Next step:** test this APK on the target phone; keep release publication separate until repository Actions permissions allow Releases.
+
+## 2026-10-07 — Subtype cache/test-state investigation
+
+- **Problem:** `SubtypeTest` failed with `IllegalArgumentException` from `.single()` when resource/enabled subtype collections contained more than one entry.
+- **Change:** clear `resourceSubtypesByLocale` before rebuilding resource subtype caches; isolate enabled/selected subtype preferences in the test.
+- **Result:** APK compiles with the changes; the full regression workflow has not yet completed after these changes, so this is **PROVISIONAL**, not marked fully fixed.
+
+## 2026-10-07 — Emoji detector diagnostic
+
+- **Problem:** `StringUtilsTest.isEmojiDetectsAllAvailableEmojis` still failed under `testRunTests`.
+- **Change:** replaced the silent JVM assertion with an assertion that prints the exact failing emoji and code points.
+- **Result:** diagnostic patch committed; final detector correction awaits the next successful test run.
+
+## 2026-10-07 — CI workflow permission finding
+
+- **Problem:** `gh release create` returned HTTP 403 `Resource not accessible by integration` even though the workflow has `contents: write`.
+- **Result:** GitHub Actions artifact upload works; Release API publication is currently blocked by the connected integration's permissions.
\ No newline at end of file
diff --git a/docs/KNOWN_ISSUES.md b/docs/KNOWN_ISSUES.md
new file mode 100644
index 0000000000..6e0f82e17f
--- /dev/null
+++ b/docs/KNOWN_ISSUES.md
@@ -0,0 +1,24 @@
+# brrrBoard Known Issues & Audit Notes
+
+This is the current engineering watchlist. Items are not called fixed until there is evidence from tests or a real device.
+
+| Area | Status | Finding |
+|---|---|---|
+| APK CI | **Partially recovered** | Canonical build workflow restored; independent audit APK workflow now builds, signs and uploads successfully. GitHub Release API publication is blocked by HTTP 403. |
+| Debug APK updates | **Needs device validation** | Fallback `versionCode` now uses seconds rather than minutes; APK signing identity is persistent across debug builds. Device update without uninstall remains to be tested. |
+| Runtime keyboard startup | **Needs device validation** | Static source inspection cannot prove IME startup/keyboard-popup behavior on a physical OEM build. |
+| Search panels | **High regression sensitivity** | Emoji/Klipy search lifecycle and keyboard switching were recently rewritten; test enter/search/type/switch/exit repeatedly. |
+| Frosted Glass | **High OEM sensitivity** | Native blur has Android/Samsung-specific fallback paths; test with blur on/off and Android 12+ plus older API behavior where supported. |
+| Clipboard history | **Needs device validation** | Undo/restore and suggestion-dismissal logic was recently changed; test delete → undo, delete → paste, restart, and pinned entries. |
+| Settings | **Recently fixed** | Debug settings nested-scroll crash was fixed; regression test the Debug screen and search filtering. |
+| Klipy | **Recently fixed** | GIF format filter was corrected; test GIF and sticker search independently. |
+
+## Evidence standard
+
+1. **Build evidence:** CI passes tests and produces a non-empty APK.
+2. **Install evidence:** APK installs successfully.
+3. **Update evidence:** second APK updates the previous install without uninstalling.
+4. **Runtime evidence:** affected feature is exercised on the target device.
+5. **Regression evidence:** existing related tests still pass.
+
+Do not mark an issue as fixed solely because the source compiles.
\ No newline at end of file