diff --git a/.github/workflows/build-apk.yml b/.github/workflows/build-apk.yml
index 193c613..53fc2ae 100644
--- a/.github/workflows/build-apk.yml
+++ b/.github/workflows/build-apk.yml
@@ -29,11 +29,11 @@ jobs:
       - name: Decode release keystore
         run: echo "$RELEASE_KEYSTORE_BASE64" | base64 -d > "$RUNNER_TEMP/release.keystore"
         env:
-          RELEASE_KEYSTORE_BASE64: ${{ secrets.RELEASE_KEYSTORE_BASE64 }}
+          RELEASE_KEYSTORE_BASE64: ${{ secrets.ANDROID_KEYSTORE_BASE64 }}
 
       # Not sensitive (size/hash only, never the secret values themselves) — printed so a signing
       # failure ("Given final block not properly padded", "Invalid keystore format", etc.) can be
-      # told apart from a corrupted/truncated RELEASE_KEYSTORE_BASE64 secret without guessing.
+      # told apart from a corrupted/truncated ANDROID_KEYSTORE_BASE64 secret without guessing.
       - name: Verify decoded keystore integrity
         run: |
           echo "Decoded keystore size (bytes):"
@@ -45,18 +45,18 @@ jobs:
         run: ./gradlew assembleRelease --no-daemon --stacktrace
         env:
           RELEASE_KEYSTORE_PATH: ${{ runner.temp }}/release.keystore
-          RELEASE_KEYSTORE_PASSWORD: ${{ secrets.RELEASE_KEYSTORE_PASSWORD }}
-          RELEASE_KEY_ALIAS: ${{ secrets.RELEASE_KEY_ALIAS }}
-          RELEASE_KEY_PASSWORD: ${{ secrets.RELEASE_KEY_PASSWORD }}
+          RELEASE_KEYSTORE_PASSWORD: ${{ secrets.ANDROID_KEYSTORE_PASSWORD }}
+          RELEASE_KEY_ALIAS: ${{ secrets.ANDROID_KEY_ALIAS }}
+          RELEASE_KEY_PASSWORD: ${{ secrets.ANDROID_KEY_PASSWORD }}
 
       # Useful even without any Google API integration in v1 — see docs/release-signing.md.
       - name: Print release keystore SHA-1
         run: ./gradlew signingReport --no-daemon
         env:
           RELEASE_KEYSTORE_PATH: ${{ runner.temp }}/release.keystore
-          RELEASE_KEYSTORE_PASSWORD: ${{ secrets.RELEASE_KEYSTORE_PASSWORD }}
-          RELEASE_KEY_ALIAS: ${{ secrets.RELEASE_KEY_ALIAS }}
-          RELEASE_KEY_PASSWORD: ${{ secrets.RELEASE_KEY_PASSWORD }}
+          RELEASE_KEYSTORE_PASSWORD: ${{ secrets.ANDROID_KEYSTORE_PASSWORD }}
+          RELEASE_KEY_ALIAS: ${{ secrets.ANDROID_KEY_ALIAS }}
+          RELEASE_KEY_PASSWORD: ${{ secrets.ANDROID_KEY_PASSWORD }}
 
       - name: Upload APK
         uses: actions/upload-artifact@v7
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1a96dbd..6432a81 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -131,7 +131,7 @@ jobs:
       - name: Decode release keystore
         run: echo "$RELEASE_KEYSTORE_BASE64" | base64 -d > "$RUNNER_TEMP/release.keystore"
         env:
-          RELEASE_KEYSTORE_BASE64: ${{ secrets.RELEASE_KEYSTORE_BASE64 }}
+          RELEASE_KEYSTORE_BASE64: ${{ secrets.ANDROID_KEYSTORE_BASE64 }}
 
       - name: Verify decoded keystore integrity
         run: |
@@ -144,9 +144,9 @@ jobs:
         run: ./gradlew assembleRelease --no-daemon --stacktrace
         env:
           RELEASE_KEYSTORE_PATH: ${{ runner.temp }}/release.keystore
-          RELEASE_KEYSTORE_PASSWORD: ${{ secrets.RELEASE_KEYSTORE_PASSWORD }}
-          RELEASE_KEY_ALIAS: ${{ secrets.RELEASE_KEY_ALIAS }}
-          RELEASE_KEY_PASSWORD: ${{ secrets.RELEASE_KEY_PASSWORD }}
+          RELEASE_KEYSTORE_PASSWORD: ${{ secrets.ANDROID_KEYSTORE_PASSWORD }}
+          RELEASE_KEY_ALIAS: ${{ secrets.ANDROID_KEY_ALIAS }}
+          RELEASE_KEY_PASSWORD: ${{ secrets.ANDROID_KEY_PASSWORD }}
 
       # gh release create attaches whatever file path it's given as-is, so the APK is
       # uploaded as a plain .apk release asset — never zipped.
diff --git a/docs/release-signing.md b/docs/release-signing.md
index 5e3bbf6..de3f1e5 100644
--- a/docs/release-signing.md
+++ b/docs/release-signing.md
@@ -55,29 +55,34 @@ credentials from repository secrets, never from a file in the repo:
 base64 -w0 coverdex-release.keystore
 ```
 
-Copy that output into a repository secret named `RELEASE_KEYSTORE_BASE64`.
+Copy that output into a repository secret named `ANDROID_KEYSTORE_BASE64`.
 Add these secrets under the repo's **Settings → Secrets and variables →
 Actions**:
 
 | Secret | Value |
 |---|---|
-| `RELEASE_KEYSTORE_BASE64` | the base64 output above |
-| `RELEASE_KEYSTORE_PASSWORD` | the store password from step 1 |
-| `RELEASE_KEY_ALIAS` | `coverdex` (or whatever alias was used) |
-| `RELEASE_KEY_PASSWORD` | the key password from step 1 |
+| `ANDROID_KEYSTORE_BASE64` | the base64 output above |
+| `ANDROID_KEYSTORE_PASSWORD` | the store password from step 1 |
+| `ANDROID_KEY_ALIAS` | `coverdex` (or whatever alias was used) |
+| `ANDROID_KEY_PASSWORD` | the key password from step 1 |
 | `RELEASE_PUSH_TOKEN` | a fine-grained PAT scoped to this repo, Contents: Read and write — used only by `release.yml`'s final version-bump commit |
 
-`app/build.gradle.kts`'s `signingConfigs { create("release") { ... } }`
-block (written in Phase 0) reads `RELEASE_KEYSTORE_PATH`/
-`RELEASE_KEYSTORE_PASSWORD`/`RELEASE_KEY_ALIAS`/`RELEASE_KEY_PASSWORD` as
-environment variables — the workflows decode the base64 secret into a
-temporary file at `$RUNNER_TEMP/release.keystore` and pass its path as
-`RELEASE_KEYSTORE_PATH`. A local `./gradlew assembleRelease` with none of
-these set still succeeds — the release build type is simply left unsigned
-in that case, Android's own default.
+Note the naming split: the four signing secrets above are prefixed
+`ANDROID_` (matching how they were actually created in this repo's
+settings), while `app/build.gradle.kts`'s `signingConfigs { create("release")
+{ ... } }` block (written in Phase 0) still reads plain `RELEASE_KEYSTORE_PATH`/
+`RELEASE_KEYSTORE_PASSWORD`/`RELEASE_KEY_ALIAS`/`RELEASE_KEY_PASSWORD`
+environment variables — an internal contract between the workflows and
+Gradle, unrelated to the secret names and left as-is. The workflows are what
+bridge the two: they read the `ANDROID_*` secrets and re-expose them to
+Gradle as those `RELEASE_*` environment variables, decoding the base64
+secret into a temporary file at `$RUNNER_TEMP/release.keystore` and passing
+its path as `RELEASE_KEYSTORE_PATH`. A local `./gradlew assembleRelease`
+with none of these set still succeeds — the release build type is simply
+left unsigned in that case, Android's own default.
 
 > The sibling project's (Hall of Memories) first three release attempts all
-> failed on `RELEASE_KEYSTORE_BASE64` not being valid base64. Both
+> failed on `ANDROID_KEYSTORE_BASE64` not being valid base64. Both
 > `build-apk.yml` and `release.yml` print the decoded keystore's byte size
 > and SHA-256 right after decoding it, precisely so a signing failure later
 > in the same run ("Given final block not properly padded", "Invalid