diff --git a/.github/workflows/status_check.yml b/.github/workflows/status_check.yml
index 0852665..e7ffb64 100644
--- a/.github/workflows/status_check.yml
+++ b/.github/workflows/status_check.yml
@@ -171,7 +171,15 @@ jobs:
           # SwiftShader's JIT, which is a known crash source.
           emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
           disable-animations: true
-          script: ./gradlew :app:connectedDebugAndroidTest
+          # The default userdata partition is not big enough for this APK once the
+          # FFmpeg libraries are in it. API 37's system image leaves the least room and
+          # was the level that actually failed, with "Requested internal only, but not
+          # enough space" -- but the margin was thin everywhere, so give them all room.
+          disk-size: 8G
+          # Build only the ABI the emulator can execute. FFmpeg's native libraries
+          # dominate the APK, so shipping arm64 to an x86_64 emulator doubles the
+          # install for code that can never run: 114 MB against 80 MB.
+          script: ./gradlew :app:connectedDebugAndroidTest -PabiFilters=x86_64
 
       - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         if: always()
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 25a08d5..e2b917c 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -23,8 +23,22 @@ android {
 
         // 64-bit only. The 16 KB page-size rules apply to these ABIs; 32-bit is not
         // required by Play and would add ~2 more copies of the FFmpeg .so files.
+        //
+        // Overridable so a test run can build for just the ABI it will execute on.
+        // FFmpeg's native libraries dominate the APK, so shipping both ABIs to an
+        // x86_64 emulator doubles it for no benefit -- and on API 37, whose system
+        // image leaves less free userdata, the full APK does not fit at all:
+        // "Requested internal only, but not enough space".
+        //
+        //   ./gradlew :app:connectedDebugAndroidTest -PabiFilters=x86_64
+        //
+        // Release builds ignore this and always ship both.
         ndk {
-            abiFilters += listOf("arm64-v8a", "x86_64")
+            val requested = (findProperty("abiFilters") as String?)
+                ?.split(",")
+                ?.map { it.trim() }
+                ?.filter { it.isNotEmpty() }
+            abiFilters += requested ?: listOf("arm64-v8a", "x86_64")
         }
     }