The first working APK carried libjnidispatch.so for armeabi, mips and mips64 as well as our four — JNA's .aar still ships those, and AGP packages whatever it finds. Android dropped mips in NDK r17 and armeabi in r17 too; nothing that can install this app can load them, so they are pure payload. abiFilters pins the set to the four the Rust is actually cross-compiled for, so the APK's ABI list matches the build's intent rather than the union of every dependency's history. Found by unpacking the artifact rather than trusting the green: the run said "Upload debug APK ✓", which is true and says nothing about what is inside it. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>