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Written while testing the activity lifecycle work on a Galaxy S8 and a Quest 2. Mostly about ways the tooling answers a question you didn't ask. The expensive one: versionCode is the git commit count, so installing a feature branch over a longer branch fails with INSTALL_FAILED_VERSION_DOWNGRADE, which -r does not override. The device keeps running the previous build, and if the install output went through a pipe the failure is never seen. An A/B where both installs failed that way agrees with itself perfectly and means nothing. Also: dumpsys meminfo counts activities that are garbage but not yet collected, so the obvious reading looks like a leak whether or not there is one - trim and re-read until it settles; how to force an activity recreate over adb when the device won't rotate on command; why screencap is black on a Quest and what to read instead; and how to tell whether a device exercises the content-URI path at all before concluding a run covered it. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01152igCdjTNhT29qvphPyPC