Field notes / practical evidence
Clear answers built around repeatable tests.
Each field note connects a real player problem to a working lab, a controlled comparison and an explicit measurement boundary.
Start here
Use a current guide while new field notes are prepared.
These paths cover the same method: observe first, change one variable and repeat the result.
Controller guide
Gamepad not detected in the browser
Follow a controlled connection and browser check before blaming the controller.
Drift guideMeasure stick drift before changing settings
Separate a repeatable center offset from game-specific deadzone behavior.
Research noteWhat browser input measurements can prove
Understand the signal path, useful comparisons and the limits of an online test.