From the source code it looks like brew uses a UUID generated locally (e.g. from a source like /proc/sys/kernel/random/uuid). I don't see how it could be correl

From the source code it looks like brew uses a UUID generated locally (e.g. from a source like /proc/sys/kernel/random/uuid). I don't see how it could be correlated with anything in the browser. In terms of the analytics URL they set the client-ID, which indicates a "particular instance of an application install": https://developers.google.com/analytics/devguides/collection/protocol/v1/parameters#cid https://developers.google.com/analytics/devguides/collection...