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Manjaro is experimenting with **opt-out telemetry | Hacker News (More like op-out spying)
(news.ycombinator.com)
This is a most excellent place for technology news and articles.
Yup, a live image works in a pinch. IMO, just use BTRFS on root and install something like snapper to handle snapshots and you shouldn't need the live USB (unless you bork your bootloader somehow).