AR Guitar Built With Only a Laptop and Scissors Shared on Hacker News

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A project called AR Guitar, which lets users play a guitar through augmented reality, was posted to Hacker News. The article linked to the project's website at arguitar.com. The post received 5 points and one comment from readers. The source material does not include details on how the system works or who created it. The item reflects a community discussion rather than a formal announcement.

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North Korea Suspected Behind Record $6.3bn Crypto Hack, Binance Freezes $3bn

North Korea is believed to be responsible for what is described as the largest cryptocurrency heist in history, valued at about $6.3 billion. Binance reportedly froze roughly $3 billion of the stolen assets and announced it would fully compensate affected users. The attack has drawn attention to the security risks facing digital asset platforms. The article also draws a parallel between the incident and the importance of independently verifying assumptions, using a drug-discovery anecdote involving a mismatched protein structure.

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ProgrammingHacker News ·

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ProgrammingDEV Community ·

git stash Is Shared Across Worktrees, Causing Parallel Agents to Pop Each Other's Work

Two coding agents working on the same repository in separate git worktrees each ran a stash-test-pop check and ended up restoring each other's stashed changes. The incident, reported in objectstack issue #5742 on August 6, 2026, occurred without any error, since git stash pop printed a normal success message. Git's documentation says only pseudo refs like HEAD and the index are per-worktree, while refs/stash is shared across all worktrees in a repository. As a result, a bare git stash pop takes the newest entry in the common stash list regardless of which worktree created it. The article demonstrates this with a reproducible example and suggests checking where git resolves each ref path to understand the behavior.

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ProgrammingDEV Community ·

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