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Deduplicating git worktrees on EXT4 with jdupes

Git worktrees can consume disk space quickly, as one developer found when ten worktrees filled a 28 GB volume within a day. The article explains how to use jdupes to deduplicate identical files across worktrees on an EXT4 filesystem and limit that growth.

ma.ttias.be24 Jul 2026 · 1 min read · summary

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A git worktree workflow eats a lot more disk than you’d expect. On the remote box I run my coding agents on , ten worktrees took a 28 GB volume down to 687 MB free in about a day. Here’s one way to limit that.

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