--- title: A crash took my cmux workspaces. So I built cmux-resurrect. description: After a cmux crash wiped an hour of carefully arranged workspaces, the author built cmux-resurrect (crex) — a save/restore tool for cmux sessions inspired by... canonical: https://daily.dev/posts/a-crash-took-my-cmux-workspaces-so-i-built-cmux-resurrect--sqveaqpsa twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: A crash took my cmux workspaces. So I built cmux-resurrect. | daily.dev og:description: After a cmux crash wiped an hour of carefully arranged workspaces, the author built cmux-resurrect (crex) — a save/restore tool for cmux sessions inspired by... og:url: https://daily.dev/posts/a-crash-took-my-cmux-workspaces-so-i-built-cmux-resurrect--sqveaqpsa og:image: https://api.daily.dev/og/posts/SQVEaQpSA.png og:image:alt: A crash took my cmux workspaces. So I built cmux-resurrect. og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # A crash took my cmux workspaces. So I built cmux-resurrect. **[Juan Andrés Moreno Rubio](https://daily.dev/sources/gfmimpgjcvvxoigj3n5zw)** · [@txeo](https://daily.dev/txeo) · 2 min read · 1 upvotes · 0 comments ## Summary After a cmux crash wiped an hour of carefully arranged workspaces, the author built cmux-resurrect (crex) — a save/restore tool for cmux sessions inspired by tmux-resurrect. It captures splits, working directories, pinned tabs, and startup commands, then restores them exactly. A standout feature is Workspace Blueprints, which saves layouts as human-readable Markdown files that can be edited, versioned in git, or opened in Obsidian. Additional features include dry-run mode, reusable templates, and auto-save via launchd. Built in Go, MIT licensed, distributed as a single binary installable via Homebrew. ## Content Last month a [cmux](https://github.com/manaflow-ai/cmux) crash wiped an hour of carefully arranged workspaces — splits, commands, everything. Gone. I looked for a recovery tool. **There wasn't one. **(At the time I started. Now there are few [tries/workarounds](https://github.com/manaflow-ai/cmux/issues/1984) on the go) If you've used tmux, you might know [tmux-resurrect](https://github.com/tmux-plugins/tmux-resurrect) — it lets you save and restore your entire tmux session across reboots (12K+ stars, essential for any serious tmux workflow). cmux had nothing like it. Inspired by this project, I built one: [**cmux-resurrect**](https://github.com/drolosoft/cmux-resurrect). (The command is `crex` for short.) `crex save` — captures your entire layout: splits, working directories, pinned tabs, startup commands. `crex restore` — brings it all back exactly as it was. But here's what I'm most excited about: **Workspace Blueprints**:Your layouts become human-readable Markdown files — edit them by hand, version them in git, or open them in Obsidian. Your terminal layout,_ human-readable _and_ shareable._ It also has **dry-run mode** (preview before restoring), **reusable templates**, and **auto-save** via launchd. Built in Go. MIT licensed. **Single binary**. Homebrew installable. Huge thanks to the [cmux](https://github.com/manaflow-ai/cmux) team for building such a clean public API — crex wouldn't exist without it — and to [tmux-resurrect](https://github.com/tmux-plugins/tmux-resurrect) for proving this idea works. If you've ever lost a cmux session and spent 20 minutes rebuilding it — this is for you. 🔗 [github.com/drolosoft/cmux-resurrect](https://github.com/drolosoft/cmux-resurrect) ## Similar posts on daily.dev - [A deep dive into cmux](https://daily.dev/posts/a-deep-dive-into-cmux-cy5qgzdpv) · Flavio Copes · 1 upvotes · 0 comments - [cmux — The terminal built for multitasking, organization, and programmability](https://daily.dev/posts/cmux-the-terminal-built-for-multitasking-organization-and-programmability-xafzhkyws) · Reid Burke · 7 upvotes · 1 comments - [Show HN: Remux – an open-source tmux workspace designed for iPhone](https://daily.dev/posts/show-hn-remux-an-open-source-tmux-workspace-designed-for-iphone-8pvm455t3) · Hacker News · 0 upvotes · 0 comments --- Tags: [#authentication](https://daily.dev/tags/authentication), [#golang](https://daily.dev/tags/golang) [View this post on daily.dev](https://daily.dev/posts/a-crash-took-my-cmux-workspaces-so-i-built-cmux-resurrect--sqveaqpsa) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"DiscussionForumPosting","mainEntityOfPage":"https://daily.dev/posts/a-crash-took-my-cmux-workspaces-so-i-built-cmux-resurrect--sqveaqpsa","headline":"A crash took my cmux workspaces. 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