A disk map for developers. DevCruft shows every gigabyte on your Mac as a live map, and it knows what DerivedData, node_modules and Docker.raw actually are.https://devcruft.com/en-ushttps://devcruft.com/blog/clean-xcode-derived-data/https://devcruft.com/blog/clean-xcode-derived-data/DerivedData is the largest single folder on most Apple developers' Macs. Here is exactly what is in it, why deleting it is safe, and how to clear only the projects you no longer build.Wed, 02 Sep 2026 00:00:00 GMTXcodemacOSStorageDeveloperCachehttps://devcruft.com/blog/mac-storage-full-developer-guide/https://devcruft.com/blog/mac-storage-full-developer-guide/A 512 GB MacBook running out of space is almost never your files. It's build caches. Here is every one of them, what it costs you, and the exact command to reclaim it.Tue, 01 Sep 2026 00:00:00 GMTmacOSXcodeDockernode_modulesStorageDeveloperhttps://devcruft.com/blog/node-modules-disk-space/https://devcruft.com/blog/node-modules-disk-space/Not the project you are working on — the sixty others. How to find every node_modules folder on your Mac, rank them by how long since you touched them, and delete the dead ones safely.Sun, 30 Aug 2026 00:00:00 GMTnode_modulesnpmJavaScriptStorageDeveloperhttps://devcruft.com/blog/docker-disk-space-mac/https://devcruft.com/blog/docker-disk-space-mac/Docker Desktop on macOS stores everything in one growing VM disk image that never shrinks on its own. Why `docker system prune` appears to do nothing, and how to actually get the space back.Fri, 28 Aug 2026 00:00:00 GMTDockermacOSStorageDeveloperCachehttps://devcruft.com/blog/ios-simulator-cleanup/https://devcruft.com/blog/ios-simulator-cleanup/Every simulator device, every old runtime, and a dyld cache nobody mentions. The safe `simctl` commands to reclaim all of it without breaking Xcode.Wed, 26 Aug 2026 00:00:00 GMTXcodeiOSSimulatorStorageDevelopermacOShttps://devcruft.com/blog/mac-system-data-explained/https://devcruft.com/blog/mac-system-data-explained/Apple's storage bar shows a huge grey bucket labelled System Data and gives you no way to open it. Here is what is really inside, and how to see it for yourself.Mon, 24 Aug 2026 00:00:00 GMTmacOSStorageAPFSSystem DataDeveloperhttps://devcruft.com/blog/daisydisk-alternatives-developers/https://devcruft.com/blog/daisydisk-alternatives-developers/DaisyDisk draws a beautiful map and has no idea what DerivedData is. A straight comparison of the Mac disk analysers, including the free ones, from people building a competitor.Sat, 22 Aug 2026 00:00:00 GMTmacOSStorageDeveloperComparisonDaisyDiskhttps://devcruft.com/blog/homebrew-cache-cleanup/https://devcruft.com/blog/homebrew-cache-cleanup/Every bottle Homebrew has ever downloaded is still on your Mac, including versions you upgraded away from years ago. One command fixes it.Thu, 20 Aug 2026 00:00:00 GMTHomebrewmacOSStorageCacheDeveloperhttps://devcruft.com/blog/android-studio-disk-space/https://devcruft.com/blog/android-studio-disk-space/Gradle caches, AVD disk images and a system image per API level. Android Studio has the worst space-to-usefulness ratio of any tool on a Mac, and here is how to reclaim it.Tue, 18 Aug 2026 00:00:00 GMTAndroidGradlemacOSStorageDeveloperCachehttps://devcruft.com/blog/rust-go-python-cache-cleanup/https://devcruft.com/blog/rust-go-python-cache-cleanup/Rust target directories, the Go module cache, pip wheels and abandoned virtualenvs. The language toolchain caches nobody thinks about, and the commands to clear each one.Sun, 16 Aug 2026 00:00:00 GMTRustGoPythonCacheStorageDevelopermacOS