Clean DerivedData safely
Separate rebuildable DerivedData from Archives, DeviceSupport, simulators, and release records.
Quartz Mac guides
Understand the system before changing it.
Practical, source-backed guides for Mac users and developers. Each guide explains what a resource is, what an action changes, and what recovery looks like.
Developer storage
Guides for storage created by Xcode, package managers, Docker, editors, local AI models, and app installations.
Find unused node_modules
Identify inactive dependency folders and verify that the project can recreate them.
Reduce Docker disk usage
Review images, stopped containers, build cache, and volumes without treating every object alike.
Manage model storage
Understand Ollama and Hugging Face locations, shared blobs, and redownload impact.
Remove app leftovers
Use bundle identity, running state, permissions, and recovery instead of broad name matching.
Clean simulators and DeviceSupport
Distinguish simulator devices, runtimes, state, and physical-device support before cleanup.
App launching
Understand what changed in macOS Tahoe and compare visual, search-first, open-source, and paid-once launchers.
Get Launchpad back
Restore a visual app grid with folders, pages, keyboard search, and imported layout.
Launchpad alternatives
Compare the built-in options and dedicated Mac app launchers by workflow rather than feature count.
Where is Launchpad?
Find Launchpad on older macOS releases and understand what replaced it in newer versions.
Visual Mac app launchers
Learn when a grid, folder layout, keyboard search, or command palette fits the way you remember apps.
Have a Mac question worth documenting?
Send Quartz a specific workflow or technical problem. Product support and guide corrections are welcome.