Where your disk went, and how to get it back.

• Clean up the git worktrees your coding agents left behind

  Find the dormant git worktrees Claude Code, Cursor and parallel agents create, check which are safe to delete, and remove them without losing uncommitted or unpushed work.

  .claude/worktrees/* ~/.cursor/worktrees/* git worktree remove

• Find and delete old node_modules, target and .venv folders safely

  Measure the node_modules, Rust target, .venv, .next and dist folders in projects you no longer touch, confirm git ignores them, and delete them so the next install or build recreates them.

  node_modules target/ .venv .next dist

• Free up disk space from Xcode: DerivedData, simulators and device support

  Where Xcode keeps DerivedData, iOS DeviceSupport, simulators, simulator runtimes and archives on your Mac, how to measure each one, and which are safe to delete.

  DerivedData iOS DeviceSupport xcrun simctl

• Find and remove local AI models: Ollama, Hugging Face and LM Studio

  Where Ollama, the Hugging Face cache, LM Studio, PyTorch and Whisper store model weights, how to see what each model takes and when you last used it, and how to remove the ones you don't need.

  ~/.ollama/models ~/.cache/huggingface ~/.lmstudio

• Docker disk usage on a Mac: find it and reclaim it safely

  Why Docker Desktop's disk image keeps growing on macOS, how to see what images, build cache and volumes take with docker system df, and which prune commands are safe to run.

  Docker.raw docker system df builder prune

• Or let lysosome check all of it

  One read-only scan covers every guide here, labels each item by how safe it is to remove, and cleans only what is clearly rebuildable. Free, open-source CLI; the Mac app is in free beta.

  brew install lysosome-dev/tap/lysosome Download for Mac

Commands are for macOS unless noted; most work the same on Linux. Paths and sizes in examples are made up.