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Where your disk space actually goes.

Nov 1, 2026 · 3 min read

Port 3000 already in use? Find and stop the ghost dev servers

EADDRINUSE? A dev server from a closed terminal or coding agent is still listening. Find what's on a port on macOS, Linux and Windows and stop it safely.

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Nov 1, 2026 · 2 min read

How to delete all node_modules folders (macOS, Linux and Windows)

Copy-paste commands to find, measure and delete every node_modules folder under a directory, plus the safety checks that keep you from deleting the wrong thing.

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Nov 1, 2026 · 2 min read

Deleting node_modules on Windows takes forever. Here's why, and how to fix it

Why Explorer crawls deleting node_modules on Windows (tiny files, Defender, Recycle Bin, long paths) and faster fixes: rd, rimraf, robocopy and Dev Drive.

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Nov 1, 2026 · 2 min read

flutter clean, build/ and .dart_tool: what's safe to delete in a Flutter project

Which Flutter and Dart folders are generated, what flutter clean removes, and the other big Flutter caches: pub cache, Gradle, CocoaPods and Xcode.

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Nov 1, 2026 · 2 min read

Free up disk space on a Mac: the developer's checklist

Where developer disk space goes on macOS (Xcode DerivedData, simulators, Docker, Homebrew, package caches, build folders) and how to safely reclaim each.

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Nov 1, 2026 · 3 min read

npkill vs kondo vs Gigaflush: which project cleaner should you use?

An honest comparison of npkill, kondo and Gigaflush for deleting node_modules and build folders: interface, ecosystems, safety, and when to use each.

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Nov 1, 2026 · 2 min read

Python, Gradle and Maven caches: what you can safely delete

Which Python, Gradle and Maven folders are disposable: .pytest_cache, .mypy_cache, .ruff_cache, __pycache__, venvs, .gradle and Maven's target.

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Nov 1, 2026 · 2 min read

Why is my Rust target folder so big? (And how to clean it)

What lives in Cargo's target directory, why it grows to gigabytes, and how to shrink it safely: cargo clean, cargo-sweep and a shared CARGO_TARGET_DIR.

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Nov 1, 2026 · 3 min read

Vibe coding is eating your disk. Here's where the gigabytes go.

AI coding tools make new projects free, but each ships its own node_modules, target or build folder. How vibe coders run out of disk, and how to get it back.

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Nov 1, 2026 · 3 min read

Why is node_modules so big? A practical look inside

Transitive deps, platform binaries, duplicate versions and per-project copies: what fills node_modules, how to inspect it, and how npm, pnpm and Yarn differ.

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