# Nebula — Native macOS Smart Space Manager

> Nebula is a native macOS storage management app that moves cold, unused files from low-capacity MacBooks to external SSDs, NAS, or cloud drives with cryptographic SHA-256 verification and one-click safe restore.

## Core Summary
- Product Name: Nebula
- Platform: macOS 13.0+ (Ventura, Sonoma, Sequoia, macOS 26) on Apple Silicon & Intel
- Target Audience: MacBook users with 128 GB, 256 GB, and 512 GB SSDs, developers, photographers, and video creators
- Philosophy: "Your MacBook is full. Don't delete anything." Moves files safely rather than blindly deleting them.
- Business Model: One-time payment ($9.99 launch founding price, regular $14.99; ₹799 INR in India). Zero subscriptions.
- Current Status: Pre-release private beta waitlist.

## Key Capabilities (Built)
- Multi-tier offloading using Apple true last-used metadata (kMDItemLastUsedDate)
- APFS free-space floor guard (maintains 20 GB or 15% headroom for swap and system cache)
- Streaming SHA-256 checksum verification before freeing any local space
- 7-day macOS Trash grace period before permanent purge
- Developer deep-clean for Xcode DerivedData, simulator runtimes, npm, and cargo
- Byte-identical duplicate finder with streaming CryptoKit SHA-256 verification
- App uninstaller with associated container, preferences, and cache detection
- Visual treemap disk space explorer
- System & hardware memory monitor with graceful application termination
- 100% App Sandbox compliant with Security-Scoped Bookmarks (no Full Disk Access required)
- Zero background daemons, zero external server transmission (100% offline-first)

## Planned Features (Marked as Planned)
- Perceptual image hashing (pHash) for burst photo duplicate detection
- Automated cloud sync daemon monitoring with background wake-on-charge
- Selective symlink stubbing with QuickLook thumbnail integration in Finder
- AES-256 client-side encrypted cold archive format for NAS destinations

## Destinations Supported
- External SSD / USB-C / Thunderbolt (Samsung T7, SanDisk, Crucial)
- Network Attached Storage (NAS) via SMB/NFS (Synology, QNAP, TrueNAS, Unraid)
- Google Drive for desktop
- Apple iCloud Drive
- Dropbox
- Microsoft OneDrive

## Essential Guides & Documentation (10 Technical Guides)
- Home & Waitlist: https://getnebula.app/
- Free up space on a 256GB MacBook: https://getnebula.app/guides/free-up-space-on-a-256gb-macbook/
- Mac System Data too large: https://getnebula.app/guides/mac-system-data-too-large/
- Move files to Google Drive from Mac safely: https://getnebula.app/guides/move-files-to-google-drive-from-mac/
- Move Photos library to an external drive safely: https://getnebula.app/guides/move-photos-library-to-external-drive-safely/
- Xcode taking too much space on Mac: https://getnebula.app/guides/xcode-taking-too-much-space-mac/
- Delete iOS backups on Mac safely: https://getnebula.app/guides/delete-ios-backups-on-mac/
- Time Machine local snapshots explained: https://getnebula.app/guides/time-machine-local-snapshots-explained/
- Manage Docker disk space and virtual disk bloat: https://getnebula.app/guides/docker-mac-disk-space-purge/
- The 128GB MacBook survival guide: https://getnebula.app/guides/mac-128gb-ssd-survival-guide/
- Uninstall Mac apps and remove hidden leftovers: https://getnebula.app/guides/uninstall-mac-apps-remove-leftovers/
- Privacy Policy: https://getnebula.app/privacy/
- Facts at a glance (machine-readable): https://getnebula.app/facts.json

## Contact & Developer
- Developer: Independent Mac Developer
- Email: support@getnebula.app