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Parch Backup: Development Roadmap (v0.1 → v1.0)

This roadmap outlines the phased development of Parch Backup, bringing the GTK4 + Libadwaita (GNOME HIG) GUI directly into the v0.1.0 initial release, and expanding into a feature-rich, high-powered backup & snapshot solution for Parch Linux up to v1.0.0.

🚀 Versioned Phases

timeline
    title Parch Backup Evolution
    v0.1.0 Initial Release : Security & Stream Crypto Fixes : Core Engine & Event Channels : GTK4 + Libadwaita GUI : Full CLI & GUI Functional MVP
    v0.2.0 Smart Presets & Zstd : Fast Zstd Compression : 1-Click Presets (Gamer, Dev, Identity) : Parch Branding & Styling
    v0.3.0 Cloud & Remote Destinations : SSH/SFTP & External Drives : Storage Breakdown Chart : Backup History Timeline
    v0.4.0 Snapshot Explorer & Differential : Incremental / Differential Backups : In-Archive File Manager & Drag-Restore
    v0.5.0 Automation & System Doctor : Systemd Timer GUI Configurator : Desktop Notifications & Sounds : Archive Integrity Verification
    v1.0.0 Parch Ecosystem Stable : Parch Welcome / ISO Integration : PKGBUILD & AUR Package : AppStream & i18n
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Phase 1: v0.1.0 — Initial Release: Core Engine Fixes & GTK4/Libadwaita GUI (MVP)

Goal: Fix critical crypto/OOM bugs and launch both the CLI and a fully functional, modern GTK4/Libadwaita GUI following GNOME HIG.

  • Backend Engine & Security Fixes:
    • AES-256-GCM Security Fix: Prepend PBAR magic header + random 16-byte salt + random 12-byte nonce per archive to prevent GCM static nonce reuse.
    • Streaming Encryption/Decryption: Stream crypto operations using chunked reader/writer to support 100GB+ archives without RAM OOM.
    • Flatpak Fix: Update query to flatpak list --app --columns=app to produce clean Application IDs.
    • Package Manager Fallback: Auto-detect paru → yay → pacman.
    • Restore Logic Fix: Read PBAR magic header to identify encrypted files; remove destructive post-restore re-encryption.
    • Async Progress Event Channels: Implement ProgressEvent channels (Sender<ProgressEvent>) to stream live progress updates to CLI & GTK UI.
    • CLI Default Path: Default archive path to ~/Backups.
  • GTK4 + Libadwaita (GNOME HIG) GUI:
    • Main Window (AdwApplicationWindow): HeaderBar, ViewSwitcher (Backup & Restore views).
    • Backup Preferences Page: AdwSwitchRow for Apps, Flatpaks, Home, Keys; Destination Folder chooser; Password Entry row.
    • Restore Page: Archive File Selector, Password Entry (shown if PBAR header is encrypted), Restore Action button.
    • Live Progress Overlay: Real-time progress bar (GtkProgressBar), status labels, and cancellation support.

Phase 2: v0.2.0 — Smart Presets, Zstd & Parch Styling

Goal: Supercharge backup speeds with zstd and introduce 1-click tailored backup profiles.

  • Multi-Threaded Zstd (tar.zst): Fast compression with zstd crate (5x faster than gzip).
  • 1-Click Smart Presets:
    • 🎮 Gamer Preset: Save games, Steam configs, Lutris/Heroic data, MangoHud profiles.
    • 💻 Developer Preset: VS Code/VSCodium extensions & settings, Neovim config, SSH/GPG keys, shell dotfiles (.zshrc, .bashrc).
    • 🌐 Full System Identity: Installed apps, Flatpaks, systemd enabled services, fonts, and dotfiles.
  • Parch Linux Theme & Aesthetic: Custom GTK accent matching Parch Linux colors, dark mode optimization, subtle micro-animations.

Phase 3: v0.3.0 — Cloud & Remote Destinations + Backup History

Goal: Expand backup storage options beyond local disk to SSH servers, external mounts, and cloud.

  • Remote & SSH Destinations: Back up directly over SSH/SFTP or custom mount points.
  • Visual Storage Breakdown: Chart showing space taken by Packages, Flatpaks, Home, and Keys.
  • Backup History Timeline: List past backups, showing archive sizes, creation dates, and component tags.

Phase 4: v0.4.0 — Snapshot Explorer & Differential Backups

Goal: Save storage space with differential backups and allow browsing inside archives.

  • Differential / Incremental Backups: Only back up modified files since the last baseline backup.
  • In-Archive File Manager: Inspect files inside .pbar / .tar.zst archives directly within the GUI without extracting everything.
  • Selective File Restore: Drag & drop or 1-click restore individual files or directories from inside an archive.

Phase 5: v0.5.0 — System Automation & Health Doctor

Goal: Automatic background execution and archive integrity verification.

  • Systemd Timer GUI Configurator: Toggle and schedule daily/weekly automated backups inside the GUI preferences.
  • Desktop Notifications: Send Freedesktop notifications on backup completion or failure with quick summary details.
  • System Doctor: 1-Click archive integrity check (checksum verification & test decryption).

Phase 6: v1.0.0 — Production Release & Parch Ecosystem Integration

Goal: Official stable 1.0 release ready for default inclusion in Parch Linux ISOs.

  • Parch Welcome Integration: Deep integration with Parch Linux Welcome application ("Welcome to Parch Linux! Restore your backup").
  • AUR & Parch Package (PKGBUILD): Official PKGBUILD script for parch-backup.
  • AppStream & Desktop Integration: .desktop launcher, SVG app icon, AppStream metadata XML, man pages (parch-backup.1), and i18n translation support.