nixos-4screen/docs/05_migration_status_and_next_steps.md

Migration Status and Next Steps (Jan 28, 2026)

This document summarizes the current status of the NixOS migration project and outlines the remaining critical steps.

Current Status

Phase 1: Data Staging and Relocation - COMPLETE

• Initial Data Review: Identified and confirmed that primary user personal files (Documents, Pictures, Music, Videos, Downloads) were largely already present in /data/personal.
• Missing Project Data Identified: Discovered missing web projects (XAMPP htdocs) and IoT projects (frei0r) from the old Windows drive (/media/sam/8294CD2994CD2111).
• Data Staging Completed: Successfully copied the missing web projects to /data/work/htdocs and IoT projects to /data/work/frei0r. The Espressif toolchain was intentionally excluded.
• Critical Data Relocation: Both the entire /data directory (containing all staged user data, total ~86GB) and the nixos-migration project directory were successfully copied from the original Ubuntu OS drive to the external USB drive: /media/sam/Integral300/. This is crucial for safeguarding data before the main drive is formatted.

Phase 2: Deep System Reconnaissance - COMPLETE

• A comprehensive 04_nixos_recon.sh script was created and executed.
• Detailed logs (logs/04_nixos_recon.log) have been generated, containing:
  • Lists of all installed APT and Snap packages.
  • Information on active systemd services and timers (system-wide and user-specific).
  • Output from Docker commands (version, info, running containers, images, volumes) and a search for docker-compose.yml files.
  • Analysis of shell history for frequently used command-line tools.
  • Lists of manually installed binaries in /usr/local/bin, ~/bin, and ~/.local/bin.

Gitea Archival - COMPLETE

• The essential logs/ and results/ directories from this nixos-migration project have been successfully pushed to the nixos-4screen Gitea repository (ssh://git@gitea.lab.audasmedia.com.au:2222/sam/nixos-4screen.git). This ensures the reconnaissance data and any future NixOS configuration templates are safely version-controlled.

Next Steps / Remaining Considerations

1. Review All Reconnaissance Logs: A thorough manual review of all logs (04_nixos_recon.log and 07_deep_cli_scan.log) is essential to build your final NixOS configurations. The deep scan successfully identified numerous Cargo-installed CLI tools like atuin, starship, zellij, yazi, etc.

2. Build configuration.nix: Use the results/generated_configuration.nix as a starting template. Cross-reference with the logs to add any missing system-wide packages and services.

3. Build home.nix: A new draft, results/generated_home.nix, has been created. This file is a comprehensive template for using Home Manager to declaratively build your entire terminal environment, including Zsh, Oh My Zsh, Starship, and all the CLI tools discovered in the deep scan.

4. Backup of Local Application Data (See 06_application_data_notes.md): Ensure critical items like GPG/SSH keys are securely backed up.

5. Fireship Desktop App: The "fireship" application was not found via standard package managers or .desktop files. It is likely an AppImage. You will need to re-download this manually on your new NixOS system.

Once these review steps are complete, you will be ready to begin the NixOS installation.