NixOS Configuration

Personal NixOS configuration for ThinkPad X1 Yoga 2nd Gen using flakes and modular architecture.

Warning

Personal configuration - not meant for direct use. Review and customize for your hardware before applying.

System Specs

• Model: Lenovo ThinkPad X1 Yoga 2nd Gen
• CPU: Intel Core i5-7300U
• RAM: 8GB LPDDR3
• Storage: 512GB NVMe SSD
• NixOS Version: Unstable (26.05)

Quick Overview

Desktop

• Primary: Plasma 6 (Wayland)
• Alternatives: COSMIC (disabled by default), mangoWC (planned)

Key Features

• Kernel: CachyOS with sched_ext (scx_rustland)
• Audio: PipeWire with echo cancellation
• Storage: Btrfs with zstd compression + 75% zRAM
• Input Methods: Fcitx5 (Bengali, Japanese, Chinese, Korean)
• Security: Firewall enabled, fingerprint auth, TPM 2.0

Development

Pre-configured: Rust, Python, C/C++, Java, Go, Node.js, .NET Tools: direnv, Podman (Docker-compatible), git, LSPs

Virtualization

QEMU/KVM, Podman containers, Waydroid (Android)

Structure

├── .github/workflows/    # CI/CD checks
├── home/                 # Home Manager configs
├── hosts/                # System configuration
├── modules/              # Modular system components
├── services/             # User services
└── users/                # User definitions

Installation

# Backup hardware-configuration.nix first!
git clone https://github.com/thshafi170/nixos-config /etc/nixos
cd /etc/nixos

# Customize for your system:
# - hosts/default.nix (hostname, timezone)
# - users/default.nix (username, groups)
# - modules/default.nix (enable/disable DEs)

sudo nixos-rebuild switch --flake .#X1-Yoga-2nd

Quick Customization

Switch Desktop: Edit modules/default.nix

imports = [
  ./cosmic.nix    # Default
  # ./plasma6.nix   # Uncomment for Plasma 6
];

Adjust Cleanup: In hosts/default.nix

nix.gc.options = "--delete-older-than 14d";  # Change as needed

Maintenance

# Update
sudo nix flake update && sudo nixos-rebuild switch --flake .

# Clean old generations (automatic weekly, or manual)
sudo nix-collect-garbage --delete-older-than 7d

# Test changes without switching
sudo nixos-rebuild test --flake .

Fish Shell Aliases

• nix-switch - Rebuild and switch
• nix-upgrade - Update and rebuild
• nix-clean - Deep clean with garbage collection
• git-pull-all - Pull all git repos recursively

Binary Caches

• cache.nixos.org (official)
• nix-community.cachix.org
• an-anime-team.cachix.org

License

MIT - See LICENSE

Acknowledgments

NixOS Community The Anime Team

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Last Updated: 19th October 2025