My system configurations

Structure

• hardware - Hardware specific configurations per machine
• helpers - Utility functions put in the global namespace
• modules
• profiles - Configurations for nixos/nix-darwin system
  • base - Shared configurations for all systems
    • darwin.nix
    • nixos.nix
    • shared.nix
  • gaming - Launchers, emulators and drivers to enable gaming on linux
  • homelab
  • laptop - Nix darwin configuration for laptop
  • personal - NixOS configuration for workstation
  • work - minimal NixOS development environment
• scripts - Shell scripts to automate some parts of bootstapping NixOS/nix-darin systems
• secrets - Per system runtime secrets encrypted with sops

Bootstrapping a new system

SSH Keys

Before you try building a nix configuration make sure you've generated a ssh key and derived the sops age key

KEY=~/.ssh/id_ed25519
# Optionally generate a new ssh key if you don't have one
ssh-keygen -t ed25519 -a 32 -C "Name you@email.com" -f $KEY
# Outputs sops age key to ~/.config/sops/age/keys.txt
./scripts/derive-key.sh $KEY

Get Nix

This step can be skipped for NixOS systems...

2. Install Nix

curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | sh -s -- install

After installation, open a new terminal session to make the nix executable available in your $PATH. You'll need this in the steps ahead.

Rebuilding system

Important

If you're on a new system make sure to generate a hardware configuration

NAME=myname nixos-generate-config --show-hardware-config > ./hardware/$NAME.nix

Then import it for your system configuration in ./flake.nix

  {
    workstation = nixosSystem {
      ...
      modules = base ++ [
        ...
        ./hardware/myname.nix
      ];
    };
  }

To build a configuration and switch to it for the first time run the script in ./scripts/rebuild-switch.sh passing the desired profile name to it as the first argument like this:

./scripts/rebuild-switch.sh homelab

The avaiable system configurations are:

• NixOS
  • personal
  • homelab
  • vps
  • work
• Nix Darwin
  • laptop

Note

Consider setting up your home directory on a fresh system with ./scripts/setup-home.sh This will clone my dotfiles to the home directory and create ~/notes ~/projects etc..

Dotfiles

All my favourite programs are wrapped and exported from my dotfiles repo These are also included as a flake input in this repository and avaiable under dotfiles.pkgs in the global namespace

# Open up new shell with all my configured software
nix develop github:juliamertz/dotfiles