Nix Configuration

Project Structure

• home-manager:
  • home.nix
  • etc...
• flake.lock
• flake.nix
• nixos:
  • configuration.nix
  • hardware-configuration.nix (this can/should be generated and copied over for specific server)
  • networking.nix

Install on Digital Ocean Droplot or other VM

https://github.com/elitak/nixos-infect

Check distro/version for compatibility

1. Setup ssh access with root

2. > export doNetConf=y

3. > curl https://raw.githubusercontent.com/elitak/nixos-infect/master/nixos-infect | NIX_CHANNEL=nixos-22.11 bash -x note: ignore warnings about script not supported being run

4. Clone nix-config git repo in root home

5. Copy hardware-configuration.nix and networking.nix to target nix-config for consistency note: you may need to generate hardware-configuration.nix again with the nixos-generate-config command. delete the old file if necessary.

6. Build or rebuild after making changes $ sudo nixos-rebuild switch --flake .#{hostname} note: unsure why network-addresses-eth0.service may fail. just run it again

7. Copy nix-config to new user home directory $ cp -r nix-config /home/daibar/

8. Set password for newly created users from root or sudo $ passwd {username}

9. Log into target user (i.e. daibar) $ su - daibar

10. Follow Home Manager instructions

Home Manager

1. Navigate to ~/nix-config
2. Update flake.nix and home-manager/home.nix as directed in comments
3. Run the following commands while in nixos-config folder: $ home-manager --flake . switch or $ home-manager switch --flake .#{username}@{hostname} note: use -b backup flag as necessary
4. Set zsh as default shell: $ chsh -s $(which zsh)

Tips:

Always commit your changes before using switch. If you have uncommitted changes they won't be found during install!