flake/README.org

Flake Readme

• My NixOS Configuraton File
  • Current Desktop Screenshots:
    • Gnome
  • Emacs
  • Highlights:
    • Multiple NixOS configurations: desktop, laptop, and hopefully a test server and eventually a full transition over from my Ubuntu server.
  • How to:
    • Maintenance
    • Sources
      • Nix Flakes: [https://nixos.wiki/wiki/Flakes]
      • home-manager: [https://github.com/nix-community/home-manager]
        • Home Manager as a NixOS Module: [https://nix-community.github.io/home-manager/index.html#sec-flakes-nixos-module]
  • Structure
  • Hosts

My NixOS Configuraton File

This is my NixOS setup to manage multiple computers with a home-manager config structure using nix flakes.

Current Desktop Screenshots:

Gnome

Emacs

Highlights:

Multiple NixOS configurations: desktop, laptop, and hopefully a test server and eventually a full transition over from my Ubuntu server.

How to:

1. NixOS Installation

   1. Install NixOS on a computer using the default Gnome installer from [https://nixos.org/download.html].
   2. Clone this repository [https://git.disroot.org/zonsopkomst] in the `/home/<username>/ directory.

   3. Update the subdirectories in `hosts` and `users`.

      1. Copy the `configuration.nix` and `hardware-configuration.nix` files from the `/etc/nixos` directory and move them to `hosts/PLACE(local OR remote)/NEW_PC_NAME`.
      2. Rename `configuration.nix` to `default.nix` and, update `flake.nix` located in the top directory, link the appropriate modules to be used.
      3. Segment out items from new `default.nix` to appropriate `.nix` files.
      4. Make sure the correct version of NixOS is listed in the appropriate files.

   4. `flake.nix` is where `.nix` files are imported with further instructions on declared packages and modules.

      1. Declare packages either globally under `/hosts/<location>/hostname/packages.nix` or `/users/<username>/home-manager.nix`.

   5. Rebuild NixOS (<hostname> must be include the first time rebuilding, after the first rebuild, .# can be used and the system will know which hostname is to be used)

      1. `nix flake –update && nixos-rebuild switch –flake .#<hostname>`
   6. Push the updated git files to the repository so that they can be pulled, and the system rebuilt during the next update.

Maintenance

1. See `/config/.bashrc` for `alias`: `flkup` using `sudo nixos-rebuild switch –flake .#<hostname>` commands and other useful items

Sources

Nix Flakes: [https://nixos.wiki/wiki/Flakes]

home-manager: [https://github.com/nix-community/home-manager]

Home Manager as a NixOS Module: [https://nix-community.github.io/home-manager/index.html#sec-flakes-nixos-module]

Structure

Directory	What is it for?
common	Shared configurations and modules
config	Config files that are managed by NixOS
desktop	Shared desktop configs
display	Login Display managers
hosts	The PCs deployed
reference	Package list, git assets, notes, etc.
users	Individual User configs
flake.nix & flake.lock	Declared configuration using the above directories & configs

Hosts

Hostname	Model	Type	RAM	Processor	Main Use
weda	Dell Inspiron 15	Laptop	16GB	AMD Ryzen 5 (Cezanne)	Business
frija	Acer Aspire 3	Laptop	4GB	AMD A9	Testing
tyr	Intel i5	Desktop	16GB	Intel i5	Media
tii	Dell Lattitude 5511	Laptop	16GB	Intel i5 Quad (i5-10400H)	Remote
tuisto	AMD Ryzen 5	Desktop	16GB	AMD Ryzen 5 (Renoir)	Remote
sintanne	Intel i5	Desktop	16GB	Intel i5-11320H	Remote
thuner	AMD Ryzen 5	Server	??GB	AMD 2200G	Test Server
fryslan (Ubuntu)	AMD Ryzen 5	Server	??GB	AMD 2200G	Main Server