refactor: attempting to merge nix-starter-configs and chfour's nixos config together

config/common.nix

@@ -1,98 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  # Allow unfree packages
-  nixpkgs.config.allowUnfree = true;
-
-  # auto optimize store and experimental features
-  nix.settings = {
-    experimental-features = [ "nix-command" "flakes" ];
-    auto-optimise-store = true;
-  };
-
-  # Enable networking
-  networking.networkmanager.enable = true;
-
-  # we're using/prioritizing dnscrypt!
-  networking.nameservers = [ "127.0.0.1" "::1" ];
-  # resolved and others conflicts with setting dns here
-  networking.resolvconf.enable = pkgs.lib.mkForce false;
-  networking.dhcpcd.extraConfig = "nohook resolv.conf";
-  services.resolved.enable = false;
-  # also ensuring that networkmanager doesn't modify dns settings
-  networking.networkmanager.dns = "none";
-
-  # dnscrypt settings
-  services.dnscrypt-proxy2 = {
-    enable = true;
-    settings = {
-      ipv6_servers = true;
-      require_dnssec = true;
-
-      sources.public-resolvers = {
-        # of course, sourcing from the main public lists
-        urls = [
-          "https://raw.githubusercontent.com/DNSCrypt/dnscrypt-resolvers/master/v3/public-resolvers.md"
-          "https://download.dnscrypt.info/resolvers-list/v3/public-resolvers.md"
-        ];
-        cache_file = "/var/lib/dnscrypt-proxy2/public-resolvers.md";
-        minisign_key = "RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3";
-      };
-
-      # You can choose a specific set of servers from https://github.com/DNSCrypt/dnscrypt-resolvers/blob/master/v3/public-resolvers.md
-      # prioritize quad9, then adguard, and cloudflare as last resort
-      server_names = [ "quad9-dnscrypt-ip4-filter-pri" "quad9-doh-ip4-port443-filter-pri" "quad9-doh-ip6-port443-filter-pri" "adguard-dns-doh" "adguard-dns-ipv6" "cloudflare" "cloudflare-ipv6" ];
-    };
-  };
-
-  systemd.services.dnscrypt-proxy2.serviceConfig = {
-    StateDirectory = "dnscrypt-proxy";
-  };
-
-  # enable plymouth because it looks cool :)))
-  boot.plymouth = {
-    enable = true;
-    theme = "bgrt";
-  };
-
-  # Enable CUPS to print documents.
-  services.printing = {
-    enable = true;
-    drivers = with pkgs; [ canon-cups-ufr2 ];
-  };
-  services.avahi.enable = true;
-  services.avahi.nssmdns4 = true;
-
-  # Enable sound with pipewire.
-  sound.enable = true;
-  hardware.pulseaudio.enable = false;
-  security.rtkit.enable = true;
-  services.pipewire = {
-    enable = true;
-    alsa.enable = true;
-    alsa.support32Bit = true;
-    pulse.enable = true;
-    # If you want to use JACK applications, uncomment this
-    #jack.enable = true;
-
-    # wireplumber exists so, lets *not* use the example session
-    wireplumber.enable = true;
-  };
-
-  # gnupg is basically required for everything i use
-  programs.gnupg.agent = {
-    enable = true;
-    enableSSHSupport = true;
-  };
-
-  # virtualization stuff
-  virtualisation.libvirtd = {
-    enable = true;
-    #qemu.runAsRoot = false;
-    qemu.swtpm.enable = true;
-  };
-  virtualisation.spiceUSBRedirection.enable = true;
-
-  # waydroid
-  virtualisation.waydroid.enable = true;
-}

config/packages.nix

@@ -1,33 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  # List packages installed in system profile. To search, run:
-  # $ nix search wget
-  #
-  # enable flakes
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
-  environment.systemPackages = with pkgs; [
-    # git is required for flakes, and either way i use it
-    git
-    wget
-    curl
-    jq
-    imagemagick
-    ffmpeg
-
-    virt-manager
-  ];
-  # set the default editor to neovim
-  environment.variables.EDITOR = "nvim";
-
-  # we like flatpaks
-  services.flatpak.enable = true;
-
-  # steam
-  programs.steam = {
-    enable = true;
-  };
-
-  # android debugging tools
-  programs.adb.enable = true;
-}

config/plasma.nix

@@ -1,42 +0,0 @@
-{ pkgs, ... }:
-
-{
-  # so, funny thing i learned - "xserver" is basically the blanket term for all gui stuff in nixos.
-  # this really confuses me, because i'm trying to keep xorg out of this install and only wayland in.
-  # i may miss some spots though.
-  # see: https://www.reddit.com/r/NixOS/comments/17ia1g8/i_dont_understand_nixoss_wayland_setup/
-
-  services.xserver.enable = true;
-
-  # use sddm and only use its wayland session
-  services.displayManager.sddm.enable = true;
-  services.displayManager.sddm.wayland.enable = true;
-  # default to plasma wayland session
-  services.displayManager.defaultSession = "plasma";
-  # gyattde rizzma 6
-  services.desktopManager.plasma6 = {
-    enable = true;
-  };
-
-  programs.xwayland.enable = true;
-  # we use flatpak
-  programs.firefox.enable = false;
-
-  # Configure keymap in X11
-  services.xserver.xkb = {
-    layout = "us";
-  };
-
-  # don't install some of the default packages since i don't need them
-  environment.plasma6.excludePackages = with pkgs.kdePackages; [
-    plasma-browser-integration
-    #konsole
-    #oxygen
-  ];
-
-  # ensure we have dconf enabled
-  programs.dconf.enable = true;
-
-  # this enables the ozone stuff on wayland for chromium and electron and shit
-  environment.variables.NIXOS_OZONE_WL = "1";
-}

flake.nix

@@ -3,9 +3,9 @@
 # | '_ \| \ \/ / _ \/ __|
 # | | | | |>  < (_) \__ \
 # |_| |_|_/_/\_\___/|___/
-# this configuration file is copied/inspired from https://github.com/chfour/nixos
+# this configuration file is basically a mashup of https://github.com/chfour/nixos and https://github.com/Misterio77/nix-starter-configs
-# with lots of examples and knowledge gained with the standard config from https://github.com/Misterio77/nix-starter-configs
+# with lots of examples and knowledge gained from both of them
-# and also this wonderful book https://nixos-and-flakes.thiscute.world
+# and also this wonderful book which helped get me started on nix https://nixos-and-flakes.thiscute.world
 # shoutouts to yall 🙏
 {
   description = "Sneexy's custom nixos configs";
@@ -37,6 +37,7 @@
 
     # flake for 06cb:009a fingerprint scanners. to make the fingerprint scanner on my
     # thinkpad t480 function.
+    # TODO: see if you can only add this for t480
     nixos-06cb-009a-fingerprint-sensor = {
       url = "github:ahbnr/nixos-06cb-009a-fingerprint-sensor";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -66,15 +67,33 @@
     # pass to it, with each system as an argument
     forAllSystems = nixpkgs.lib.genAttrs systems;
   in {
+      # Your custom packages
+    # Accessible through 'nix build', 'nix shell', etc
+    packages = forAllSystems (system: import ./pkgs nixpkgs.legacyPackages.${system});
+    # Formatter for your nix files, available through 'nix fmt'
+    # Other options beside 'alejandra' include 'nixpkgs-fmt'
+    formatter = forAllSystems (system: nixpkgs.legacyPackages.${system}.alejandra);
+
+    # Your custom packages and modifications, exported as overlays
+    overlays = import ./overlays {inherit inputs;};
+    # Reusable nixos modules you might want to export
+    # These are usually stuff you would upstream into nixpkgs
+    nixosModules = import ./modules/nixos;
+    # Reusable home-manager modules you might want to export
+    # These are usually stuff you would upstream into home-manager
+    homeManagerModules = import ./modules/home-manager;
+
     # NixOS configuration entrypoint
     # Available through 'nixos-rebuild --flake .#your-hostname'
     nixosConfigurations = {
       # main laptop i use daily
       "thunkpad" = nixpkgs.lib.nixosSystem rec {
         specialArgs = {inherit inputs outputs;};
-        modules = with self.nixosModules; [
+        modules = [
-          # nixos configuration file (and others) for thunkpad
+          # specific configs for thunkpad/t480
           ./machines/thunkpad
+          # shared/common config
+          ./nixos/configuration.nix
           # fingerprint modules
           nixos-06cb-009a-fingerprint-sensor.nixosModules.open-fprintd
           nixos-06cb-009a-fingerprint-sensor.nixosModules.python-validity
@@ -84,10 +103,12 @@
       };
       # secondary 2 in 1 device, not really used
       "thonkpad" = nixpkgs.lib.nixosSystem {
-        system = "x86_64-linux";
+        specialArgs = {inherit inputs outputs;};
-        modules = with self.nixosModules; [
+        modules = [
           # nixos configuration file (and others) for thonkpad
           ./machines/thonkpad
+          # shared/common config
+          ./nixos/configuration.nix
           # nyx repo
           chaotic.nixosModules.default
         ];

home-manager/home.nix

@@ -4,7 +4,6 @@
   inputs,
   outputs,
   lib,
-  osConfig,
   config,
   pkgs,
   ...
@@ -22,6 +21,23 @@
   ];
 
   nixpkgs = {
+    # You can add overlays here
+    overlays = [
+      # Add overlays your own flake exports (from overlays and pkgs dir):
+      outputs.overlays.additions
+      outputs.overlays.modifications
+      outputs.overlays.unstable-packages
+
+      # You can also add overlays exported from other flakes:
+      # neovim-nightly-overlay.overlays.default
+
+      # Or define it inline, for example:
+      # (final: prev: {
+      #   hi = final.hello.overrideAttrs (oldAttrs: {
+      #     patches = [ ./change-hello-to-hi.patch ];
+      #   });
+      # })
+    ];
     # Configure your nixpkgs instance
     config = {
       # Disable if you don't want unfree packages
@@ -31,14 +47,12 @@
     };
   };
 
-  # meeee :333
-  # if this ain't you, you should probably change this
   home = {
     username = "ruben";
     homeDirectory = "/home/ruben";
   };
 
-  # this is a got damn NEO VIMME HOUSE !!
+    # this is a got damn NEO VIMME HOUSE !!
   home.sessionVariables = {
     EDITOR = "nvim";
   };
@@ -75,6 +89,7 @@
 
   xdg.userDirs.enable = true;
 
+  # music!!
   services.mpd = {
     enable = true;
     extraConfig = ''
@@ -86,31 +101,33 @@
   };
 
   # Add stuff for your user as you see fit:
-  # programs.neovim.enable = true;
+  programs.neovim.enable = true;
   home.packages = with pkgs; [
     btop
-    sheldon
-    starship
-    zoxide
-    fzf
     bat
     duf
+    fastfetch
     fd
     delta
     lsd
     ripgrep
     sd
+    starship
+    zoxide
+    usbutils
+    jq
+    ffmpeg_6-full
+    imagemagick
     yt-dlp
+    mpv
   ];
 
-  # Enable home-manager and git
-  programs.home-manager.enable = true;
-  programs.git.enable = true;
-
   # Nicely reload system units when changing configs
   systemd.user.startServices = "sd-switch";
 
+  # Enable home-manager
+  programs.home-manager.enable = true;
+
   # https://nixos.wiki/wiki/FAQ/When_do_I_update_stateVersion
-  # basically: don't touch this.
   home.stateVersion = "23.05";
 }

machines/thonkpad/default.nix

@@ -8,27 +8,11 @@
   imports = [
     # Include the results of the hardware scan.
     ./hardware-configuration.nix
-    # KDE Plasma configuration
-    ../../config/plasma.nix
-    # Shared/common configurations
-    ../../config/common.nix
-    # Packages
-    ../../config/packages.nix
   ];
 
-  # who up thunking they
+  # who up thonking they
   networking.hostName = "thonkpad";
 
-  # Bootloader.
-  boot.loader.systemd-boot.enable = true;
-  boot.loader.efi.canTouchEfiVariables = true;
-
-  # use linux-cachy from the nyx repo.
-  # is this actually "required"? no, not really. but i can have it, so why not?
-  # see nyx: https://www.nyx.chaotic.cx/
-  # see cachyos: https://github.com/CachyOS/linux-cachyos
-  boot.kernelPackages = pkgs.linuxPackages_cachyos;
-
   # Set your time zone.
   time.timeZone = "America/Chicago";
 

machines/thunkpad/default.nix

@@ -8,27 +8,11 @@
   imports = [
     # Include the results of the hardware scan.
     ./hardware-configuration.nix
-    # KDE Plasma configuration
-    ../../config/plasma.nix
-    # Shared/common configurations
-    ../../config/common.nix
-    # Packages
-    ../../config/packages.nix
   ];
 
   # who up thunking they
   networking.hostName = "thunkpad";
 
-  # Bootloader.
-  boot.loader.systemd-boot.enable = true;
-  boot.loader.efi.canTouchEfiVariables = true;
-
-  # use linux-cachy from the nyx repo.
-  # is this actually "required"? no, not really. but i can have it, so why not?
-  # see nyx: https://www.nyx.chaotic.cx/
-  # see cachyos: https://github.com/CachyOS/linux-cachyos
-  boot.kernelPackages = pkgs.linuxPackages_cachyos;
-
   # Set your time zone.
   time.timeZone = "America/Chicago";
 

modules/home-manager/default.nix

@@ -0,0 +1,6 @@
+# Add your reusable home-manager modules to this directory, on their own file (https://nixos.wiki/wiki/Module).
+# These should be stuff you would like to share with others, not your personal configurations.
+{
+  # List your module files here
+  # my-module = import ./my-module.nix;
+}

modules/nixos/default.nix

@@ -0,0 +1,6 @@
+# Add your reusable NixOS modules to this directory, on their own file (https://nixos.wiki/wiki/Module).
+# These should be stuff you would like to share with others, not your personal configurations.
+{
+  # List your module files here
+  # my-module = import ./my-module.nix;
+}

nixos/configuration.nix

@@ -0,0 +1,228 @@
+# This is your system's configuration file.
+# Use this to configure your system environment (it replaces /etc/nixos/configuration.nix)
+{
+  inputs,
+  outputs,
+  lib,
+  config,
+  pkgs,
+  ...
+}: {
+  # You can import other NixOS modules here
+  imports = [
+    # If you want to use modules your own flake exports (from modules/nixos):
+    # outputs.nixosModules.example
+
+    # Or modules from other flakes (such as nixos-hardware):
+    # inputs.hardware.nixosModules.common-cpu-amd
+    # inputs.hardware.nixosModules.common-ssd
+
+    # You can also split up your configuration and import pieces of it here:
+    # ./users.nix
+
+    # specify users in a seperate config file (since its only me on this system, anyways)
+    ./users.nix
+  ];
+
+  nixpkgs = {
+    # You can add overlays here
+    overlays = [
+      # Add overlays your own flake exports (from overlays and pkgs dir):
+      outputs.overlays.additions
+      outputs.overlays.modifications
+      outputs.overlays.unstable-packages
+
+      # You can also add overlays exported from other flakes:
+      # neovim-nightly-overlay.overlays.default
+
+      # Or define it inline, for example:
+      # (final: prev: {
+      #   hi = final.hello.overrideAttrs (oldAttrs: {
+      #     patches = [ ./change-hello-to-hi.patch ];
+      #   });
+      # })
+    ];
+    # Configure your nixpkgs instance
+    config = {
+      # Disable if you don't want unfree packages
+      allowUnfree = true;
+    };
+  };
+
+  # This will add each flake input as a registry
+  # To make nix3 commands consistent with your flake
+  nix.registry = (lib.mapAttrs (_: flake: {inherit flake;})) ((lib.filterAttrs (_: lib.isType "flake")) inputs);
+
+  # This will additionally add your inputs to the system's legacy channels
+  # Making legacy nix commands consistent as well, awesome!
+  nix.nixPath = ["/etc/nix/path"];
+  environment.etc =
+    lib.mapAttrs'
+    (name: value: {
+      name = "nix/path/${name}";
+      value.source = value.flake;
+    })
+    config.nix.registry;
+
+  nix.settings = {
+    # Enable flakes and new 'nix' command
+    experimental-features = "nix-command flakes";
+    # Deduplicate and optimize nix store
+    auto-optimise-store = true;
+  };
+
+  # use linux-cachy from the nyx repo.
+  # is this actually "required"? no, not really. but i can have it, so why not?
+  # see nyx: https://www.nyx.chaotic.cx/
+  # see cachyos: https://github.com/CachyOS/linux-cachyos
+  boot.kernelPackages = pkgs.linuxPackages_cachyos;
+
+  # Bootloader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  # Enable networking
+  networking.networkmanager.enable = true;
+
+  # we're using/prioritizing dnscrypt!
+  networking.nameservers = [ "127.0.0.1" "::1" ];
+  # resolved and others conflicts with setting dns here
+  networking.resolvconf.enable = pkgs.lib.mkForce false;
+  networking.dhcpcd.extraConfig = "nohook resolv.conf";
+  services.resolved.enable = false;
+  # also ensuring that networkmanager doesn't modify dns settings
+  networking.networkmanager.dns = "none";
+
+  # dnscrypt settings
+  services.dnscrypt-proxy2 = {
+    enable = true;
+    settings = {
+      ipv6_servers = true;
+      require_dnssec = true;
+
+      sources.public-resolvers = {
+        # of course, sourcing from the main public lists
+        urls = [
+          "https://raw.githubusercontent.com/DNSCrypt/dnscrypt-resolvers/master/v3/public-resolvers.md"
+          "https://download.dnscrypt.info/resolvers-list/v3/public-resolvers.md"
+        ];
+        cache_file = "/var/lib/dnscrypt-proxy2/public-resolvers.md";
+        minisign_key = "RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3";
+      };
+
+      # You can choose a specific set of servers from https://github.com/DNSCrypt/dnscrypt-resolvers/blob/master/v3/public-resolvers.md
+      # prioritize quad9, then adguard, and cloudflare as last resort
+      server_names = [ "quad9-dnscrypt-ip4-filter-pri" "quad9-doh-ip4-port443-filter-pri" "quad9-doh-ip6-port443-filter-pri" "adguard-dns-doh" "adguard-dns-ipv6" "cloudflare" "cloudflare-ipv6" ];
+    };
+  };
+
+  systemd.services.dnscrypt-proxy2.serviceConfig = {
+    StateDirectory = "dnscrypt-proxy";
+  };
+
+  # enable plymouth because it looks cool :)))
+  boot.plymouth = {
+    enable = true;
+    theme = "bgrt";
+  };
+
+  # Enable CUPS to print documents.
+  services.printing = {
+    enable = true;
+    drivers = with pkgs; [ canon-cups-ufr2 ];
+  };
+  services.avahi.enable = true;
+  services.avahi.nssmdns4 = true;
+
+  # so, funny thing i learned - "xserver" is basically the blanket term for all gui stuff in nixos.
+  # this really confuses me, because i'm trying to keep xorg out of this install and only wayland in.
+  # i may miss some spots though.
+  # see: https://www.reddit.com/r/NixOS/comments/17ia1g8/i_dont_understand_nixoss_wayland_setup/
+  # EDIT: they changed it !!!!
+
+  services.xserver.enable = true;
+
+  # use sddm and only use its wayland session
+  services.displayManager.sddm.enable = true;
+  services.displayManager.sddm.wayland.enable = true;
+  # default to plasma wayland session
+  services.displayManager.defaultSession = "plasma";
+  # gyattde rizzma 6
+  services.desktopManager.plasma6 = {
+    enable = true;
+  };
+
+  programs.xwayland.enable = true;
+  # we use flatpak
+  programs.firefox.enable = false;
+
+  # Configure keymap in X11
+  services.xserver.xkb = {
+    layout = "us";
+  };
+
+  # don't install some of the default packages since i don't need them
+  environment.plasma6.excludePackages = with pkgs.kdePackages; [
+    plasma-browser-integration
+    #konsole
+    #oxygen
+  ];
+
+  # this enables the ozone stuff on wayland for chromium and electron and shit
+  environment.variables.NIXOS_OZONE_WL = "1";
+
+  # Enable sound with pipewire.
+  sound.enable = true;
+  hardware.pulseaudio.enable = false;
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+    # If you want to use JACK applications, uncomment this
+    #jack.enable = true;
+
+    # wireplumber exists so, lets *not* use the example session
+    wireplumber.enable = true;
+  };
+
+  environment.systemPackages = with pkgs; [
+    git
+    wget fzf
+    curl curlHTTP3
+    virt-manager
+    pinentry-curses
+    kitty wezterm
+    ventoy
+  ];
+
+  # we like flatpaks
+  services.flatpak.enable = true;
+
+  # steam
+  programs.steam.enable = true;
+
+  # android debugging tools
+  programs.adb.enable = true;
+
+  # gnupg is basically required for everything i use
+  programs.gnupg.agent = {
+    enable = true;
+    enableSSHSupport = true;
+  };
+
+  # virtualization stuff
+  virtualisation.libvirtd = {
+    enable = true;
+    #qemu.runAsRoot = false;
+    qemu.swtpm.enable = true;
+  };
+  virtualisation.spiceUSBRedirection.enable = true;
+
+  # waydroid
+  virtualisation.waydroid.enable = true;
+
+  # https://nixos.wiki/wiki/FAQ/When_do_I_update_stateVersion
+  system.stateVersion = "23.05";
+}

nixos/users.nix

@@ -4,6 +4,7 @@
 {
   home-manager.users.ruben = ./home.nix;
 
+  # myself :D
   users.users."ruben" = {
     isNormalUser = true;
     description = "Ruben";
@@ -13,6 +14,6 @@
     openssh.authorizedKeys.keys = [ ''ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIO+V3b6oKMTLEBq8AKjdNF5ZwJGXuWTrS2u9QaEypBYP sneexy@disroot.org'' ''ssh-rsa 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 ruben@thunkpad'' ];
   };
 
-  programs.zsh.enable = true; # "TODO: get rid of this if possible" thanks chfour
+  programs.zsh.enable = true;
   environment.shells = with pkgs; [ zsh ];
 }

overlays/default.nix

@@ -0,0 +1,23 @@
+# This file defines overlays
+{inputs, ...}: {
+  # This one brings our custom packages from the 'pkgs' directory
+  additions = final: _prev: import ../pkgs {pkgs = final;};
+
+  # This one contains whatever you want to overlay
+  # You can change versions, add patches, set compilation flags, anything really.
+  # https://nixos.wiki/wiki/Overlays
+  modifications = final: prev: {
+    # example = prev.example.overrideAttrs (oldAttrs: rec {
+    # ...
+    # });
+  };
+
+  # When applied, the unstable nixpkgs set (declared in the flake inputs) will
+  # be accessible through 'pkgs.unstable'
+  unstable-packages = final: _prev: {
+    unstable = import inputs.nixpkgs-unstable {
+      system = final.system;
+      config.allowUnfree = true;
+    };
+  };
+}

pkgs/default.nix

@@ -0,0 +1,5 @@
+# Custom packages, that can be defined similarly to ones from nixpkgs
+# You can build them using 'nix build .#example'
+pkgs: {
+  # example = pkgs.callPackage ./example { };
+}