feat: Initial NixOS systems config for laptop

users/default.nix

@@ -0,0 +1,43 @@
+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running ‘nixos-help’).
+
+{ config, pkgs, ... }:
+
+{
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users = {
+    root.hashedPassword = "!";
+    engr-ugaif = {
+      isNormalUser = true;
+      description = "UGA Innovation Factory";
+      extraGroups = [ "networkmanager" "wheel" ];
+      packages = with pkgs; [
+        kdePackages.kate
+      ];
+      hashedPassword = "$6$El6e2NhPrhVFjbFU$imlGZqUiizWw5fMP/ib0CeboOcFhYjIVb8oR1V1dP2NjDeri3jMoUm4ZABOB2uAF8UEDjAGHhFuZxhtbHg647/";
+    };
+
+    hdh20267 = {
+      isNormalUser = true;
+      description = "Hunter Halloran";
+      extraGroups = [ "networkmanager" "wheel" ];
+      packages = with pkgs; [
+        kdePackages.kate
+      ];
+      shell = pkgs.zsh;
+    };
+  };
+
+  # Home Manager configs per user
+  home-manager = {
+    useGlobalPkgs = true;
+    useUserPackages = true;
+
+    users = {
+      "engr-ugaif" = import ./engr-ugaif.nix;
+      "hdh20267" = import ./hdh20267.nix;
+      "root" = import ./root.nix;
+    };
+  };
+}

users/engr-ugaif.nix

@@ -0,0 +1,78 @@
+{ config, pkgs, lib, ... }:
+let
+  # Fetch upstream OMP theme once
+  jyumppTheme = pkgs.fetchurl {
+    url = "https://raw.githubusercontent.com/Jyumpp/jyumpp-zsh-theme/refs/heads/master/.jyumpp.omp.json";
+    # After first build Nix will show the wanted hash; add it here for reproducibility:
+    hash = "sha256-jsN3hkyT0dJNTYEmDHQPp++oscQLgYGNj7PZAcIW2TA=";
+  };
+in
+{
+  home.username = "engr-ugaif";
+  home.homeDirectory = "/home/engr-ugaif";
+  home.stateVersion = "25.11";
+
+  home.packages = [];
+
+  programs.zsh = {
+    enable = true;
+
+    # Plugins
+    historySubstringSearch = {
+      enable = true;
+      searchDownKey = "^[[B";
+      searchUpKey = "^[[A";
+    };
+
+    zplug = {
+      enable = true;
+      plugins = [
+        {
+          name = "jeffreytse/zsh-vi-mode";
+        }
+        {
+          name = "BronzeDeer/zsh-completion-sync";
+        }
+      ];
+    };
+
+    history = {
+      append = true;
+    };
+
+    autosuggestion.enable = true;
+
+    syntaxHighlighting.enable = true;
+  };
+
+  programs.zoxide = {
+    enable = true;
+    enableZshIntegration = true;
+  };
+
+  programs.lsd = {
+    enable = true;
+    enableZshIntegration = true;
+  };
+
+  programs.oh-my-posh = {
+    enable = true;
+    enableZshIntegration = true;
+    enableBashIntegration = true;
+    settings = builtins.fromJSON (builtins.unsafeDiscardStringContext (builtins.readFile(jyumppTheme)));
+  };
+
+  # https://github.com/nvim-treesitter/nvim-treesitter#i-get-query-error-invalid-node-type-at-position
+  xdg.configFile."nvim/parser".source =
+    let
+      parsers = pkgs.symlinkJoin {
+        name = "treesitter-parsers";
+        paths = (pkgs.vimPlugins.nvim-treesitter.withPlugins (plugins: with plugins; [
+          c
+          lua
+        ])).dependencies;
+      };
+    in
+    "${parsers}/parser";
+
+}

users/hdh20267.nix

@@ -0,0 +1,78 @@
+{ config, pkgs, lib, ... }:
+let
+  # Fetch upstream OMP theme once
+  jyumppTheme = pkgs.fetchurl {
+    url = "https://raw.githubusercontent.com/Jyumpp/jyumpp-zsh-theme/refs/heads/master/.jyumpp.omp.json";
+    # After first build Nix will show the wanted hash; add it here for reproducibility:
+    hash = "sha256-jsN3hkyT0dJNTYEmDHQPp++oscQLgYGNj7PZAcIW2TA=";
+  };
+in
+{
+  home.username = "hdh20267";
+  home.homeDirectory = "/home/hdh20267";
+  home.stateVersion = "25.11";
+
+  home.packages = [];
+
+  programs.zsh = {
+    enable = true;
+
+    # Plugins
+    historySubstringSearch = {
+      enable = true;
+      searchDownKey = "^[[B";
+      searchUpKey = "^[[A";
+    };
+
+    zplug = {
+      enable = true;
+      plugins = [
+        {
+          name = "jeffreytse/zsh-vi-mode";
+        }
+        {
+          name = "BronzeDeer/zsh-completion-sync";
+        }
+      ];
+    };
+
+    history = {
+      append = true;
+    };
+
+    autosuggestion.enable = true;
+
+    syntaxHighlighting.enable = true;
+  };
+
+  programs.zoxide = {
+    enable = true;
+    enableZshIntegration = true;
+  };
+
+  programs.lsd = {
+    enable = true;
+    enableZshIntegration = true;
+  };
+
+  programs.oh-my-posh = {
+    enable = true;
+    enableZshIntegration = true;
+    enableBashIntegration = true;
+    settings = builtins.fromJSON (builtins.unsafeDiscardStringContext (builtins.readFile(jyumppTheme)));
+  };
+
+  # https://github.com/nvim-treesitter/nvim-treesitter#i-get-query-error-invalid-node-type-at-position
+  xdg.configFile."nvim/parser".source =
+    let
+      parsers = pkgs.symlinkJoin {
+        name = "treesitter-parsers";
+        paths = (pkgs.vimPlugins.nvim-treesitter.withPlugins (plugins: with plugins; [
+          c
+          lua
+        ])).dependencies;
+      };
+    in
+    "${parsers}/parser";
+
+}

users/root.nix

@@ -0,0 +1,51 @@
+{ config, pkgs, lib, ... }:
+
+let
+  # Fetch upstream OMP theme once
+  jyumppTheme = pkgs.fetchurl {
+    url = "https://raw.githubusercontent.com/Jyumpp/jyumpp-zsh-theme/refs/heads/master/.jyumpp.omp.json";
+    # After first build Nix will show the wanted hash; add it here for reproducibility:
+    sha256 = "sha256-jsN3hkyT0dJNTYEmDHQPp++oscQLgYGNj7PZAcIW2TA=";
+  };
+
+  # Make a root variant with red username (wraps {{ .UserName }} with ANSI red)
+  jyumppRootTheme = pkgs.runCommand "jyumpp-root.omp.json" {} ''
+    sed -E 's|\{\{[[:space:]]*\.UserName[[:space:]]*\}\}|<#FF3B30>{{ .UserName }}</>|g' \
+      ${jyumppTheme} > $out
+'';
+in
+{
+  home.username = "root";
+  home.homeDirectory = "/root";
+  home.stateVersion = "25.05";
+
+  programs.zsh = {
+    enable = true;
+
+    # Plugins
+    historySubstringSearch = {
+      enable = true;
+      searchDownKey = "^[[B";
+      searchUpKey = "^[[A";
+    };
+
+    history = {
+      append = true;
+    };
+
+    autosuggestion.enable = true;
+
+    syntaxHighlighting.enable = true;
+  };
+
+  programs.oh-my-posh = {
+    enable = true;
+    enableBashIntegration = true;
+    enableZshIntegration = true;
+    settings = builtins.fromJSON (builtins.unsafeDiscardStringContext (builtins.readFile(jyumppRootTheme)));
+
+  };
+
+  # Add any root-specific HM packages if desired
+  home.packages = [ ];
+}