feat: add NixOS support, Go, and Ruby on Rails; remove Rust

- Add nixos/ directory with declarative flake.nix and home.nix for NixOS
- Make all setup scripts NixOS-aware with proper detection and early exit
- Update bashrc, zshrc, and aliases with Go, Ruby on Rails, and Nix profile paths
- Replace Rust/Cargo references in shell configs with rbenv/Ruby on Rails
- Update README with NixOS quick start and full documentation

README.md

@@ -1,16 +1,39 @@
 # Fresh Install
 
 This is a collection of scripts and dotfiles I use when setting up a fresh Linux installation.
+Now compatible with **NixOS** (declarative via flakes + home-manager), as well as traditional
+distributions like Fedora, Ubuntu, Debian, and Pop!_OS.
 
 ## Quick Start
 
+### Traditional Distros (Fedora / Ubuntu / Debian / Pop!_OS)
+
 Run the main setup script to install software, configure development tools, and symlink dotfiles:
 
 ```bash
 ./main-setup.sh
 ```
 
-The script will automatically detect your Linux distribution (Fedora, Ubuntu, Debian, etc.) and use the appropriate package manager.
+The script will automatically detect your Linux distribution and use the appropriate package manager.
+
+### NixOS
+
+On NixOS, packages and configuration are managed **declaratively** using the flake in the `nixos/` directory.
+Run the main script for a guided workflow:
+
+```bash
+./main-setup.sh
+```
+
+Or apply the flake directly:
+
+```bash
+# Rebuild system configuration
+sudo nixos-rebuild switch --flake ~/dotfiles/nixos#nixos
+
+# Apply user-level configuration
+home-manager switch --flake ~/dotfiles/nixos#blake
+```
 
 ## What Gets Installed
 
@@ -27,8 +50,10 @@ The script will automatically detect your Linux distribution (Fedora, Ubuntu, De
 - **Neovim** (latest version from GitHub)
 - **Hack Nerd Font** for terminal
 - **Oh My Zsh** shell framework
-- **Starship** prompt
+- **Oh My Posh** prompt
-- **Rust** toolchain via rustup
+- **Go** (Golang) with `gopls` language server and `delve` debugger
+- **Ruby on Rails** — Ruby via rbenv, Bundler, Rails gem, Node.js
+- **Python** development tools (pip, virtualenv, pynvim)
 
 ### Fedora-Specific (.NET Development)
 On Fedora systems, additional packages are installed:
@@ -37,13 +62,16 @@ On Fedora systems, additional packages are installed:
 - **PostgreSQL** server and tools
 - **Docker** (moby-engine) with Docker Compose
 
-### Flatpak Applications
+### Flatpak Applications (Traditional Distros Only)
 - Bitwarden
+- Discord
 - Flatseal
-- Steam
+- Podman Desktop
 - ProtonUp-Qt
-- Rider
+- Signal
-- Veloren Airshipper
+- Steam
+- Teams for Linux
+- Thunderbird
 - Visual Studio Code
 - VLC Media Player
 
@@ -51,10 +79,11 @@ On Fedora systems, additional packages are installed:
 
 The setup is broken down into focused scripts:
 
-- `00-system-prep.sh` - System updates and Flathub setup
+- `00-system-prep.sh` - System updates and Flathub setup (NixOS-aware)
-- `01-package-install.sh` - Core packages and Flatpak apps
+- `01-package-install.sh` - Core packages and Flatpak apps (NixOS-aware)
-- `02-dev-tools-setup.sh` - Development tools (Neovim, Go, Rust, Helm, kubectx, stern, dive, trivy, AWS CLI)
+- `02-dev-tools-setup.sh` - Development tools: Neovim, Hack Nerd Font, Go, Ruby on Rails,
-- `03-fedora-dotnet-setup.sh` - Fedora-specific .NET environment
+  Oh My Posh, Helm, kubectx, stern, dive, trivy, AWS CLI (NixOS-aware)
+- `03-fedora-dotnet-setup.sh` - Fedora-specific .NET environment (skipped on NixOS)
 - `04-config-symlinks.sh` - Dotfile symlinking
 
 You can run individual scripts if you only need specific components.
@@ -112,10 +141,31 @@ After running the setup, remember to:
 
 ## Supported Distributions
 
+- **NixOS** — Declarative via `nixos/flake.nix` + `nixos/home.nix`
 - **Fedora** (with full .NET development environment)
 - **Ubuntu/Debian** (core packages and development tools)
 - **Pop!_OS** (core packages and development tools)
 
+## NixOS Setup (nixos/)
+
+The `nixos/` directory contains a declarative flake-based configuration:
+
+### Files
+
+- **`nixos/flake.nix`** — NixOS system configuration:
+  - System packages (Go, Ruby, Python, Kubernetes tools, networking tools)
+  - Docker, Flatpak, and virt-manager services
+  - Zsh as default shell
+  - Hack & FiraCode Nerd Fonts
+  - Neovim as default editor
+
+- **`nixos/home.nix`** — Home-manager user configuration:
+  - User packages (Go tooling, Ruby on Rails, shell tools, cloud tools)
+  - Zsh aliases and environment (Go, Ruby/Rails, Kubernetes, Docker, AWS, Terraform)
+  - Git configuration with template and includes
+  - Dotfile symlinks (bashrc, zshrc, aliases, gitconfig, gitignore)
+  - Oh My Posh theme and Nushell config
+
 ## Customization
 
 Feel free to fork this repository and modify the scripts/dotfiles to suit your needs. The modular structure makes it easy to add, remove, or modify specific components.

aliases.bash

@@ -34,6 +34,25 @@ alias py3='python3'
 alias python='python3'
 alias pip='pip3'
 
+# ── Go ──────────────────────────────────────────────────
+alias gorun='go run'
+alias gobuild='go build'
+alias gotest='go test ./...'
+alias gotidy='go mod tidy'
+alias gofmt='go fmt ./...'
+
+# ── Ruby on Rails ──────────────────────────────────────
+alias be='bundle exec'
+alias bi='bundle install'
+alias bu='bundle update'
+alias rdm='rails db:migrate'
+alias rdr='rails db:rollback'
+alias rds='rails db:seed'
+alias rrg='rails generate'
+alias rrc='rails console'
+alias rrs='rails server'
+alias rroutes='rails routes'
+
 # Pretty print the path
 alias path='echo $PATH | tr -s ":" "\n"'
 

aliases.zsh

@@ -24,7 +24,7 @@ alias nah="git reset --hard; git clean -df;"
 alias grr="git remote remove origin"
 alias gra="git remote add origin "
 
-# Python
+# ── Python ──────────────────────────────────────────────
 alias initvenv='python3 -m venv venv'
 alias startvenv='source venv/bin/activate'
 alias stopvenv='deactivate'
@@ -34,6 +34,25 @@ alias py3='python3'
 alias python='python3'
 alias pip='pip3'
 
+# ── Go ──────────────────────────────────────────────────
+alias gorun='go run'
+alias gobuild='go build'
+alias gotest='go test ./...'
+alias gotidy='go mod tidy'
+alias gofmt='go fmt ./...'
+
+# ── Ruby on Rails ──────────────────────────────────────
+alias be='bundle exec'
+alias bi='bundle install'
+alias bu='bundle update'
+alias rdm='rails db:migrate'
+alias rdr='rails db:rollback'
+alias rds='rails db:seed'
+alias rrg='rails generate'
+alias rrc='rails console'
+alias rrs='rails server'
+alias rroutes='rails routes'
+
 # Pretty print the path
 alias path='echo $PATH | tr -s ":" "\n"'
 

bashrc

@@ -10,6 +10,11 @@ DEFAULT_USER="$USER"
 # ── Editor ─────────────────────────────────────────────
 export EDITOR='nvim'
 
+# ── Nix profile ────────────────────────────────────────
+if [ -e "$HOME/.nix-profile/etc/profile.d/nix.sh" ]; then
+  . "$HOME/.nix-profile/etc/profile.d/nix.sh"
+fi
+
 # ── PATH additions ─────────────────────────────────────
 export GOPATH="$HOME/go"
 export PATH="$PATH:$GOPATH/bin:/usr/local/go/bin"
@@ -17,14 +22,18 @@ export PATH="$PATH:$HOME/.local/bin"
 export PATH="$PATH:$HOME/.pulumi/bin"
 export CPLUS_INCLUDE_PATH=/usr/local/include
 
+# ── Go ──────────────────────────────────────────────────
+# Go is available via Nix profile, home-manager, or /usr/local/go
+
+# ── Ruby on Rails (rbenv) ──────────────────────────────
+export PATH="$PATH:$HOME/.rbenv/bin"
+eval "$(rbenv init - bash 2>/dev/null || true)"
+
 # ── NVM ────────────────────────────────────────────────
 export NVM_DIR="$HOME/.nvm"
 [ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"
 [ -s "$NVM_DIR/bash_completion" ] && . "$NVM_DIR/bash_completion"
 
-# ── Rust/Cargo ─────────────────────────────────────────
-[ -f "$HOME/.cargo/env" ] && . "$HOME/.cargo/env"
-
 # ── SSH agent ──────────────────────────────────────────
 if [ -z "$SSH_AGENT_PID" ] || ! kill -0 "$SSH_AGENT_PID" 2>/dev/null; then
   eval "$(ssh-agent -s)"

main-setup.sh

@@ -2,6 +2,8 @@
 
 # Main setup script
 # Calls other scripts to perform post-installation tasks.
+# Supports NixOS (declarative via flake + home-manager) and
+# traditional distros (Fedora, Ubuntu, Debian, Pop!_OS).
 
 # --- Global Variables & Helper Functions ---
 # SCRIPT_ROOT_DIR will be the directory where main-setup.sh is located
@@ -11,17 +13,29 @@ export SCRIPTS_DIR="${SCRIPT_ROOT_DIR}/scripts"
 
 # Function to detect the Linux distribution
 detect_linux_distro() {
+    # NixOS detection (must come first — no /etc/os-release on some older
+    # versions, but modern NixOS has it with ID=nixos)
     if [ -f /etc/os-release ]; then
         # shellcheck disable=SC1091
         . /etc/os-release
         echo "$ID"
-    elif [ -f /etc/lsb-release ]; then
+        return
+    fi
+    if [ -f /etc/NIXOS ]; then
+        echo "nixos"
+        return
+    fi
+    if [ -f /etc/lsb-release ]; then
         # shellcheck disable=SC1091
         . /etc/lsb-release
         echo "$DISTRIBUTOR_ID"
-    elif [ -f /etc/debian_version ]; then
+        return
+    fi
+    if [ -f /etc/debian_version ]; then
         echo "debian"
-    elif [ -f /etc/redhat-release ]; then
+        return
+    fi
+    if [ -f /etc/redhat-release ]; then
         if grep -qi "fedora" /etc/redhat-release; then
             echo "fedora"
         elif grep -qi "centos" /etc/redhat-release; then
@@ -31,9 +45,9 @@ detect_linux_distro() {
         else
             echo "redhat"
         fi
-    else
+        return
-        echo "unknown"
     fi
+    echo "unknown"
 }
 
 # Function to prompt user for yes/no
@@ -69,6 +83,9 @@ DISTRO=$(detect_linux_distro)
 
 export PACKAGE_MANAGER
 case "$DISTRO" in
+    nixos)
+        PACKAGE_MANAGER="nix"
+        ;;
     fedora|rhel|centos)
         PACKAGE_MANAGER="dnf"
         ;;
@@ -87,8 +104,65 @@ echo "Script Root Directory: $SCRIPT_ROOT_DIR"
 echo "--------------------------------------------------"
 echo ""
 
-# --- Prompt for Setup Options ---
+# --- NixOS special path: use nixos-rebuild + home-manager ---
+if [ "$DISTRO" == "nixos" ]; then
+    echo "NixOS detected! Using declarative flake-based setup."
+    echo ""
+    echo "The recommended way to configure NixOS is through the flake"
+    echo "in the nixos/ directory. This script provides a guided"
+    echo "workflow for that approach."
+    echo ""
 
+    prompt_yes_no "Rebuild NixOS system from nixos/flake.nix (nixos-rebuild switch)?" && RUN_NIXOS_REBUILD=1 || RUN_NIXOS_REBUILD=0
+    prompt_yes_no "Apply home-manager config from nixos/home.nix (home-manager switch)?" && RUN_HOME_MANAGER=1 || RUN_HOME_MANAGER=0
+    prompt_yes_no "Install ad-hoc user packages via 'nix profile install'?" && RUN_NIX_PROFILE=1 || RUN_NIX_PROFILE=0
+    prompt_yes_no "Run config symlinks setup (04-config-symlinks.sh)?" && RUN_CONFIG_SYMLINKS=1 || RUN_CONFIG_SYMLINKS=0
+
+    echo ""
+    echo "--------------------------------------------------"
+    echo ""
+
+    if [ $RUN_NIXOS_REBUILD -eq 1 ]; then
+        echo "--- Running nixos-rebuild switch ---"
+        cd "$SCRIPT_ROOT_DIR/nixos" && sudo nixos-rebuild switch --flake .#nixos
+        echo "NixOS system rebuilt."
+        echo "--------------------------------------------------"
+    fi
+
+    if [ $RUN_HOME_MANAGER -eq 1 ]; then
+        echo "--- Running home-manager switch ---"
+        cd "$SCRIPT_ROOT_DIR/nixos" && home-manager switch --flake .#blake
+        echo "Home-manager configuration applied."
+        echo "--------------------------------------------------"
+    fi
+
+    if [ $RUN_NIX_PROFILE -eq 1 ]; then
+        echo "--- Installing ad-hoc packages via nix profile ---"
+        echo "Most packages are already in flake.nix / home.nix."
+        echo "Installing a few extras that are handy to have always available..."
+        nix profile install nixpkgs#btop nixpkgs#fastfetch nixpkgs#httpie
+        echo "Ad-hoc packages installed."
+        echo "--------------------------------------------------"
+    fi
+
+    if [ $RUN_CONFIG_SYMLINKS -eq 1 ]; then
+        echo "Executing 04-config-symlinks.sh..."
+        if ! run_script "${SCRIPTS_DIR}/04-config-symlinks.sh"; then
+            echo "WARNING: 04-config-symlinks.sh had issues."
+        fi
+        echo "--------------------------------------------------"
+    fi
+
+    echo ""
+    echo "#####################################"
+    echo "# NixOS setup finished!             #"
+    echo "# Remember to review the flake and  #"
+    echo "# home.nix for your exact needs.    #"
+    echo "#####################################"
+    exit 0
+fi
+
+# --- Traditional distro path (Fedora / Ubuntu / Debian / Pop!_OS) ---
 echo "Select which setup tasks to run:"
 echo ""
 
@@ -96,6 +170,7 @@ prompt_yes_no "Run system preparation (00-system-prep.sh)?" && RUN_SYSTEM_PREP=1
 prompt_yes_no "Run package installation (01-package-install.sh)?" && RUN_PKG_INSTALL=1 || RUN_PKG_INSTALL=0
 prompt_yes_no "Run dev tools setup (02-dev-tools-setup.sh)?" && RUN_DEV_TOOLS=1 || RUN_DEV_TOOLS=0
 
+# On Fedora, offer the .NET setup; on other distros it's skipped.
 if [ "$DISTRO" == "fedora" ]; then
     prompt_yes_no "Run Fedora .NET setup (03-fedora-dotnet-setup.sh)?" && RUN_DOTNET=1 || RUN_DOTNET=0
 else

nixos/flake.nix

@@ -0,0 +1,167 @@
+{
+  description = "Blake's NixOS configuration with dev tooling";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    home-manager = {
+      url = "github:nix-community/home-manager";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    nix-vscode-extensions.url = "github:nix-community/nix-vscode-extensions";
+  };
+
+  outputs = { self, nixpkgs, home-manager, ... }@inputs:
+    let
+      system = "x86_64-linux";
+      pkgs = import nixpkgs {
+        inherit system;
+        config.allowUnfree = true;
+      };
+    in {
+      # ── System-level configuration ──────────────────────────
+      nixosConfigurations.nixos = nixpkgs.lib.nixosSystem {
+        inherit system;
+        specialArgs = { inherit inputs; };
+        modules = [
+          ({ pkgs, ... }: {
+            # ---- Core system ----
+            boot.loader.systemd-boot.enable = true;
+            boot.loader.efi.canTouchEfiVariables = true;
+
+            networking.hostName = "nixos";
+            networking.networkmanager.enable = true;
+
+            time.timeZone = "America/Chicago";
+            i18n.defaultLocale = "en_US.UTF-8";
+
+            # ── Users ──────────────────────────────────────────
+            users.users.blake = {
+              isNormalUser = true;
+              extraGroups = [ "wheel" "networkmanager" "docker" "libvirtd" ];
+              shell = pkgs.zsh;
+            };
+
+            # ── System packages ────────────────────────────────
+            environment.systemPackages = with pkgs; [
+              # Shell & terminal
+              zsh
+              zsh-completions
+              tmux
+              oh-my-posh
+              nushell
+              eza
+              bat
+              fzf
+              zoxide
+              ripgrep
+              fd
+              jq
+              tldr
+              unzip
+              wget
+              curl
+
+              # Development - Go
+              go
+              gopls
+              delve
+
+              # Development - Ruby on Rails
+              ruby
+              bundler
+              nodejs
+              yarn
+              rbenv
+
+              # Development - Python
+              python3
+              python3Packages.pip
+              python3Packages.virtualenv
+
+              # Cloud / DevOps
+              kubectl
+              k9s
+              minikube
+              terraform
+              helm
+              kubectx
+              stern
+              dive
+              trivy
+              ansible
+              awscli2
+              direnv
+
+              # Networking
+              nmap
+              mtr
+              tcpdump
+              socat
+              whois
+              iperf3
+              traceroute
+              bind
+
+              # System
+              btop
+              fastfetch
+              virt-manager
+              flatpak
+              docker
+              docker-compose
+
+              # HTTP
+              httpie
+
+              # Git
+              git
+              gh
+
+              # Neovim
+              neovim
+            ];
+
+            # ── Flatpak ────────────────────────────────────────
+            services.flatpak.enable = true;
+
+            # ── Docker ─────────────────────────────────────────
+            virtualisation.docker.enable = true;
+
+            # ── Virtualisation (virt-manager) ──────────────────
+            virtualisation.libvirtd.enable = true;
+
+            # ── Fonts ──────────────────────────────────────────
+            fonts.packages = with pkgs; [
+              nerd-fonts.hack
+              nerd-fonts.fira-code
+            ];
+
+            # ── Programs ───────────────────────────────────────
+            programs.fish.enable = true;   # some scripts may need /bin/fish
+            programs.zsh.enable = true;
+            programs.direnv.enable = true;
+
+            # ── Nix settings ───────────────────────────────────
+            nix.settings.experimental-features = [ "nix-command" "flakes" ];
+
+            # ── Security ───────────────────────────────────────
+            services.openssh.enable = true;
+
+            # ── Neovim default editor ──────────────────────────
+            environment.variables.EDITOR = "nvim";
+
+            system.stateVersion = "24.11";
+          })
+        ];
+      };
+
+      # ── Home-manager user configuration ────────────────────
+      homeConfigurations.blake = home-manager.lib.homeManagerConfiguration {
+        inherit pkgs;
+        modules = [
+          ./home.nix
+        ];
+      };
+    };
+}
+

nixos/home.nix

@@ -0,0 +1,267 @@
+{ config, pkgs, ... }:
+
+{
+  # ── Home-manager: user-level packages & config ──────────
+
+  home.username = "blake";
+  home.homeDirectory = "/home/blake";
+  home.stateVersion = "24.11";
+
+  # ── User packages (installed via home-manager) ──────────
+  home.packages = with pkgs; [
+    # Development - Go tooling
+    go
+    gopls
+    delve
+    golangci-lint
+
+    # Development - Ruby on Rails
+    ruby
+    bundler
+    nodejs
+    yarn
+    rbenv
+    rubyPackages.rails
+
+    # Development - Python
+    python3
+    python3Packages.pip
+    python3Packages.virtualenv
+    python3Packages.pynvim
+
+    # Shell tools
+    oh-my-posh
+    eza
+    bat
+    fzf
+    ripgrep
+    fd
+    jq
+    zoxide
+    tldr
+    unzip
+    wget
+    curl
+
+    # Cloud / DevOps
+    kubectl
+    k9s
+    terraform
+    helm
+    kubectx
+    stern
+    dive
+    trivy
+    ansible
+    awscli2
+    direnv
+
+    # Networking
+    nmap
+    mtr
+    tcpdump
+    socat
+    whois
+    iperf3
+    traceroute
+
+    # System
+    btop
+    fastfetch
+    httpie
+    gh
+    git
+    tmux
+
+    # Neovim
+    neovim
+  ];
+
+  # ── Git configuration ────────────────────────────────────
+  programs.git = {
+    enable = true;
+    userName = "Blake Ridgway";
+    userEmail = "blake@blakeridgway.com";
+    signing = {
+      # signByDefault = true;
+      # key = "...";
+    };
+    extraConfig = {
+      init.defaultBranch = "main";
+      core.editor = "nvim";
+      pull.rebase = true;
+      commit.template = "~/dotfiles/commit-conventions.txt";
+    };
+    includes = [
+      { path = "~/dotfiles/.gitconfig-advancedmetrics"; condition = "gitdir:~/dev/AdvancedMetrics/"; }
+    ];
+  };
+
+  # ── Shell: Zsh ───────────────────────────────────────────
+  programs.zsh = {
+    enable = true;
+    enableCompletion = true;
+    autosuggestion.enable = true;
+    syntaxHighlighting.enable = true;
+
+    shellAliases = {
+      # Unix
+      ll = "ls -la";
+      ln = "ln -v";
+      mkdir = "mkdir -p";
+      e = "nvim";
+      v = "nvim";
+
+      # System
+      cpu = "btop";
+      mem = "btop";
+
+      # Git
+      ga = "git add";
+      gaa = "git add .";
+      gc = "git commit";
+      gp = "git push -u origin \"$(git symbolic-ref --short HEAD)\"";
+      gs = "git status";
+      nah = "git reset --hard; git clean -df;";
+      grr = "git remote remove origin";
+      gra = "git remote add origin";
+
+      # Python
+      initvenv = "python3 -m venv venv";
+      startvenv = "source venv/bin/activate";
+      stopvenv = "deactivate";
+      pyinstall = "python3 -m pip install -r requirements.txt";
+      py = "python3";
+      py3 = "python3";
+      python = "python3";
+      pip = "pip3";
+
+      # Go
+      gorun = "go run";
+      gobuild = "go build";
+      gotest = "go test ./...";
+      gotidy = "go mod tidy";
+      gofmt = "go fmt ./...";
+
+      # Ruby on Rails
+      rails = "rails";
+      rake = "rake";
+      bundle = "bundle";
+      be = "bundle exec";
+      bi = "bundle install";
+      bu = "bundle update";
+      rdm = "rails db:migrate";
+      rdr = "rails db:rollback";
+      rds = "rails db:seed";
+      rrg = "rails generate";
+      rrc = "rails console";
+      rrs = "rails server";
+      rroutes = "rails routes";
+
+      # Kubernetes
+      k = "kubectl";
+      kg = "kubectl get";
+      kgp = "kubectl get pods";
+      kgs = "kubectl get svc";
+      kgd = "kubectl get deployments";
+      kgn = "kubectl get nodes";
+      kd = "kubectl describe";
+      kl = "kubectl logs";
+      klf = "kubectl logs -f";
+      kx = "kubectx";
+      kn = "kubens";
+
+      # Terraform
+      tf = "terraform";
+      tfi = "terraform init";
+      tfa = "terraform apply";
+      tfp = "terraform plan";
+      tfd = "terraform destroy";
+      tff = "terraform fmt -recursive";
+      tfv = "terraform validate";
+      tfo = "terraform output";
+
+      # AWS
+      awsl = "aws ec2 describe-instances --query \"Reservations[*].Instances[*].[InstanceId,State.Name,Tags[?Key=='Name'].Value|[0]]\" --output table";
+
+      # Docker
+      d = "docker";
+      dc = "docker compose";
+      dcu = "docker compose up -d";
+      dcd = "docker compose down";
+      dps = "docker ps --format \"table {{.ID}}\\t{{.Names}}\\t{{.Status}}\\t{{.Ports}}\"";
+
+      # Networking
+      ports = "ss -tlnp";
+      myip = "curl -4 icanhazip.com";
+      listening = "ss -tlnp";
+
+      # Config
+      vimrc = "nvim ~/.config/nvim/init.lua";
+      ealias = "nvim ~/dotfiles/aliases.zsh";
+      zshrc = "nvim ~/.zshrc";
+      bashrc = "nvim ~/.bashrc";
+      path = "echo $PATH | tr -s ':' '\\n'";
+    };
+
+    initExtra = ''
+      # Nix profile paths
+      if [ -e "$HOME/.nix-profile/etc/profile.d/nix.sh" ]; then
+        . "$HOME/.nix-profile/etc/profile.d/nix.sh"
+      fi
+
+      # Go
+      export GOPATH="$HOME/go"
+      export PATH="$PATH:/usr/local/go/bin:$GOPATH/bin"
+
+      # Ruby on Rails (rbenv)
+      export PATH="$PATH:$HOME/.rbenv/bin"
+      eval "$(rbenv init - zsh 2>/dev/null || true)"
+
+      # Local binaries
+      export PATH="$PATH:$HOME/.local/bin:$HOME/bin"
+
+      # Editor
+      export EDITOR="nvim"
+
+      # SSH agent
+      if [ -z "$SSH_AGENT_PID" ]; then
+        eval "$(ssh-agent -s)" >/dev/null 2>&1
+        ssh-add -A 2>/dev/null || true
+      fi
+
+      # Key timeout
+      export KEYTIMEOUT=1
+
+      # Oh My Posh prompt
+      if command -v oh-my-posh &>/dev/null; then
+        eval "$(oh-my-posh init zsh --config ~/.config/oh-my-posh/theme.omp.json)"
+      fi
+    '';
+  };
+
+  # ── Neovim config (managed separately via dotfiles) ──────
+  # The nvim config lives in ~/dotfiles/nvim/ and is symlinked
+  # by the dotfiles setup script (04-config-symlinks.sh).
+
+  # ── Starship / Oh My Posh theme symlink ──────────────────
+  home.file.".config/oh-my-posh/theme.omp.json".source =
+    ../terminal/posh-theme.omp.json;
+
+  # ── Nushell config symlink ───────────────────────────────
+  home.file.".config/nushell".source = ../terminal/nushell;
+
+  # ── Dotfile symlinks ─────────────────────────────────────
+  home.file.".bashrc".source = ../bashrc;
+  home.file.".zshrc".source = ../zshrc;
+  home.file.".aliases.bash".source = ../aliases.bash;
+  home.file.".aliases.zsh".source = ../aliases.zsh;
+  home.file.".gitconfig".source = ../gitconfig;
+  home.file.".gitignore".source = ../gitignore;
+  home.file.".agignore".source = ../agignore;
+  home.file.".commit-conventions.txt".source = ../commit-conventions.txt;
+
+  # Let home-manager manage itself
+  programs.home-manager.enable = true;
+}
+

scripts/00-system-prep.sh

@@ -3,6 +3,7 @@
 # 00-system-prep.sh
 # Updates system and sets up Flathub.
 # Relies on DISTRO and PACKAGE_MANAGER being set by the caller.
+# Supports NixOS, Fedora (dnf), and Debian/Ubuntu (apt).
 
 echo "--- Starting System Preparation ---"
 
@@ -11,7 +12,15 @@ if [ -z "$DISTRO" ] || [ -z "$PACKAGE_MANAGER" ]; then
     exit 1
 fi
 
-# Update system before installing packages
+# ── NixOS path: system updates are declarative via flake ──
+if [ "$DISTRO" == "nixos" ]; then
+    echo "NixOS detected: system updates are managed declaratively via flake.nix."
+    echo "Run 'nixos-rebuild switch --flake ~/dotfiles/nixos#nixos' to apply changes."
+    echo "Skipping imperative system update."
+fi
+
+# ── Traditional distro path ────────────────────────────────
+if [ "$DISTRO" != "nixos" ]; then
     echo "Updating system packages..."
     if [ "$PACKAGE_MANAGER" == "dnf" ]; then
         sudo dnf update -y && sudo dnf upgrade -y
@@ -20,14 +29,15 @@ elif [ "$PACKAGE_MANAGER" == "apt" ]; then
     else
         echo "WARNING: Unknown package manager '$PACKAGE_MANAGER'. Skipping system update."
     fi
+fi
 
-# Setup Flatpak
+# Setup Flatpak (works on NixOS too if enabled in flake.nix)
 echo "Setting up Flathub repository..."
 if command -v flatpak &> /dev/null; then
     flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
 else
     echo "WARNING: flatpak command not found. Skipping Flathub setup."
-    echo "Ensure Flatpak is installed via 01-package-install.sh or manually."
+    echo "Ensure Flatpak is installed via your package manager or flake.nix."
 fi
 
 echo "--- System Preparation Finished ---"

scripts/01-package-install.sh

@@ -3,6 +3,7 @@
 # 01-package-install.sh
 # Installs system packages and Flatpak applications.
 # Relies on DISTRO and PACKAGE_MANAGER being set by the caller.
+# Supports NixOS (nix profile), Fedora (dnf), and Debian/Ubuntu (apt).
 
 echo "--- Starting Package Installation ---"
 
@@ -11,6 +12,26 @@ if [ -z "$DISTRO" ] || [ -z "$PACKAGE_MANAGER" ]; then
     exit 1
 fi
 
+# ── NixOS path ─────────────────────────────────────────────
+if [ "$DISTRO" == "nixos" ]; then
+    echo "NixOS detected: packages are managed declaratively via nixos/flake.nix"
+    echo "and nixos/home.nix. Run the main-setup.sh workflow or apply manually."
+    echo ""
+    echo "  sudo nixos-rebuild switch --flake ~/dotfiles/nixos#nixos"
+    echo "  home-manager switch --flake ~/dotfiles/nixos#blake"
+    echo ""
+    echo "If you want imperative ad-hoc packages, uncomment the lines below"
+    echo "or run manually:"
+    echo ""
+    echo "  nix profile install nixpkgs#<package>"
+    echo ""
+    echo "Skipping imperative package installation."
+    echo "--- Package Installation Finished ---"
+    exit 0
+fi
+
+# ── Traditional distro path (Fedora / Ubuntu / Debian) ─────
+
 # Define base package list
 BASE_PACKAGE_LIST=(
     ansible

scripts/02-dev-tools-setup.sh

@@ -2,9 +2,43 @@
 
 # 02-dev-tools-setup.sh
 # Installs various development tools and utilities.
+# Supports NixOS (declarative via flake), Fedora, and Debian/Ubuntu.
+# Relies on DISTRO and PACKAGE_MANAGER being set by the caller.
 
 echo "--- Starting Development Tools Setup ---"
 
+if [ -z "$DISTRO" ] || [ -z "$PACKAGE_MANAGER" ]; then
+    echo "ERROR: DISTRO and PACKAGE_MANAGER must be set in the environment."
+    exit 1
+fi
+
+# ── NixOS path ─────────────────────────────────────────────
+if [ "$DISTRO" == "nixos" ]; then
+    echo "NixOS detected: development tools are managed declaratively"
+    echo "via nixos/flake.nix and nixos/home.nix."
+    echo ""
+    echo "The following packages are already configured in the flake:"
+    echo "  - Go           (go, gopls, delve)"
+    echo "  - Ruby on Rails (ruby, bundler, rails, rbenv, nodejs)"
+    echo "  - Python        (python3, pip, virtualenv)"
+    echo "  - Neovim        (latest)"
+    echo "  - Cloud/DevOps  (kubectl, k9s, terraform, helm, awscli2)"
+    echo "  - Other tools   (oh-my-posh, fzf, bat, eza, ripgrep, fd)"
+    echo ""
+    echo "Run the main-setup.sh NixOS workflow or apply manually:"
+    echo ""
+    echo "  sudo nixos-rebuild switch --flake ~/dotfiles/nixos#nixos"
+    echo "  home-manager switch --flake ~/dotfiles/nixos#blake"
+    echo ""
+    echo "Skipping imperative dev tools setup."
+    echo "--- Development Tools Setup Finished ---"
+    exit 0
+fi
+
+# ═══════════════════════════════════════════════════════════
+#  TRADITIONAL DISTRO PATH (Fedora / Ubuntu / Debian / Pop)
+# ═══════════════════════════════════════════════════════════
+
 # Setup NVIM
 echo "Setting up Neovim..."
 _nvim_asset_name() {
@@ -140,21 +174,68 @@ else
   echo "✔ Oh-My-Posh already installed: $(oh-my-posh --version | head -n1)"
 fi
 
-# Install Rust Up
+# ── Ruby on Rails ──────────────────────────────────────────
-echo "Installing Rust via rustup..."
+echo ""
-if command -v rustc &>/dev/null; then
+echo "--- Setting up Ruby on Rails ---"
-    echo "Rust (rustc) already installed."
+
+if ! command -v ruby &>/dev/null; then
+  echo "➤ Installing Ruby via rbenv..."
+
+  # Install rbenv
+  if [ ! -d "$HOME/.rbenv" ]; then
+    git clone https://github.com/rbenv/rbenv.git "$HOME/.rbenv"
+    git clone https://github.com/rbenv/ruby-build.git "$HOME/.rbenv/plugins/ruby-build"
+    echo 'export PATH="$PATH:$HOME/.rbenv/bin"' >> "$HOME/.bashrc"
+    echo 'export PATH="$PATH:$HOME/.rbenv/bin"' >> "$HOME/.zshrc"
+    echo 'eval "$(rbenv init -)"' >> "$HOME/.bashrc"
+    echo 'eval "$(rbenv init -)"' >> "$HOME/.zshrc"
+    echo "rbenv installed. A new shell is needed or run:"
+    echo "  export PATH=\"\$PATH:\$HOME/.rbenv/bin\" && eval \"\$(rbenv init -)\""
   else
-    # The -y flag automates the installation, --no-modify-path prevents it from altering .profile/.bashrc directly
+    echo "rbenv already installed."
-    # You'll need to source "$HOME/.cargo/env" or add it to your shell's config manually
+  fi
-    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --no-modify-path
+
-    echo "Rust installed via rustup. Source \"\$HOME/.cargo/env\" or add it to your shell config."
+  # Install Ruby latest stable via rbenv
-    echo "For the current session, you can run: source \"\$HOME/.cargo/env\""
+  export PATH="$PATH:$HOME/.rbenv/bin"
+  eval "$(rbenv init - bash 2>/dev/null || true)"
+
+  if command -v rbenv &>/dev/null; then
+    RUBY_LATEST=$(rbenv install -l 2>/dev/null | grep -v - | tail -1)
+    if [ -n "$RUBY_LATEST" ]; then
+      echo "➤ Installing Ruby ${RUBY_LATEST} (this may take a while)..."
+      rbenv install "$RUBY_LATEST"
+      rbenv global "$RUBY_LATEST"
+      echo "Ruby ${RUBY_LATEST} installed and set as global version."
+    fi
+  fi
+else
+  echo "✔ Ruby already installed: $(ruby --version 2>/dev/null | head -n1)"
+fi
+
+# Install Bundler
+if command -v gem &>/dev/null; then
+  if ! command -v bundler &>/dev/null; then
+    echo "➤ Installing Bundler..."
+    gem install bundler
+    echo "Bundler installed."
+  else
+    echo "✔ Bundler already installed."
+  fi
+
+  # Install Rails
+  if ! command -v rails &>/dev/null; then
+    echo "➤ Installing Rails..."
+    gem install rails
+    rbenv rehash 2>/dev/null || true
+    echo "Rails installed."
+  else
+    echo "✔ Rails already installed: $(rails --version 2>/dev/null | head -n1)"
+  fi
 fi
 
 echo "--- Development Tools Setup Finished ---"
 
-# --- Helm (Kubernetes package manager) ---
+# ── Helm (Kubernetes package manager) ──────────────────────
 echo ""
 echo "--- Installing Helm ---"
 if command -v helm &>/dev/null; then

zshrc

@@ -8,6 +8,11 @@ plugins=(git)
 # Editor
 export EDITOR='nvim'
 
+# Nix profile
+if [ -e "$HOME/.nix-profile/etc/profile.d/nix.sh" ]; then
+  . "$HOME/.nix-profile/etc/profile.d/nix.sh"
+fi
+
 # Go
 export GOPATH=$HOME/go
 export PATH=$PATH:/usr/local/go/bin:$GOPATH/bin
@@ -15,14 +20,15 @@ export PATH=$PATH:/usr/local/go/bin:$GOPATH/bin
 # Local bin
 export PATH="$PATH:$HOME/.local/bin:$HOME/bin"
 
+# Ruby on Rails (rbenv)
+export PATH="$PATH:$HOME/.rbenv/bin"
+eval "$(rbenv init - zsh 2>/dev/null || true)"
+
 # Node.js and NVM configuration
 export NVM_DIR="$HOME/.nvm"
 [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
 [ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"
 
-# Rust/Cargo
-[ -f "$HOME/.cargo/env" ] && source "$HOME/.cargo/env"
-
 source $ZSH/oh-my-zsh.sh
 source $HOME/dotfiles/aliases.zsh
 
@@ -42,4 +48,6 @@ export CPLUS_INCLUDE_PATH=/usr/local/include
 [ -f ~/.fzf.zsh ] && source ~/.fzf.zsh
 
 # Oh My Posh prompt
+if command -v oh-my-posh &>/dev/null; then
   eval "$(oh-my-posh init zsh --config ~/.config/oh-my-posh/theme.omp.json)"
+fi