refactor: reorganize, add package (opencode, osgrep, beads), add ai agent shell

modules/nixos/home/default.nix

@@ -4,9 +4,9 @@
   # Desktop configs are handled directly in nixos/desktops/* modules
 
   imports = [
-    ../../home/rsydn/base.nix # Base CLI tools (git, tmux, etc.)
-    ../../home/rsydn/shell/fish.nix # Shell configuration
-    ../../home/rsydn/shell/nushell.nix # Secondary Nushell setup
+    ../../home/base.nix # Base CLI tools (git, tmux, etc.)
+    ../../home/shell/fish.nix # Shell configuration
+    ../../home/shell/nushell.nix # Secondary Nushell setup
   ];
 
   config.programs.tmux.extraConfig = lib.mkAfter ''

modules/nixos/hosts/desktop.nix

@@ -1,48 +0,0 @@
-{ lib, pkgs, ... }:
-let
-  hardwareConfigPath = builtins.toString ./.
-    + "/../desktops/hardware-configuration.nix";
-  hardwareModule = if builtins.pathExists hardwareConfigPath then
-    import hardwareConfigPath
-  else
-    (_: { });
-in {
-  # Unified desktop configuration for gaming and development
-  # Includes both KDE Plasma and Hyprland - switch at login screen
-
-  # Import hardware and desktop configurations
-  imports = [
-    # Hardware
-    hardwareModule
-
-    # Audio & Graphics
-    ../audio.nix
-    ../graphics.nix
-
-    # Desktop Environments
-    ../desktops/plasma.nix # KDE Plasma (for gaming)
-    ../desktops/hyprland # Hyprland (for development)
-
-    # Desktop Apps & Theme
-    ../desktops/apps/browsers.nix
-    ../desktops/apps/terminals.nix
-    ../desktops/themes/catppuccin.nix # Or use themes/default.nix for Adwaita
-
-    # Gaming & Features
-    ../desktops/gaming.nix
-    ../bluetooth.nix
-  ];
-
-  # Boot configuration with CachyOS LTS kernel
-  boot = {
-    loader.systemd-boot.enable = true;
-    loader.efi.canTouchEfiVariables = true;
-    kernelPackages = pkgs.linuxPackages_cachyos-lts;
-  };
-
-  # Hostname
-  networking.hostName = "desktop";
-
-  # This value determines the NixOS release compatibility
-  system.stateVersion = "24.05";
-}

modules/nixos/hosts/dev-vm.nix

@@ -1,51 +0,0 @@
-{ lib, pkgs, ... }: {
-  networking.hostName = "dev-vm";
-  # Set the baseline NixOS release used for stateful data; bump on rebuilds.
-  system.stateVersion = lib.mkDefault "24.05";
-
-  # Boot loader configuration for VM
-  boot.loader.grub.enable = lib.mkDefault true;
-  boot.loader.grub.device = lib.mkDefault "/dev/vda";
-
-  # Root filesystem configuration for VM
-  fileSystems."/" = lib.mkDefault {
-    device = "/dev/vda1";
-    fsType = "ext4";
-  };
-
-  environment.systemPackages = with pkgs; [
-    # Core utilities
-    coreutils
-    ast-grep
-    ripgrep
-    bat
-    tree
-    zip
-    unzip
-    jq
-    psmisc # provides killall and friends
-    gh
-    tree-sitter
-
-    # System monitoring & debugging tools
-    htop # Process viewer
-    iotop # I/O monitoring
-    lsof # List open files
-    strace # System call tracing
-    ltrace # Library call tracing
-    gdb # GNU debugger
-    tcpdump # Network packet analyzer
-    ncdu # Disk usage analyzer
-  ];
-
-  services.qemuGuest.enable = true;
-
-  services.openssh.openFirewall = false;
-
-  networking.firewall = {
-    allowedTCPPorts = [ ];
-    interfaces."tailscale0".allowedTCPPorts = [ 22 ];
-  };
-
-  imports = [ ../virtualization.nix ];
-}