separate configs, LTE modem, wireguard, zsh

modules/packages.nix

@@ -0,0 +1,62 @@
+# System packages configuration
+{ config, pkgs, lib, ... }:
+
+{
+  # Allow unfree packages
+  nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
+    "castlabs-electron"
+    "tidal-hifi"
+    "discord-ptb"
+  ];
+
+  # List packages installed in system profile.
+  environment.systemPackages = with pkgs; [
+    # Core utilities
+    nano
+    git
+    curl
+    wget
+    htop
+    fastfetch
+    ncdu
+    file
+    tree
+    unzip
+    zip
+    rsync
+
+    # Modern CLI replacements
+    ripgrep     # rg - faster grep
+    fd          # faster find
+    bat         # better cat with syntax highlighting
+    eza         # better ls (exa replacement)
+    duf         # better df
+    jq          # JSON processor
+
+    # Hardware & system info
+    pciutils    # lspci
+    usbutils    # lsusb
+    lsof        # list open files
+    iotop       # disk I/O monitor
+
+    # Networking tools
+    net-tools   # netstat, ifconfig (legacy)
+    iproute2    # ss, ip (modern)
+    dnsutils    # dig, nslookup
+    traceroute
+    nmap        # network scanner
+
+    # Filesystem
+    os-prober
+    btrfs-progs
+
+    # Development
+    nodejs_20
+    gnupg
+
+    # WWAN modem tools
+    libmbim
+    libqmi
+    modemmanager
+  ];
+}