refactor(flake-parts): initial flake-parts configuration

outputs/nixos/ooksphone/modules/default.nix

@@ -0,0 +1,6 @@
+{
+  imports = [
+    ./theme.nix
+    # ./openssh.nix
+  ];
+}

outputs/nixos/ooksphone/modules/openssh.nix

@@ -0,0 +1,7 @@
+{ ... }:
+{
+  programs.ssh = {
+    enable = true;
+    startAgent = true;
+  };
+}

outputs/nixos/ooksphone/modules/theme.nix

@@ -0,0 +1,43 @@
+{ pkgs, ... }:
+
+let
+  fontPackage = pkgs.nerdfonts.override { fonts = [ "JetBrainsMono" ]; };
+  fontPath = "/share/fonts/truetype/NerdFonts/JetBrainsMonoNerdFontMono-Regular.ttf";
+in
+
+{
+  terminal = {
+    font = fontPackage + fontPath;
+
+    # Gruvbox Material Dark Soft
+    colors = {
+      background = "#32302F";
+      foreground = "#DDC7A1";
+      cursor = "#DDC7A1";
+
+      color0 = "#32302F"; # Black
+      color8 = "#7C6F64"; # Bright Black
+
+      color1 = "#EA6962"; # Red
+      color9 = "#EA6962"; # Bright Red
+
+      color2 = "#A9B665"; # Green
+      color10 = "#A9B665"; # Bright Green
+
+      color3 = "#D8A657"; # Yellow
+      color11 = "#D8A657"; # Bright Yellow
+
+      color4 = "#7DAEA3"; # Blue
+      color12 = "#7DAEA3"; # Bright Blue
+
+      color5 = "#D3869B"; # Magenta
+      color13 = "#D3869B"; # Bright Magenta
+
+      color6 = "#89B482"; # Cyan
+      color14 = "#89B482"; # Bright Cyan
+
+      color7 = "#DDC7A1"; # White
+      color15 = "#FBF1C7"; # Bright White
+    };
+  };
+}