configuration.nix

@@ -11,30 +11,31 @@
 # your system.  Help is available in the configuration.nix(5) man page
 # and in the NixOS manual (accessible by running ‘nixos-help’).
 
-{ config, pkgs, lib, ... }: {
+{ config, pkgs, ... }:
-  imports = [ 
-    # Include the results of the hardware scan.
-    ./hardware-configuration.nix
-  ];
 
-  config = lib.mkMerge [
+## LaTeX...
-    # Base configuration...
+#let tex = pkg.texlive.combine {
-    #
+#  inherit (pkgs.texlive) scheme-basic
-    # The configuration is split into two parts to allow for two stage updates to conserve space
+#  kvoptions calc xargs ifthen iftex pgffor xint xinttools listofitems xkeyval
-    # on storage-limited systems.
+#  etoolbox changepage pdfcomment eso-pic environ numprint trimclip xcolor
-    #
+#  pagecolor colorspace graphicx adjustbox textpos fancyvrb flowfram rotating
-    # To run a two stage update do:
+#  fancyhdr pdfpages geometry;
-    #   $ sudo NIX_LIGHTWEIGHT=1 nixos-rebbuild switch
+#  #(setq org-latex-compiler "lualatex")
-    #   $ reboot
+#  #(setq org-preview-latex-default-process 'dvisvgm)
-    #   $ sudo nix-collect-garbage --delete-old
+#};
-    #   $ sudo nixos-rebbuild switch
+#in
-    #
+
-    {
+{
   nix.settings.experimental-features = [ 
     "nix-command" 
     "flakes"
   ];
 
+  imports = [ 
+    # Include the results of the hardware scan.
+    ./hardware-configuration.nix
+  ];
+
   # Allow unfree packages
   nixpkgs.config.allowUnfree = true;
 
@@ -189,15 +190,13 @@
     pkgs.gnome-tour 
   ];
 
-      security.rtkit.enable = true;
-
   # Enable CUPS to print documents.
   services.printing.enable = true;
 
   # Enable sound with pipewire.
   #sound.enable = true;
-      #hardware.pulseaudio.enable = false;
+  hardware.pulseaudio.enable = false;
-      services.pulseaudio.enable = false;
+  security.rtkit.enable = true;
   services.pipewire = {
     enable = true;
     alsa.enable = true;
@@ -323,8 +322,7 @@
   environment.systemPackages = with pkgs; [
     usbutils udiskie udisks
     exfat exfatprogs
-        # XXX 20250614: does not build on 25.05
+    scrounge-ntfs
-        #scrounge-ntfs
 
     vim-full
     #micro
@@ -361,7 +359,31 @@
     tldr
     bat
 
+    # LaTeX
+    (texlive.combine {
+      inherit (texlive) scheme-medium
+      # missing:
+      #   calc graphicx ifthen pgffor rotating trimclip xinttools 
+      kvoptions xargs ifthenx iftex xint listofitems xkeyval
+      etoolbox changepage pdfcomment eso-pic environ numprint xcolor
+      pagecolor colorspace graphics adjustbox textpos fancyvrb flowfram
+      fancyhdr pdfpages geometry 
+      anyfontsize cprotect ccicons 
+      # XXX this seems to be missing...
+      #suffix 
+      lipsum 
+      hardwrap catchfile 
+      # photobook...
+      photobook
+      # doc...
+      titlesec hypdoc doctools needspace xstring listings imakeidx  
+      latexmk;
+      #(setq org-latex-compiler "lualatex")
+      #(setq org-preview-latex-default-process 'dvisvgm)
+    })
+
     # fonts...
+    nerdfonts
     terminus_font 
 
     # GUI
@@ -421,6 +443,10 @@
     ffmpeg #ffmpegthumbnailer
     httrack
 
+    #blender
+    #krita
+
+    #texlive.combined.scheme-full 
   ];
 
   programs.geary.enable = false;
@@ -475,55 +501,4 @@
   # Before changing this value read the documentation for this option
   # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
   system.stateVersion = "23.05"; # Did you read the comment?
-    }
-
-
-    # Full config...
-    (lib.mkIf (builtins.getEnv "NIX_LIGHTWEIGHT" == "") {
-      environment.systemPackages = with pkgs; [
-
-        # LaTeX
-        #texlive.combined.scheme-full 
-        (texlive.combine {
-          inherit (texlive) scheme-medium
-          # missing:
-          #   calc graphicx ifthen pgffor rotating trimclip xinttools 
-          kvoptions xargs ifthenx iftex xint listofitems xkeyval
-          etoolbox changepage pdfcomment eso-pic environ numprint xcolor
-          pagecolor colorspace graphics adjustbox textpos fancyvrb flowfram
-          fancyhdr pdfpages geometry 
-          anyfontsize cprotect ccicons 
-          # XXX this seems to be missing...
-          #suffix 
-          lipsum 
-          hardwrap catchfile 
-          # photobook...
-          photobook
-          # doc...
-          titlesec hypdoc doctools needspace xstring listings imakeidx  
-          latexmk;
-          #(setq org-latex-compiler "lualatex")
-          #(setq org-preview-latex-default-process 'dvisvgm)
-        })
-
-        # fonts...
-        #nerdfonts
-
-        #blender
-        #krita
-        #gimp3
-        gimp3-with-plugins
-
-      ];
-
-      # Nerd Fonts...
-      fonts.packages = [
-        pkgs.nerd-fonts.droid-sans-mono
-      ];
-      #fonts.packages = [ ... ] ++ builtins.filter lib.attrsets.isDerivation (builtins.attrValues pkgs.nerd-fonts);
-      # all nerd fonts (~8G)...
-      #fonts.packages = builtins.filter lib.attrsets.isDerivation (builtins.attrValues pkgs.nerd-fonts);
-
-    }) 
-  ];
 }