Enable printing in system

This reverts commit 0e09603af7.

applications/matrix.nix

@@ -4,6 +4,6 @@ let
 in
 {
     environment.systemPackages = with pkgs; [
-        element-desktop
+        fluffychat
     ];
 }

applications/open-modelica.nix

@@ -1,9 +0,0 @@
-{ config, pkgs, lib, ... }:
-let
-    profile = import ./profile.nix;
-in
-{
-    environment.systemPackages = with pkgs; [
-        openmodelica.combined
-    ];
-}

configuration.nix

@@ -7,8 +7,8 @@ let
   profile = import ./profile.nix;
 in
 {
-  imports =
-    [ # Include the results of the hardware scan.
+  imports = [
+    # Include the results of the hardware scan.
     ./hardware-configuration.nix
     ./cron-schedule.nix
     ./home-manager.nix
@@ -18,16 +18,33 @@ in
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
+  boot.extraModulePackages = with config.boot.kernelPackages; [
+    v4l2loopback
+  ];
+
+  boot.kernelModules = [ "v4l2loopback" ];
+  boot.extraModprobeConfig = ''
+    options v4l2loopback video_nr=10 card_label=snapcam exclusive_caps=1
+  '';
+
   networking.hostName = profile.hostname; # Define your hostname.
   # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
 
   # Enable networking
-  networking.networkmanager.enable = true;
+  networking.networkmanager = {
+    enable = true;
+    plugins = with pkgs; [
+      networkmanager-ssh
+      networkmanager-openvpn
+      networkmanager-strongswan
+    ];
+
+  };
 
   # Set your time zone.
   time.timeZone = "Europe/Berlin";
 
-  # Select internationalisation properties.
+  # Select internationalization properties.
   i18n.defaultLocale = "de_DE.UTF-8";
 
   i18n.extraLocaleSettings = {
@@ -48,24 +65,87 @@ in
     variant = "";
   };
 
+  # Podman service setup
+  virtualisation.containers.enable = true;
+  virtualisation = {
+    podman = {
+      enable = true;
+
+      # Create a `docker` alias for podman, to use it as a drop-in replacement
+      dockerCompat = false;
+
+      # Required for containers under podman-compose to be able to talk to each other.
+      defaultNetwork.settings.dns_enabled = true;
+    };
+  };
+
   # Configure console keymap
   console.keyMap = "de-latin1";
 
+  virtualisation.docker.enable = true;
+
   environment.systemPackages = with pkgs; [
     wget
-        networkmanager
-        epiphany
+    strongswan
     nodejs_24
-        podman
+    dive
     podman-tui
     podman-compose
+    docker-compose
+    gmp
+    gmp.dev
+    pkg-config
   ];
 
+  programs.nix-ld = {
+    enable = true;
+    libraries = with pkgs; [
+      stdenv.cc.cc
+      zlib
+      gmp
+      openssl
+      curl
+      glib
+      gtk3
+      libGL
+      xorg.libX11
+      appimage-run
+      libgcrypt
+      libxcrypt
+      rclone
+    ];
+  };
+
+  hardware.bluetooth = {
+    enable = true;
+    powerOnBoot = true;
+    settings = {
+      General = {
+        # Shows battery charge of connected devices on supported
+        # Bluetooth adapters. Defaults to 'false'.
+        Experimental = true;
+        # When enabled other devices can connect faster to us, however
+        # the tradeoff is increased power consumption. Defaults to
+        # 'false'.
+        FastConnectable = true;
+      };
+      Policy = {
+        # Enable all controllers when they are found. This includes
+        # adapters present on start as well as adapters that are plugged
+        # in later on. Defaults to 'true'.
+        AutoEnable = true;
+      };
+    };
+  };
+  services.blueman.enable = true;
+
   # Enable the OpenSSH daemon.
   services.openssh.enable = true;
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.settings.experimental-features = [
+    "nix-command"
+    "flakes"
+  ];
   nixpkgs.config.allowUnfree = true;
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

desktop-environment/config.nix

@@ -8,7 +8,7 @@ in
         ./browser.nix
         ./planner.nix
         ./window-manager.nix
-        ../applications/matrix-element.nix
+        ../applications/matrix.nix
     ];
 
     environment.systemPackages = with pkgs; [

desktop-environment/window-manager/hyprland.nix

@@ -8,8 +8,8 @@ let
 
     dotfiles_waybar = pkgs.fetchgit {
         url = "https://git.nichkara.eu/dotfiles/waybar";
-        rev = "47a5d2b7795fcdb26bff3a91864d19158cfc5c5c";
-        sha256 = "sha256-0S0S+qIEa20GWeHGEOzji6rPQPPzDvyZFpyHewLuxKw=";
+        rev = "cd3d5d8a97f9fbc1cc8a69fc9e570dfcf669dce7";
+        sha256 = "sha256-FTpGumhxY6ChUXqnykO+aSJiFD4A80W0eqx7hXS9Iwc=";
     };
 
     profile = import ../../profile.nix;
@@ -28,6 +28,8 @@ in
         pamixer
         pavucontrol
         brightnessctl
+        python313Packages.requests
+        networkmanagerapplet
     ];
 
     fonts.packages = with pkgs; [
@@ -43,18 +45,4 @@ in
     programs.waybar = {
         enable = true;
     };
-
-    home-manager.users.${profile.username} = { ... }: {
-        home.file.".config/hypr" = {
-            source = dotfiles_hypr;
-            recursive = true;
-        };
-
-        home.file.".config/waybar" = {
-            source = dotfiles_waybar;
-            recursive = true;
-        };
-
-    };
-
 }

home-manager.nix

@@ -7,7 +7,6 @@ in
 {
 
     imports = [
-        <home-manager/nixos>
         ./desktop-environment/config.nix
         ./terminal-environment/config.nix
         ./system-environment/config.nix
@@ -15,53 +14,13 @@ in
 
     users.users.${profile.username} = {
         isNormalUser = true;
-        description = "Nina Chloé Kassandra";
-        extraGroups = [ "networkmanager" "wheel" "docker" "scanner" "lp"];
+        description = "Nina Chlóe Kassandra";
+        extraGroups = ["disks" "storage" "networkmanager" "wheel" "docker" "scanner" "lp" "uucp" "dialout"];
         packages = with pkgs; [];
         shell = pkgs.zsh;
 	    hashedPassword = profile.hashed-password;
     };
 
-    home-manager.backupFileExtension = "bck.lck";
-
-    home-manager.users.${profile.username} = { pkgs, ... }: {
-        home.stateVersion = "25.11";
-        programs.git = {
-            enable = true;
-            settings = {
-                user = {
-                    name = "Nina Chloé Kassandra Reiß";
-                    email = "nina.reiss@nickr.eu";
-                };
-                push = {
-                    autoSetupRemote = true;
-                };
-            };
-        };
-
-        programs.ssh = {
-          enable = true;
-
-          extraConfig = ''
-            Host git.nickr.eu
-                HostName git.nickr.eu
-                Port 22
-
-            Host nickr.eu
-                HostName nickr.eu
-                Port 222
-
-            Host nichkara.eu
-                HostName nichkara.eu
-                Port 222
-
-            Host git.nichkara.eu
-                HostName git.nichkara.eu
-                Port 22
-          '';
-        };
-    };
-
     systemd.services.generate-ssh-key = {
     	description = "Generate SSH key if missing";
     	wantedBy = [ "multi-user.target" ];

system-environment/config.nix

@@ -8,9 +8,12 @@ in
     ./file-system.nix
     ./media.nix
     ./security/keyring.nix
+    ./printer.nix
   ];
 
-    environment.systemPackages = with pkgs; [
+  environment.systemPackages =
+    with pkgs;
+    [
       gnumake
       python3
     ]
@@ -27,7 +30,14 @@ in
 
       # Ada/+Spark & Rust tools
       alire
-        gnat
+      gnat15
+      gnat15Packages.gprbuild
+      gnat15Packages.gpr2
+      gnat15Packages.gnatprove
+      gnat15Packages.gnatcoll-core
+      gnat15Packages.gnatcoll-readline
+      gnat15Packages.gnatcoll-python3
+      gnat15Packages.gnatcoll-gmp
       rustc
       cargo
     ];
@@ -35,5 +45,4 @@ in
   environment.variables = {
   };
 
-
 }

system-environment/file-system.nix

@@ -1,6 +1,9 @@
 { pkgs, ... }:
 {
 
+    services.udisks2.enable = true;
+    services.gvfs.enable = true;
+
     environment.systemPackages = with pkgs; [
         nextcloud-client
         unzip

system-environment/printer.nix

@@ -0,0 +1,185 @@
+# Optional stuff to add to profile:
+#   add your user to scanner/lp groups if needed:
+#   users.users.<name>.extraGroups = [ "scanner" "lp" ];
+
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+
+{
+  ##########################################################################
+  # Printing
+  ##########################################################################
+
+  services.printing = {
+    enable = true;
+
+    # Driver collection
+    drivers = with pkgs; [
+      gutenprint
+      hplip
+      brlaser
+
+      # Canon inkjet support
+      cnijfilter2
+
+      # Generic IPP/AirPrint support
+      cups-filters
+    ];
+
+    # Network printer discovery
+    browsing = true;
+    defaultShared = false;
+
+    listenAddresses = [ "*:631" ];
+    allowFrom = [ "all" ];
+  };
+
+  # Avahi/mDNS for automatic printer discovery
+  services.avahi = {
+    enable = true;
+    nssmdns4 = true;
+    openFirewall = true;
+
+    publish = {
+      enable = true;
+      userServices = true;
+    };
+  };
+
+  # Scanner discovery over network
+  hardware.sane = {
+    enable = true;
+
+    extraBackends = with pkgs; [
+      sane-airscan
+      brscan4
+      epson-escpr
+    ];
+  };
+
+  # Enable sane daemon
+  services.saned.enable = true;
+
+  # Some Brother scanners need this
+  environment.etc."sane.d/dll.d/brother".text = ''
+    brother4
+  '';
+
+  ##########################################################################
+  # OCR / PDF / Document Processing
+  ##########################################################################
+
+  environment.systemPackages = with pkgs; [
+
+    ######################################################################
+    # Printing / scanning GUI tools
+    ######################################################################
+
+    system-config-printer
+    simple-scan
+    xsane
+    sane-airscan
+
+    ######################################################################
+    # OCR
+    ######################################################################
+
+    tesseract
+    tesseract4
+    ocrmypdf
+
+    ######################################################################
+    # PDF tools
+    ######################################################################
+
+    poppler-utils
+    pdftk
+    qpdf
+    pdfcpu
+    mupdf
+
+    ######################################################################
+    # Image processing
+    ######################################################################
+
+    graphicsmagick
+
+    ######################################################################
+    # EPUB / HTML / Markdown / TeX conversions
+    ######################################################################
+
+    pandoc
+
+    ######################################################################
+    # Extra document tooling
+    ######################################################################
+
+    ghostscript
+    djvulibre
+    unoconv
+
+    ######################################################################
+    # CLI helpers
+    ######################################################################
+
+    file
+    ripgrep
+    fd
+    jq
+  ];
+
+  ##########################################################################
+  # Firewall
+  ##########################################################################
+
+  networking.firewall.allowedTCPPorts = [
+    631 # CUPS / IPP
+  ];
+
+  networking.firewall.allowedUDPPorts = [
+    5353 # mDNS / Avahi
+  ];
+
+  ##########################################################################
+  # Helpful shell aliases
+  ##########################################################################
+
+  environment.shellAliases = {
+
+    # Find printers/scanners
+    printers = "lpstat -e";
+    scanner-find = "scanimage -L";
+
+    # OCR examples
+    ocr-pdf = "ocrmypdf";
+    ocr-img = "tesseract";
+
+    # Convert markdown -> pdf
+    md2pdf = "pandoc -o output.pdf";
+
+    # Convert epub -> pdf
+    epub2pdf = "ebook-convert";
+
+    # Convert pdf -> text
+    pdf2txt = "pdftotext";
+
+    # Scan one page
+    scan-one = ''
+      scanimage --format=png > scan.png
+    '';
+
+    # Continuous scans until CTRL+C
+    scan-loop = ''
+      while true; do
+        TS=$(date +%s)
+        scanimage --format=png > scan-$TS.png
+        echo "scanned: scan-$TS.png"
+        sleep 1
+      done
+    '';
+  };
+}

terminal-environment/config.nix

@@ -6,12 +6,14 @@ in
 
    imports = [
       ./editor.nix
+      ./tex-environment.nix
    ];
 
     environment.systemPackages = with pkgs; [
         astyle
         hyfetch
         fzf-zsh
+        distrobox
     ];
 
     programs.tmux = {
@@ -22,6 +24,9 @@ in
         '';
     };
 
+    programs.direnv.enable = true;
+    programs.direnv.nix-direnv.enable = true;
+
     programs.zsh = {
         enable = true;
         enableCompletion = true;
@@ -59,58 +64,4 @@ in
             theme = "sonicradish";
         };
     };
-
-    home-manager.users.${profile.username} = { ... }: {
-        programs.zsh = {
-            enable = true;
-            enableCompletion = true;
-            autocd = true;
-
-            autosuggestion = {
-                enable = true;
-            };
-
-            syntaxHighlighting = {
-                enable = true;
-            };
-
-            history = {
-                size = 4096;
-                ignoreSpace = true;
-                ignorePatterns = [  ];
-                saveNoDups = true;
-                ignoreAllDups = true;
-            };
-
-            oh-my-zsh = {
-                enable = true;
-                theme = "sonicradish";
-                plugins = [
-                    "git"
-                    "z"
-                    "dotenv"
-                    "battery"
-                    "emoji"
-                    "emoji-clock"
-                    "fzf"
-                    "kitty"
-                    "themes"
-                    "tmux"
-                    "vi-mode"
-                ];
-            };
-
-            setOptions = [
-                "HIST_IGNORE_ALL_DUPS"
-            ];
-
-            shellAliases = {
-                ll = "ls -lh";
-                nix-check = "nixos-rebuild build";
-                nix-update = "sudo nixos-rebuild switch";
-                sirc = "ssh -t nichkara.eu tmux new-session -A -s weechat weechat";
-            };
-        };
-    };
-
 }

terminal-environment/editor.nix

@@ -9,6 +9,8 @@ in
       fzf
       ripgrep
       ripgrep-all
+      ctags
+      lua54Packages.luarocks-nix
    ];
 
    programs.neovim = {
@@ -17,5 +19,7 @@ in
       withPython3 = true;
       withRuby = true;
       withNodeJs = true;
+      viAlias = true;
+      vimAlias = true;
    };
 }

terminal-environment/genv/default.nix

@@ -0,0 +1,67 @@
+{ pkgs, lib, ... }:
+
+let
+  genv = pkgs.writeShellScriptBin "genv" ''
+    #!/usr/bin/env bash
+    set -e
+
+    DISTRO="$1"
+    PRESET="$2"
+
+    if [ -z "$DISTRO" ] || [ -z "$PRESET" ]; then
+      echo "Usage: genv <distro> <preset>"
+      exit 1
+    fi
+
+    PROJECT=$(basename "$PWD")
+    BOX="genv-$PROJECT"
+
+    # distro mapping
+    case "$DISTRO" in
+      ubuntu) IMAGE="docker.io/library/ubuntu:24.04" ;;
+      arch) IMAGE="docker.io/library/archlinux:latest" ;;
+      alpine) IMAGE="docker.io/library/alpine:latest" ;;
+      *) IMAGE="$DISTRO" ;;
+    esac
+
+    echo "[genv] image: $IMAGE"
+
+    # container nur erstellen wenn nötig
+    if ! distrobox list | grep -q "$BOX"; then
+      distrobox create --name "$BOX" --image "$IMAGE"
+    fi
+
+    mkdir -p .genv
+
+    # preset kopieren
+    cp ${./presets}/$PRESET.sh .genv/setup.sh
+    chmod +x .genv/setup.sh
+
+    # envrc generieren
+    cat > .envrc <<EOF
+export GENV_BOX="$BOX"
+
+# container starten
+distrobox start "$GENV_BOX" >/dev/null 2>&1 || true
+
+# setup einmalig
+if [ ! -f .genv/.init ]; then
+  echo "[genv] setup läuft"
+  distrobox enter "$GENV_BOX" -- bash .genv/setup.sh
+  touch .genv/.init
+fi
+
+# tmux workflow
+if [ -z "$TMUX" ]; then
+  tmux new-session -A -s "$GENV_BOX" \
+    \; new-window -n editor "nvim" \
+    \; new-window -n dev "distrobox enter $GENV_BOX"
+fi
+EOF
+
+    echo "[genv] fertig → direnv allow"
+  '';
+in
+{
+  home.packages = [ genv ];
+}

terminal-environment/genv/presets/c.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -e
+
+if command -v apt >/dev/null; then
+  sudo apt update
+  sudo apt install -y build-essential cmake
+elif command -v pacman >/dev/null; then
+  sudo pacman -Sy --noconfirm base-devel cmake
+elif command -v apk >/dev/null; then
+  sudo apk add build-base cmake
+fi

terminal-environment/genv/presets/data-science.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -e
+
+if command -v apt >/dev/null; then
+  sudo apt update
+  sudo apt install -y python3
+elif command -v pacman >/dev/null; then
+  sudo pacman -Sy --noconfirm base-devel python3
+elif command -v apk >/dev/null; then
+  sudo apk add build-base python3
+fi

terminal-environment/tex-environment.nix

@@ -0,0 +1,11 @@
+{ config, pkgs, ... }:
+let
+    profile = import ../profile.nix;
+in
+{
+
+   environment.systemPackages = with pkgs; [
+      texliveMedium
+   ];
+
+}