diff --git a/base/platforms/t14/default.nix b/base/platforms/t14/default.nix
index f34b541..2e17337 100644
--- a/base/platforms/t14/default.nix
+++ b/base/platforms/t14/default.nix
@@ -25,34 +25,24 @@
 
   hardware.opengl.enable = true;
 
-  hardware.pulseaudio = {
-    enable = true;
-    package = pkgs.pulseaudioFull;
-  };
+  # esto es de la FGPA, eliminar cuando termine el curso
+  services.udev.extraRules = ''
+    # USB-Blaster
+    ATTRS{idVendor}=="09fb", ATTRS{idProduct}=="6001", MODE="660", GROUP="dialout", TAG+="uaccess"
+    ATTRS{idVendor}=="09fb", ATTRS{idProduct}=="6002", MODE="660", GROUP="dialout", TAG+="uaccess"
+    ATTRS{idVendor}=="09fb", ATTRS{idProduct}=="6003", MODE="660", GROUP="dialout", TAG+="uaccess"
 
-  hardware.bluetooth.enable = true;
-  hardware.bluetooth.settings = {
-  General = {
-    Enable = "Source,Sink,Media,Socket";
-  };
-};
+    # USB-Blaster II
+    ATTRS{idVendor}=="09fb", ATTRS{idProduct}=="6010", MODE="660", GROUP="dialout", TAG+="uaccess"
+    ATTRS{idVendor}=="09fb", ATTRS{idProduct}=="6810", MODE="660", GROUP="dialout", TAG+="uaccess"
+  '';
 
   services = {
     fwupd.enable = true;
     thinkfan.enable = true;
     tlp.enable = true;
-    tp-auto-kbbl.enable = true;
-    blueman.enable = true;
+    tp-auto-kbbl.enable =true;
   };
 
-  services = {
-    pcscd.enable = true;
-    udev.packages = [ pkgs.yubikey-personalization ];
-  };
-
-  environment.etc."pkcs11/modules/ykcs11".text = ''
-    module: ${pkgs.yubico-piv-tool}/lib/libykcs11.so
-  '';
-
 }
 
diff --git a/flake.lock b/flake.lock
index 6ce12e8..91e9f96 100644
--- a/flake.lock
+++ b/flake.lock
@@ -34,19 +34,20 @@
       "inputs": {
         "nixpkgs": [
           "nixpkgs"
-        ]
+        ],
+        "utils": "utils"
       },
       "locked": {
-        "lastModified": 1712386041,
-        "narHash": "sha256-dA82pOMQNnCJMAsPG7AXG35VmCSMZsJHTFlTHizpKWQ=",
+        "lastModified": 1679067101,
+        "narHash": "sha256-tMI1inGT9u4KWQml0w30dhWqQPlth1e9K/68sfDkEQA=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "d6bb9f934f2870e5cbc5b94c79e9db22246141ff",
+        "rev": "9154cd519a8942728038819682d6b3ff33f321bb",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
-        "ref": "release-23.11",
+        "ref": "release-22.11",
         "repo": "home-manager",
         "type": "github"
       }
@@ -87,16 +88,16 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1712310679,
-        "narHash": "sha256-XgC/a/giEeNkhme/AV1ToipoZ/IVm1MV2ntiK4Tm+pw=",
+        "lastModified": 1679318992,
+        "narHash": "sha256-uoj5Oy6hruIHuxzfQZtcalObe5kPrX9v+ClUMFEOzmE=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "72da83d9515b43550436891f538ff41d68eecc7f",
+        "rev": "e2c97799da5f5cd87adfa5017fba971771e123ef",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-23.11",
+        "ref": "nixos-22.11",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -141,6 +142,21 @@
         "repo": "nixpkgs",
         "type": "github"
       }
+    },
+    "utils": {
+      "locked": {
+        "lastModified": 1667395993,
+        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index 9a1cda6..fa62f9d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,13 +1,13 @@
 {
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.11"; # actualizar esto para actualizar
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-22.11"; # actualizar esto para actualizar
     unstable.url = "github:nixos/nixpkgs/master";
     nur.url = "github:nix-community/NUR";
     hm-isolation.url = "github:3442/hm-isolation";
     nixGL.url = "github:guibou/nixGL";
 
     home-manager = {
-      url = "github:nix-community/home-manager/release-23.11";  # actualizar esto para actualizar
+      url = "github:nix-community/home-manager/release-22.11";  # actualizar esto para actualizar
       inputs.nixpkgs.follows = "nixpkgs";
     };
   };
diff --git a/home/allowUnfreeWhitelist.nix b/home/allowUnfreeWhitelist.nix
index 3cf7571..2988e39 100644
--- a/home/allowUnfreeWhitelist.nix
+++ b/home/allowUnfreeWhitelist.nix
@@ -11,6 +11,8 @@ with lib;
     "steam"
     "steam-original"
     "steam-run"
+    "teams"
+    "unrar"
     "vscode-extension-ms-vscode-cpptools"
     "vmware-horizon-client"
     "zoom"
diff --git a/home/apps/messaging.nix b/home/apps/messaging.nix
index caaa489..b1f2178 100644
--- a/home/apps/messaging.nix
+++ b/home/apps/messaging.nix
@@ -7,7 +7,12 @@ in
   options.local.apps.messaging.enable = mkEnableOption "Messaging apps";
   config = mkIf cfg.enable {
     home.packages = with pkgs; [
+      discord
+      signal-desktop
+      tdesktop
+      teams
       thunderbird
+      zoom-us
     ];
   };
 }
diff --git a/home/apps/multimedia.nix b/home/apps/multimedia.nix
index 7219167..df0d3fe 100644
--- a/home/apps/multimedia.nix
+++ b/home/apps/multimedia.nix
@@ -8,9 +8,6 @@ in
   config = mkIf cfg.enable {
     home.packages = with pkgs; [
       deluge
-      lapce
-      ledfx
-      jack2
       mpv
       obs-studio
       pavucontrol
diff --git a/home/cli.nix b/home/cli.nix
index 67d452d..129ba50 100644
--- a/home/cli.nix
+++ b/home/cli.nix
@@ -4,7 +4,7 @@ with lib;
   programs = {
     zsh = { 
       enable = true;
-      syntaxHighlighting.enable = true;
+      enableSyntaxHighlighting = true;
       initExtra = import ./zshrc.nix pkgs;
     };
     git = {
@@ -12,61 +12,6 @@ with lib;
       userEmail = "fabian@cluster451.org";
       userName = "Fabián Montero";
       signing.key = "E77A808BF9A955D668EEEA6473FA9C9CB5F0249B";
-      extraConfig.init.defaultBranch = "main";
-    };
-    helix = {
-      enable = true;
-      settings = {
-        # theme = "onedark";
-        editor = {
-          mouse = true;
-          line-number = "absolute";
-          cursorline = true;
-          cursorcolumn = true;
-          gutters = [ "diagnostics" "spacer" "line-numbers" "diff" ];
-          auto-completion =  true;
-          auto-format = true;
-          auto-save = true;
-          bufferline = "multiple";
-          rulers = [ 80 ];
-          true-color = true;
-          lsp.display-messages = true;
-          auto-pairs = false;
-          whitespace = {
-            render = {
-              space = "all";
-              nbsp = "all";
-              tab = "all";
-              newline = "none";
-            };
-
-          };
-          indent-guides = {
-            character = "╎";
-            render = true;
-          };
-          cursor-shape = {
-            select = "block";
-            insert = "block";
-            normal = "block";
-          };
-          statusline = {
-            left = [ "mode" "spinner" "version-control" "file-name" "file-modification-indicator" "total-line-numbers" ];
-          };
-          file-picker = {
-            hidden = false;
-            follow-symlinks = false;
-            deduplicate-links = false;
-
-          };
-        };
-        keys.normal = {
-          space.space = "file_picker";
-          space.w = ":w";
-          space.q = ":q";
-          esc = [ "collapse_selection" "keep_primary_selection" ];
-        };
-      };
     };
   };
   
@@ -82,6 +27,7 @@ with lib;
     rar
     tree
     units
+    unrar
     unzip
     usbutils
     zip
diff --git a/home/default.nix b/home/default.nix
index fe4fe6c..7459784 100644
--- a/home/default.nix
+++ b/home/default.nix
@@ -39,12 +39,6 @@ with lib;
     "unstable".flake = unstable;
   };
 
-  services.gpg-agent = {
-    enable = true;
-    enableZshIntegration = true;
-    pinentryFlavor = "gtk2";
-  };
-
   programs.home-manager.enable = true;
 
   xdg = {
diff --git a/home/gui/default.nix b/home/gui/default.nix
index c308578..3585b1b 100644
--- a/home/gui/default.nix
+++ b/home/gui/default.nix
@@ -41,7 +41,6 @@ in
     
       betterlockscreen = {
         enable = true;
-	inactiveInterval = 60;
       };
     };
 
diff --git a/home/gui/i3.nix b/home/gui/i3.nix
index d165447..7f21107 100644
--- a/home/gui/i3.nix
+++ b/home/gui/i3.nix
@@ -69,6 +69,9 @@ in
           {
             command = "${pkgs.i3-gaps}/bin/i3-msg 'workspace 1; exec ${pkgs.firefox}/bin/firefox'";
           }
+          {
+            command = "${pkgs.i3-gaps}/bin/i3-msg 'workspace 2; exec ${pkgs.tdesktop}/bin/telegram-desktop'";
+          }
           {
             command = "${pkgs.i3-gaps}/bin/i3-msg 'workspace 2; exec ${pkgs.signal-desktop}/bin/signal-desktop'";
           }
diff --git a/home/platforms/t14.nix b/home/platforms/t14.nix
index f075ada..791e674 100644
--- a/home/platforms/t14.nix
+++ b/home/platforms/t14.nix
@@ -2,10 +2,6 @@
   config.local = {
     nixos = true;
 
-    apps = {
-      steam.enable = true;
-    };
-
     display = {
       "0" = "eDP-1";
       "1" = null;
diff --git a/home/shenvs/altera.nix b/home/shenvs/altera.nix
new file mode 100644
index 0000000..d780db3
--- /dev/null
+++ b/home/shenvs/altera.nix
@@ -0,0 +1,83 @@
+{ lib, pkgs, ... }:
+with lib; {
+  static = false; # !!!!
+  namespaced = true;
+
+  packages = with pkgs; [
+    (quartus-prime-lite.override { supportedDevices = [ "Cyclone V" ]; })
+    binutils
+    gcc
+    gnumake
+    gtkwave
+    verilator
+  ];
+
+  hm = {
+    # QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries.
+    home.sessionVariables.LD_LIBRARY_PATH = "${pkgs.gtk2}/lib";
+
+    # Evita GC
+    xdg.configFile."quartus-inputs".text = let
+      inherit (pkgs) requireFile;
+      homepage = "https://fpgasoftware.intel.com";
+      version = "20.1.1.720";
+      url = "${homepage}/${versions.majorMinor version}/?edition=lite&platform=linux";
+
+      inputs = [
+        (requireFile {
+          name = "QuartusLiteSetup-${version}-linux.run";
+          sha256 = "0mjp1rg312dipr7q95pb4nf4b8fwvxgflnd1vafi3g9cshbb1c3k";
+          inherit url;
+        })
+
+        (requireFile {
+          name = "ModelSimSetup-${version}-linux.run";
+          sha256 = "1cqgv8x6vqga8s4v19yhmgrr886rb6p7sbx80528df5n4rpr2k4i";
+          inherit url;
+        })
+
+        (requireFile {
+          name = "cyclonev-${version}.qdz";
+          sha256 = "11baa9zpmmfkmyv33w1r57ipf490gnd3dpi2daripf38wld8lgak";
+          inherit url;
+        })
+      ];
+    in concatStringsSep "\n" inputs;
+
+
+    # dice soto que ponga esto globalmente si quiero nightmode en todo
+    # Usar gtk en aplicaciones de jvm
+    home.sessionVariables._JAVA_OPTIONS = concatStringsSep " " [
+      "-Dawt.useSystemAAFontSettings=on"
+      "-Dswing.aatext=true"
+      "-Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel"
+      "-Dswing.crossplatformlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel"
+    ];
+
+    gtk = {
+      enable = true;
+
+      gtk2.extraConfig = ''
+        gtk-toolbar-style=GTK_TOOLBAR_BOTH_HORIZ
+        gtk-menu-images=1
+        gtk-button-images=1
+      '';
+
+      font = {
+        package = pkgs.noto-fonts;
+        name = "Noto Sans Regular";
+        #size = 14; <- caga layout de páginas
+      };
+
+      theme = {
+        package = pkgs.materia-theme;
+        name = "Materia-dark";
+      };
+    };
+
+    qt = {
+      enable = true;
+      platformTheme = "gtk";
+    };
+  };
+}
diff --git a/home/shenvs/c.nix b/home/shenvs/c.nix
index 02df9e8..e426d59 100644
--- a/home/shenvs/c.nix
+++ b/home/shenvs/c.nix
@@ -5,12 +5,12 @@
   packages = with pkgs; [
     binutils
     cmake
-    #gdb
-    #gcc-arm-embedded
+    gdb
+    gcc-arm-embedded
     gnumake
-    #lldb
-    #openocd
-    #qemu
-    #valgrind
+    lldb
+    openocd
+    qemu
+    valgrind
   ];
 }
diff --git a/home/shenvs/octave.nix b/home/shenvs/octave.nix
new file mode 100644
index 0000000..75d135a
--- /dev/null
+++ b/home/shenvs/octave.nix
@@ -0,0 +1,18 @@
+{pkgs, ...}:
+{
+  static = true;
+  
+  packages = with pkgs; [
+    (octave.withPackages (packages: with packages; [
+    	symbolic
+      signal
+    ]))
+    (python39.withPackages (packages: with packages; [
+      numpy
+      pipenv
+	    scipy
+	    sympy
+	    matplotlib
+    ]))
+  ];
+}
diff --git a/home/shenvs/python.nix b/home/shenvs/python.nix
index 53d0325..83a5f81 100644
--- a/home/shenvs/python.nix
+++ b/home/shenvs/python.nix
@@ -5,7 +5,12 @@
   packages = with pkgs; [
     pipenv
     (python310.withPackages ( packages: with packages; [
+        matplotlib
+        numpy
+        pandas
         requests
+        scipy
+        setuptools
     ]))
   ];
 }
diff --git a/home/shenvs/tex.nix b/home/shenvs/tex.nix
new file mode 100644
index 0000000..ba89df8
--- /dev/null
+++ b/home/shenvs/tex.nix
@@ -0,0 +1,22 @@
+{ pkgs, ... }:
+{
+  static = true;
+
+  packages = with pkgs; [
+    biber
+    (texlive.combine {
+      inherit (texlive)
+        appendix
+        scheme-medium
+        biblatex
+        biblatex-ieee
+        cleveref
+        csquotes
+        enumitem
+        ieeetran
+        titlesec
+        titling
+        zref;
+    })
+  ];
+}
\ No newline at end of file
diff --git a/home/systemd/default.nix b/home/systemd/default.nix
index 767e9cb..bd3dda7 100644
--- a/home/systemd/default.nix
+++ b/home/systemd/default.nix
@@ -4,11 +4,4 @@ with lib;
   systemd.user.tmpfiles.rules = [
     "d %t/tmp 0700 fabian fabian 24h"
   ];
-
-  systemd.user.services.mpris-proxy = {
-    Unit.Description = "Mpris proxy";
-    Unit.After = [ "network.target" "sound.target" ];
-    Service.ExecStart = "${pkgs.bluez}/bin/mpris-proxy";
-    Install.WantedBy = [ "default.target" ];
-  };
 }
diff --git a/pkgs/default.nix b/pkgs/default.nix
index f05a20f..f323efe 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -1,4 +1,5 @@
 pkgs:
 {
-  simplescalar = pkgs.callPackage ./simple-scalar {};
+  #andesight = pkgs.callPackage ./andesight {};
+  #netextender = pkgs.callPackage ./netextender {};
 }
diff --git a/pkgs/simple-scalar/0001-fix-case-of-YY_CURRENT_BUFFER.patch b/pkgs/simple-scalar/0001-fix-case-of-YY_CURRENT_BUFFER.patch
deleted file mode 100644
index 5d7cf85..0000000
--- a/pkgs/simple-scalar/0001-fix-case-of-YY_CURRENT_BUFFER.patch
+++ /dev/null
@@ -1,25 +0,0 @@
-From 33f6fb023c09464467eea4538f18e2a131acee3a Mon Sep 17 00:00:00 2001
-From: Alejandro Soto <alejandro@34project.org>
-Date: Wed, 26 Apr 2023 13:37:32 -0600
-Subject: [PATCH] fix case of YY_CURRENT_BUFFER
-
----
- ld/ldlex.l | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/simpleutils-990811/ld/ldlex.l b/simpleutils-990811/ld/ldlex.l
-index 2eef80f..561b8af 100644
---- a/simpleutils-990811/ld/ldlex.l
-+++ b/simpleutils-990811/ld/ldlex.l
-@@ -585,7 +585,7 @@ yy_input (buf, result, max_size)
-      int max_size;
- {
-   *result = 0; 
--  if (yy_current_buffer->yy_input_file)
-+  if (YY_CURRENT_BUFFER->yy_input_file)
-     {
-       if (yyin)
- 	{
--- 
-2.38.4
-
diff --git a/pkgs/simple-scalar/0002-define-sys_nerr.patch b/pkgs/simple-scalar/0002-define-sys_nerr.patch
deleted file mode 100644
index 021d157..0000000
--- a/pkgs/simple-scalar/0002-define-sys_nerr.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-From 442edcc1d281a62a0092bcde19038ba3c976e499 Mon Sep 17 00:00:00 2001
-From: Alejandro Soto <alejandro@34project.org>
-Date: Wed, 26 Apr 2023 13:35:21 -0600
-Subject: [PATCH 1/3] define sys_nerr
-
----
- gcc.c | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/gcc-2.7.2.3/gcc.c b/gcc-2.7.2.3/gcc.c
-index fe7de5b..1ac933f 100644
---- a/gcc-2.7.2.3/gcc.c
-+++ b/gcc-2.7.2.3/gcc.c
-@@ -176,6 +176,7 @@ extern int errno;
- #endif
- 
- extern int sys_nerr;
-+int __attribute__((weak)) sys_nerr = 0;
- #ifndef HAVE_STRERROR
- #if defined(bsd4_4)
- extern const char *const sys_errlist[];
--- 
-2.38.4
-
diff --git a/pkgs/simple-scalar/0003-fix-obstack.h-post-increment.patch b/pkgs/simple-scalar/0003-fix-obstack.h-post-increment.patch
deleted file mode 100644
index 8e38a80..0000000
--- a/pkgs/simple-scalar/0003-fix-obstack.h-post-increment.patch
+++ /dev/null
@@ -1,25 +0,0 @@
-From b074acb822459a42d2507ad5729e9e60bb1de572 Mon Sep 17 00:00:00 2001
-From: Alejandro Soto <alejandro@34project.org>
-Date: Wed, 26 Apr 2023 13:35:42 -0600
-Subject: [PATCH 2/3] fix obstack.h post-increment
-
----
- obstack.h | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/gcc-2.7.2.3/obstack.h b/gcc-2.7.2.3/obstack.h
-index 28bcd44..3a517b5 100644
---- a/gcc-2.7.2.3/obstack.h
-+++ b/gcc-2.7.2.3/obstack.h
-@@ -338,7 +338,7 @@ __extension__								\
-    if (__o->next_free + sizeof (void *) > __o->chunk_limit)		\
-      _obstack_newchunk (__o, sizeof (void *));				\
-    if (!__o->alloc_failed)						\
--     *((void **)__o->next_free)++ = ((void *)datum);			\
-+     *((void **)__o->next_free++) = ((void *)datum);			\
-    (void) 0; })
- 
- #define obstack_int_grow(OBSTACK,datum)					\
--- 
-2.38.4
-
diff --git a/pkgs/simple-scalar/0004-stdarg.h-instead-of-varargs.h.patch b/pkgs/simple-scalar/0004-stdarg.h-instead-of-varargs.h.patch
deleted file mode 100644
index 5e8fc7b..0000000
--- a/pkgs/simple-scalar/0004-stdarg.h-instead-of-varargs.h.patch
+++ /dev/null
@@ -1,25 +0,0 @@
-From 12c34c7ff8e4e00ba54bd0b90f2ca6905109cb5d Mon Sep 17 00:00:00 2001
-From: Alejandro Soto <alejandro@34project.org>
-Date: Wed, 26 Apr 2023 13:35:57 -0600
-Subject: [PATCH 3/3] stdarg.h instead of varargs.h
-
----
- protoize.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/gcc-2.7.2.3/protoize.c b/gcc-2.7.2.3/protoize.c
-index 9728bf2..fb82ef0 100644
---- a/gcc-2.7.2.3/protoize.c
-+++ b/gcc-2.7.2.3/protoize.c
-@@ -57,7 +57,7 @@ Boston, MA 02111-1307, USA.  */
- #define _POSIX_SOURCE
- #endif
- 
--#include <varargs.h>
-+#include <stdarg.h>
- /* On some systems stdio.h includes stdarg.h;
-    we must bring in varargs.h first.  */
- #include <stdio.h>
--- 
-2.38.4
-
diff --git a/pkgs/simple-scalar/default.nix b/pkgs/simple-scalar/default.nix
deleted file mode 100644
index ce64e51..0000000
--- a/pkgs/simple-scalar/default.nix
+++ /dev/null
@@ -1,118 +0,0 @@
-# https://www.cse.iitd.ac.in/~cs5070217/csl718/assignment1/ss_install_instructions.html
-{ bison, fetchurl, flex, multiStdenv, stdenv_32bit, strace }:
-let
-  host = "i686-pc-linux";
-  target = "sslittle-na-sstrix";
-
-  gcc-version = "2.7.2.3";
-  makeflags = "LANGUAGES=c CC=\"$CC -m32 $CFLAGS\" prefix=$out";
-in
-multiStdenv.mkDerivation {
-  pname = "SimpleScalar";
-  version = "1998-08-11"; # !!!
-
-  nativeBuildInputs = [ flex bison ];
-
-  sourceRoot = ".";
-
-  srcs = [
-    (fetchTarball {
-      name = "simplesim-3.0";
-
-      url = "https://www.cse.iitd.ac.in/~cs5070217/csl718/simplesim-3v0d.tgz";
-      sha256 = "sha256:022rlniimzl30c1874765hl001dxc716vfwm40ij256h1qk2dwgw";
-    })
-
-    (fetchTarball {
-      name = "simpleutils-990811";
-
-      url = "https://www.cse.iitd.ac.in/~cs5070217/csl718/simpleutils-990811.tar.gz";
-      sha256 = "sha256:0w952z382s7ghrxwrad7fd058b1kj5ad1abh8idxwwk47va72cdf";
-    })
-  ];
-
-  # El código es muy viejo y Nix usa opciones muy estrictas por defecto
-  CFLAGS = "-O3 -Wno-error=format-security";
-
-  # Algunas tarballs vienen sin directorio de primer nivel y además requieren arreglos
-  postUnpack =
-    let
-      simpletools = fetchurl {
-        url = "https://www.cse.iitd.ac.in/~cs5070217/csl718/simpletools-2v0.tgz";
-        sha256 = "sha256-FTDTqyQWZCnuNPmTcu3Hcjgp4pHNoUcC0GOGhSJV9Iw=";
-      };
-
-      gcc-ss = fetchurl {
-        url = "https://www.cse.iitd.ac.in/~cs5070217/csl718/gcc-${gcc-version}.ss.tar.gz";
-        sha256 = "sha256-3R3wsLmxoN3MkEW4gaxnhIyTBs0CUiSiH7C1/hF2atM=";
-      };
-
-      ar-and-ranlib = fetchurl {
-        url = "https://www.cse.iitd.ac.in/~cs5070217/csl718/ar_and_ranlib.tar.gz";
-        sha256 = "sha256-MRTO6cAg3WeXlk3jDy2lVuiSXDRz1+LLa2XDkBDygMU=";
-      };
-    in
-    ''
-      tar xf ${simpletools}
-      rm -r gcc-2.6.3
-
-      tar xf ${gcc-ss}
-
-      mkdir ar-and-ranlib
-      tar xf ${ar-and-ranlib} -C ar-and-ranlib
-
-      chmod -R +w gcc-${gcc-version} ar-and-ranlib
-    '';
-
-  patches = [
-    ./0001-fix-case-of-YY_CURRENT_BUFFER.patch
-    ./0002-define-sys_nerr.patch
-    ./0003-fix-obstack.h-post-increment.patch
-    ./0004-stdarg.h-instead-of-varargs.h.patch
-  ];
-
-  postPatch = ''
-    patchelf \
-      --set-interpreter "$(<${stdenv_32bit.cc}/nix-support/dynamic-linker-m32)" \
-      ar-and-ranlib/{ar,ranlib}
-  '';
-
-  configurePhase = ''
-    BUILD=$PWD
-
-    cd $BUILD/simplesim-3.0
-    make config-pisa
-
-    cd $BUILD/simpleutils-990811
-    ./configure --host=${host} --target=${target} --with-gnu-as --with-gnu-ld --prefix=$out
-
-    cd $BUILD/gcc-${gcc-version}
-    ./configure --host=${host} --target=${target} --with-gnu-as --with-gnu-ld --prefix=$out
-  '';
-
-  buildPhase = ''
-    make -C $BUILD/simplesim-3.0
-    make -C $BUILD/simpleutils-990811
-
-    # GCC necesita binutils para compilar
-    make -C $BUILD/simpleutils-990811 install
-    cp $BUILD/ar-and-ranlib/{ar,ranlib} $out/${target}/bin/
-
-    cd $BUILD/gcc-${gcc-version}
-
-    mkdir -p $out/lib
-    cp patched/sys/cdefs.h $BUILD/${target}/include/sys/cdefs.h
-    cp -r $BUILD/${target} $out/
-    cp $BUILD/${target}/lib/{libc.a,crt0.o} $out/lib/
-    sed -i '130s@-I/usr/include@-I./include@' Makefile
-
-    ! make ${makeflags}
-    sed -i 's/\(return "FIXME\\n\)/\1\\/g' insn-output.c
-    PATH="$out/${target}/bin:$PATH" make ${makeflags}
-  '';
-
-  installPhase = ''
-    cp $BUILD/simplesim-3.0/{sim-{outorder,cache,profile,bpred,eio,safe,fast},sysprobe} $out/bin/
-    PATH="$out/${target}/bin:$PATH" make -C $BUILD/gcc-${gcc-version} ${makeflags} install
-  '';
-}