diff --git a/README.md b/README.md
index 842f011..b3e73bb 100755
--- a/README.md
+++ b/README.md
@@ -21,7 +21,8 @@ install_build_windows.bat
 ```
 git clone --recursive https://github.com/edin45/openPT3D.git (or unzip the zip you download from the stable release)
 cd openPT3D && cd externalSoftware
-sh install_build_arch.sh
+sh install_build_arch_cpu.sh for cpu or
+sh install_build_arch_gpu.sh for gpu (CUDA)
 ```
 
 ### Debian/Ubuntu/Pop OS installation:  
@@ -29,8 +30,8 @@ sh install_build_arch.sh
 ```
 git clone --recursive https://github.com/edin45/openPT3D.git (or unzip the zip you download from the stable release)
 cd openPT3D && cd externalSoftware
-sh install_python3_debian.sh
-sh install_build_debian.sh
+sh install_build_debian_cpu.sh for cpu or
+sh install_build_debian_gpu.sh for gpu (CUDA)
 ```
 
 ### Usage:  
@@ -49,5 +50,5 @@ python main.py -i [FOLDER_WITH_INPUT_IMAGES_TO_USE] -r [FOLDER_WHERE_RESULTS_ARE
 
 #### Debian:
 ```
-python3.9 main.py -i [FOLDER_WITH_INPUT_IMAGES_TO_USE] -r [FOLDER_WHERE_RESULTS_ARE_STORED]
+python3 main.py -i [FOLDER_WITH_INPUT_IMAGES_TO_USE] -r [FOLDER_WHERE_RESULTS_ARE_STORED]
 ```
diff --git a/externalSoftware/install_build_arch.sh b/externalSoftware/install_build_arch_cpu.sh
similarity index 86%
rename from externalSoftware/install_build_arch.sh
rename to externalSoftware/install_build_arch_cpu.sh
index 40aa559..395c808 100755
--- a/externalSoftware/install_build_arch.sh
+++ b/externalSoftware/install_build_arch_cpu.sh
@@ -86,15 +86,15 @@ wait
 pacman -S freeglut glew glfw pugixml
 wait
 #OpenMVS
-#git clone https://github.com/cdcseacave/openMVS.git openMVS
-wget -c "https://github.com/cdcseacave/openMVS/archive/refs/tags/v2.0.tar.gz"
-wait
-tar -xf v2.0.tar.gz
+git clone https://github.com/cdcseacave/openMVS.git openMVS
+#wget -c "https://github.com/cdcseacave/openMVS/archive/refs/tags/v2.0.tar.gz"
 wait
+#tar -xf v2.0.tar.gz
+#wait
 mkdir openMVS_Linux_CPU && cd openMVS_Linux_CPU
 wait
 echo "Using CPU" 
-cmake . ../openMVS-2.0 -DCMAKE_BUILD_TYPE=Release -DVCG_ROOT="$main_path/vcglib" -DOpenMVS_USE_CUDA=OFF
+cmake . ../openMVS -DCMAKE_BUILD_TYPE=Release -DVCG_ROOT="$main_path/vcglib" -DOpenMVS_USE_CUDA=OFF
 wait
 #Install OpenMVS library (optional):
 make -j6
diff --git a/externalSoftware/install_build_arch_gpu.sh b/externalSoftware/install_build_arch_gpu.sh
new file mode 100755
index 0000000..0a08327
--- /dev/null
+++ b/externalSoftware/install_build_arch_gpu.sh
@@ -0,0 +1,100 @@
+#! /bin/bash
+if [ "$EUID" -ne 0 ]
+  then echo "Please run as root"
+  exit
+fi
+pacman -S opencv gperf
+wait
+pacman -S cgal
+wait
+pacman -S lvtk
+wait
+pacman -S python
+wait
+pacman -S python-pip
+wait
+pip install opencv-python
+wait
+pip install numpy
+wait
+pacman -S vtk
+wait
+pacman -S curl zip unzip tar
+wait
+#git clone https://github.com/Microsoft/vcpkg
+#wait
+#cd vcpkg
+#wait
+#./bootstrap-vcpkg.sh
+#wait
+#./vcpkg install cereal ceres eigen3 libjpeg-turbo libpng tiff
+#wait
+#cd ..
+#wait
+#wget -c "https://boostorg.jfrog.io/artifactory/main/release/1.74.0/source/boost_1_74_0.tar.bz2"
+#wait
+#tar -xf boost_1_74_0.tar.bz2
+#wait
+#cd boost_1_74_0
+#wait
+#./bootstrap.sh --prefix=/usr --with-python=python3 &&
+#wait
+#./b2 stage -j4 threading=multi link=shared
+#wait
+#./b2 install threading=multi link=shared           
+#wait
+#cd ..
+#wait
+pacman -S cmake libpng libjpeg libtiff mesa boost
+wait
+pacman -S graphviz
+wait
+main_path=`pwd`
+wait
+#Eigen (Required)
+git clone https://gitlab.com/libeigen/eigen.git --branch 3.4
+wait
+mkdir eigen_build && cd eigen_build
+wait
+cmake . ../eigen
+wait
+make && sudo make install
+wait
+cd ..
+wait
+pacman -S libstdc++5 make
+wait
+pacman -Syu lib32-gcc-libs
+wait
+pacman -S gcc=libs
+wait
+pacman -S egl-wayland eglexternalplatform eigen gflags google-glog ninja
+wait
+#VCGLib (Required)
+git clone https://github.com/cdcseacave/VCG.git vcglib
+wait
+git clone https://ceres-solver.googlesource.com/ceres-solver ceres-solver
+wait
+mkdir ceres_build && cd ceres_build
+wait
+cmake . ../ceres-solver/ -DMINIGLOG=ON -DBUILD_TESTING=OFF -DBUILD_EXAMPLES=OFF
+wait
+make -j6 && sudo make install
+wait
+cd ..
+wait
+pacman -S freeglut glew glfw pugixml
+wait
+#OpenMVS
+git clone https://github.com/cdcseacave/openMVS.git openMVS
+#wget -c "https://github.com/cdcseacave/openMVS/archive/refs/tags/v2.0.tar.gz"
+wait
+#tar -xf v2.0.tar.gz
+#wait
+mkdir openMVS_Linux_CPU && cd openMVS_Linux_CPU
+wait
+echo "Using CPU" 
+cmake . ../openMVS -DCMAKE_BUILD_TYPE=Release -DVCG_ROOT="$main_path/vcglib"
+wait
+#Install OpenMVS library (optional):
+make -j6
diff --git a/externalSoftware/install_build_debian.sh b/externalSoftware/install_build_debian_cpu.sh
similarity index 88%
rename from externalSoftware/install_build_debian.sh
rename to externalSoftware/install_build_debian_cpu.sh
index fb3fcca..91189d5 100755
--- a/externalSoftware/install_build_debian.sh
+++ b/externalSoftware/install_build_debian_cpu.sh
@@ -5,9 +5,11 @@ if ! [ $(id -u) = 0 ]; then
 fi
 sudo apt update && sudo apt upgrade  
 wait
-python3.9 -m pip install opencv-python
+sudo apt install python3 python3-pip
 wait
-python3.9 -m pip install numpy
+pip install opencv-python
+wait
+pip install numpy
 wait
 apt install curl zip unzip tar bison libopencv-dev gperf autoconf libjpeg62-dev
 #wget -c "http://ftp.de.debian.org/debian/pool/main/libj/libjpeg-turbo/libjpeg-dev_2.0.6-4_amd64.deb"
@@ -83,14 +85,12 @@ wait
 sudo apt-get -y install freeglut3-dev libglew-dev libglfw3-dev
 wait
 #OpenMVS
-wget -c "https://github.com/cdcseacave/openMVS/archive/refs/tags/v2.0.tar.gz"
-wait
-tar -xf v2.0.tar.gz
+git clone https://github.com/cdcseacave/openMVS.git openMVS
 wait
 mkdir openMVS_Linux_CPU && cd openMVS_Linux_CPU
 wait
 echo "Using CPU" 
-cmake . ../openMVS-2.0 -DCMAKE_BUILD_TYPE=Release -DVCG_ROOT="$main_path/vcglib" -DOpenMVS_USE_CUDA=OFF
+cmake . ../openMVS -DCMAKE_BUILD_TYPE=Release -DVCG_ROOT="$main_path/vcglib" -DOpenMVS_USE_CUDA=OFF
 wait
 #Install OpenMVS library (optional):
 make -j6
\ No newline at end of file
diff --git a/externalSoftware/install_build_debian_gpu.sh b/externalSoftware/install_build_debian_gpu.sh
new file mode 100755
index 0000000..ab26a9a
--- /dev/null
+++ b/externalSoftware/install_build_debian_gpu.sh
@@ -0,0 +1,96 @@
+#!/bin/bash
+if ! [ $(id -u) = 0 ]; then
+   echo "Please run as root!"
+   exit 1
+fi
+sudo apt update && sudo apt upgrade  
+wait
+sudo apt install python3 python3-pip
+wait
+pip install opencv-python
+wait
+pip install numpy
+wait
+apt install curl zip unzip tar bison libopencv-dev gperf autoconf libjpeg62-dev
+#wget -c "http://ftp.de.debian.org/debian/pool/main/libj/libjpeg-turbo/libjpeg-dev_2.0.6-4_amd64.deb"
+#wait
+#dpkg -i libjpeg-dev_2.0.6-4_amd64.deb
+wait
+git clone https://github.com/Microsoft/vcpkg
+wait
+cd vcpkg
+wait
+./bootstrap-vcpkg.sh
+wait
+./vcpkg install cereal ceres eigen3 libpng tiff opencv
+wait
+cd ..
+wget -c "https://boostorg.jfrog.io/artifactory/main/release/1.74.0/source/boost_1_74_0.tar.bz2"
+wait
+tar -xf boost_1_74_0.tar.bz2
+wait
+cd boost_1_74_0
+wait
+./bootstrap.sh --prefix=/usr --with-python=python3 &&
+wait
+./b2 stage -j4 threading=multi link=shared
+wait
+./b2 install threading=multi link=shared        
+wait
+cd ..
+#Prepare and empty machine for building:
+sudo apt-get update -qq && sudo apt-get install -qq
+wait
+sudo apt-get -y install git cmake libpng-dev libjpeg-dev libtiff-dev libglu1-mesa-dev
+wait
+main_path=`pwd`
+wait
+#Eigen (Required)
+git clone https://gitlab.com/libeigen/eigen.git --branch 3.4
+wait
+mkdir eigen_build && cd eigen_build
+wait
+cmake . ../eigen
+wait
+make && sudo make install
+wait
+cd ..
+wait
+#Boost (Required)
+sudo apt-get -y install libboost-iostreams-dev libboost-program-options-dev libboost-system-dev libboost-serialization-dev
+wait
+#OpenCV (Required)
+sudo apt-get -y install libopencv-dev
+wait
+#CGAL (Required)
+sudo apt-get -y install libcgal-dev libcgal-qt5-dev
+wait
+#VCGLib (Required)
+git clone https://github.com/cdcseacave/VCG.git vcglib
+wait
+#Ceres (Optional)
+sudo apt-get -y install libatlas-base-dev libsuitesparse-dev
+wait
+git clone https://ceres-solver.googlesource.com/ceres-solver ceres-solver
+wait
+mkdir ceres_build && cd ceres_build
+wait
+cmake . ../ceres-solver/ -DMINIGLOG=ON -DBUILD_TESTING=OFF -DBUILD_EXAMPLES=OFF
+wait
+make -j2 && sudo make install
+wait
+cd ..
+wait
+#GLFW3 (Optional)
+sudo apt-get -y install freeglut3-dev libglew-dev libglfw3-dev
+wait
+#OpenMVS
+git clone https://github.com/cdcseacave/openMVS.git openMVS
+wait
+mkdir openMVS_Linux_CPU && cd openMVS_Linux_CPU
+wait
+echo "Using GPU" 
+cmake . ../openMVS -DCMAKE_BUILD_TYPE=Release -DVCG_ROOT="$main_path/vcglib"
+wait
+#Install OpenMVS library (optional):
+make -j6
\ No newline at end of file