diff --git a/.circleci/config.yml b/.circleci/config.yml
index 89538d234a..27c9f10020 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,57 +1,27 @@
 version: 2
 jobs:
   build:
+    working_directory: ~/project
     docker:
-      - image: archlinux/base:latest
+      - image: archlinux:latest
     environment:
       DISPLAY: ""
       OMPI_ALLOW_RUN_AS_ROOT: 1
       OMPI_ALLOW_RUN_AS_ROOT_CONFIRM: 1
     steps:
+      - run: patched_glibc=glibc-linux4-2.33-4-x86_64.pkg.tar.zst && curl -LO "https://repo.archlinuxcn.org/x86_64/$patched_glibc" && bsdtar -C / -xvf "$patched_glibc"
+      - run: pacman -Syu --noconfirm
       - run: pacman -Syu --noconfirm
-      - run: pacman -S base-devel --noconfirm
-      - run: pacman -S inetutils --noconfirm
-      - run: pacman -S gawk --noconfirm
-      - run: pacman -S m4 --noconfirm
-      - run: pacman -S pkg-config --noconfirm
-      - run: pacman -S boost-libs boost --noconfirm
-      - run: pacman -S cmake --noconfirm
-      - run: pacman -S libffi --noconfirm
-      - run: pacman -S icu --noconfirm
-      - run: pacman -S qt5-base --noconfirm
-      - run: pacman -S qt5-tools --noconfirm
-      - run: pacman -S qt5-webkit --noconfirm
-      - run: pacman -S libxml2 --noconfirm
-      - run: pacman -S gcc --noconfirm
-      - run: pacman -S make --noconfirm
-      - run: pacman -S blas --noconfirm
-      - run: pacman -S lapack --noconfirm
-      - run: pacman -S lapacke --noconfirm
-      - run: pacman -S fftw --noconfirm
-      - run: pacman -S openmpi --noconfirm
-      - run: pacman -S hdf5 --noconfirm
-#      - run: pacman -S libmatio --noconfirm
-      - run: pacman -S taglib --noconfirm
-      - run: pacman -S portaudio --noconfirm
-      - run: pacman -S libsndfile --noconfirm
       - run: pacman -S git --noconfirm
-      - run: pacman -S zlib --noconfirm
-      - run: pacman -S curl --noconfirm
-      - run: pacman -S libgit2 --noconfirm
-      - run: git clone https://github.com/HDFGroup/hdf5.git /tmp/hdf5-1_10_5
-      - run: cd /tmp/hdf5-1_10_5 && git checkout hdf5-1_10_5 && ./configure --quiet --enable-shared --disable-deprecated-symbols --disable-hl --disable-strict-format-checks --disable-memory-alloc-sanity-check --disable-instrument --disable-parallel --disable-trace --disable-asserts --with-pic --with-default-api-version=v110 CFLAGS="-w" && make install -C src
-      - run: git clone https://github.com/tbeu/matio /tmp/matio
-      - run: cd /tmp/matio && git checkout v1.5.16 && cd /tmp/matio && ./autogen.sh && ./configure --enable-shared --enable-mat73=yes --enable-extended-sparse=no --with-pic --with-hdf5=/tmp/hdf5-1_10_5/hdf5 && make && make install;
-      - run: git clone https://gitlab.com/libeigen/eigen.git /tmp/eigen
-      - run: mkdir /tmp/eigen-build && cd /tmp/eigen && git checkout 3.3.9 && cd - && cd /tmp/eigen-build && cmake . /tmp/eigen && make -j4 && make install;
-      - checkout
-      - run: cmake -G "Unix Makefiles" .
-      - run: make -j4
-      - run: make get_module_skeleton
-      - run: make buildhelp
-      - run: make tests_minimal
-      - run: make package
-      - run: make benchs_all_no_display
-      - run: rm -rf ~/.gitconfig 2> /dev/null
-      - run: rm -rf /etc/gitconfig 2> /dev/null
-      - run: make tests_all_no_display
+      - run: pwd
+      - run: ls -la
+      - run: cd ~/project/
+      - run: pwd
+      - run: ls -la
+      - run: git clone https://github.com/Nelson-numerical-software/nelson.git
+      - run: pwd
+      - run: ls -la
+      - run: cd ~/project/nelson
+      - run: pwd
+      - run: ls -la           
+      - run: git checkout ${CIRCLE_BRANCH}