diff --git a/.github/workflows/conda.yaml b/.github/workflows/conda.yaml
new file mode 100644
index 00000000..d2074cbc
--- /dev/null
+++ b/.github/workflows/conda.yaml
@@ -0,0 +1,72 @@
+name: Conda
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+on: push
+
+jobs:
+
+  Update-conda-package-version:
+
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+      
+      - name: Set Env variable with project version
+        run: |
+            echo "VERSION=$(grep "project(" CMakeLists.txt | grep -E -o -e "[0-9\.]+")" >> $GITHUB_ENV
+          
+      - name: Print project version
+        run: |
+            echo "Project version: $VERSION"
+
+      - name: Update conda package version
+        run: |
+          sed -i '/version: /c\  version: \"'$VERSION'\"' conda/meta.yaml
+      
+      - uses: stefanzweifel/git-auto-commit-action@v5
+        with:
+            commit_message: Change to conda package version
+            file_pattern: 'conda/meta.yaml'
+
+  # build:
+  #   needs: Update-conda-package-version
+
+  #   runs-on: ubuntu-latest
+
+  #   defaults:
+  #     run:
+  #       shell: bash -l {0}
+
+  #   permissions:
+  #     contents: write
+
+  #   env:
+  #     CONDA_PKG_DIR: ~/conda_pkgs_dir
+  #     GH_TOKEN: ${{ github.token }}
+
+  #   steps:
+
+  #     - name: Checkout
+  #       uses: actions/checkout@v4
+      
+  #     - name: Setup conda
+  #       uses: conda-incubator/setup-miniconda@v3
+  #       with:
+  #         use-mamba: true
+  #         python-version: 3.12
+  #         environment-file: conda/conda-env.yaml
+  #         activate-environment: dev-viewshed
+
+  #     - name: Build library
+  #       run: |
+  #         conda build conda
diff --git a/.github/workflows/create_releases.yaml b/.github/workflows/create_releases.yaml
index aed9464a..f3a5776a 100644
--- a/.github/workflows/create_releases.yaml
+++ b/.github/workflows/create_releases.yaml
@@ -1,4 +1,8 @@
-name: Prepare Deb Release, Docker Release, Release to PPA
+name: Prepare Deb Release, Docker Release
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
 
 on:
   workflow_run:
diff --git a/.github/workflows/test_library.yaml b/.github/workflows/test_library.yaml
index 7614a0e4..4855d5cb 100644
--- a/.github/workflows/test_library.yaml
+++ b/.github/workflows/test_library.yaml
@@ -1,5 +1,10 @@
 name: Tests for Library
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+
 on: [push, pull_request]
 
 env:
@@ -9,7 +14,7 @@ jobs:
 
   Tests-Viewshed-library:
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
 
     env:
       DEBIAN_FRONTEND: "noninteractive"
@@ -97,17 +102,51 @@ jobs:
           cmake --build build --config Release --target build_tests
           cmake --build build --config Release --target run_tests
 
-      - name: Install Qt
-        uses: jurplel/install-qt-action@v3
-        with:
-          version: '5.15.2'
-          host: 'linux'
-      
-      - name: Clean Build
+  Tests-Viewshed-library-with-Qt:
+
+    runs-on: ubuntu-22.04
+
+    env:
+      DEBIAN_FRONTEND: "noninteractive"
+      QT_QPA_PLATFORM: "offscreen"
+      XDG_RUNTIME_DIR: "/tmp"
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+    steps:
+
+      - name: Update and Upgrade
         run: |
-          rm -rf build
-          mkdir build
+          sudo apt update
+          sudo apt install ninja-build doxygen libgtest-dev libgmock-dev clang
+
+      - name: Install GDAL
+        run: |
+          sudo add-apt-repository ppa:ubuntugis/ppa
+          sudo apt update
+          sudo apt-get -y install gdal-bin libgdal-dev
       
+      - uses: robinraju/release-downloader@v1
+        with:
+          repository: "JanCaha/cpp-simplerasters"
+          latest: true
+          fileName: "*.deb"
+          tarBall: false
+          zipBall: false
+ 
+      - name: Install and remove artifact
+        run: |
+          sudo apt install ./simplerasters*.deb
+          rm simplerasters*
+
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Install Qt
+        run: |
+          sudo apt install qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools
+            
       - name: Configure
         run: | 
           cmake \
@@ -134,6 +173,4 @@ jobs:
       - name: Test Install
         run: |
           cmake --build build --config Release --target all
-          sudo cmake --build build --config Release --target install
-
-      
+          sudo cmake --build build --config Release --target install
\ No newline at end of file
diff --git a/conda/meta.yaml b/conda/meta.yaml
new file mode 100644
index 00000000..2aeba8a6
--- /dev/null
+++ b/conda/meta.yaml
@@ -0,0 +1,37 @@
+package:
+  name: libviewshed
+  version: "4.1.0"
+
+source:
+  path: ..
+
+build:
+  number: 0
+  script:
+    - cmake -B build -S {{SRC_DIR}} -G Ninja -DCMAKE_BUILD_TYPE=Release -DPACK_DEB:bool=off -DBUILD_DOCUMENTATION:bool=off -DBUILD_TESTS:bool=off -DCELL_EVENT_DATA_FLOAT:bool=on -DOUTPUT_RASTER_DATA_FLOAT:bool=on -DNEEDS_QT:bool=off
+    - cmake --build build --config Release
+    - cmake --install build --prefix {{PREFIX}}
+
+requirements:
+  build:
+    - { { compiler('c') } }
+    - { { compiler('cxx') } }
+  host:
+    - cmake
+    - ninja
+    - libgdal
+    - libsimplerasters
+  run:
+    - libgdal
+    - libsimplerasters
+
+about:
+  home: https://github.com/JanCaha/cpp-viewshed-library
+  license: MIT
+  summary: "C++ Viewshed library based on GDAL and Qt"
+
+extra:
+  recipe-maintainers:
+    - JanCaha
+  channels:
+    - conda-forge