diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
deleted file mode 100644
index 35da9780a36672701b0fb28b65535e9a0045d1bd..0000000000000000000000000000000000000000
--- a/.gitlab-ci.yml
+++ /dev/null
@@ -1,125 +0,0 @@
-variables:
-  RUN:
-    value: "all"
-    description: "The tests that should run. Possible values: ubuntu, win-msvc, win-mingw, mac, all."
-  GIT_DEPTH: 15
-
-stages:
-  - build
-  - deploy
-
-# build_ubuntu_gcc:
-#   only:
-#     variables:
-#       - $RUN =~ /\bubuntu.*/i || $RUN =~ /\ball.*/i
-#   stage: build
-#   tags: 
-#     - ubuntu-gcc-cached
-#   variables:
-#     GIT_SUBMODULE_STRATEGY: recursive
-#   timeout: 15m
-#   retry: 1
-#   script:
-#     - mkdir debug
-#     - cd debug
-#     - cmake -DCMAKE_BUILD_TYPE=Debug ..
-#     - cmake --build . -j 4
-#   artifacts:
-#     name: "Documentation - $CI_PIPELINE_ID"
-#     paths:
-#       - doc/html
-#       - doc/latex
-#     expire_in: never
-
-# build_win10_msvc:
-#   only:
-#     variables:
-#       - $RUN =~ /\bwin-msvc.*/i || $RUN =~ /\ball.*/i
-#   stage: build
-#   tags: 
-#     - win10-msvc-cached
-#   variables:
-#     GIT_SUBMODULE_STRATEGY: recursive
-#   timeout: 15m
-#   retry: 0
-#   script:
-#     - cd 'C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\Tools\'
-#     - .\Launch-VsDevShell.ps1
-#     - cd $CI_PROJECT_DIR
-#     - mkdir debug
-#     - cd debug
-#     - cmake -DCMAKE_BUILD_TYPE=Debug ..
-#     - cmake --build . -j 4
-
-# build_win10_mingw:
-#   only:
-#     variables:
-#       - $RUN =~ /\bwin-mingw.*/i || $RUN =~ /\ball.*/i
-#   stage: build
-#   tags: 
-#     - win10-mingw-cached
-#   variables:
-#     GIT_SUBMODULE_STRATEGY: recursive
-#   timeout: 15m
-#   retry: 0
-#   script:
-#     - mkdir debug
-#     - cd debug
-#     - cmake --no-warn-unused-cli -DCMAKE_EXPORT_COMPILE_COMMANDS:BOOL=TRUE -DCMAKE_BUILD_TYPE:STRING=Debug -DCMAKE_C_COMPILER:FILEPATH=C:\msys64\mingw64\bin\x86_64-w64-mingw32-gcc.exe -DCMAKE_CXX_COMPILER:FILEPATH=C:\msys64\mingw64\bin\x86_64-w64-mingw32-g++.exe .. -G "Unix Makefiles"
-#     - cmake --build . -j 4
-
-# build_mac_clang:
-#   only:
-#     variables:
-#       - $RUN =~ /\bmac.*/i || $RUN =~ /\ball.*/i
-#   stage: build
-#   tags: 
-#     - catalina-clang-cached
-#   variables:
-#     GIT_SUBMODULE_STRATEGY: recursive
-#   timeout: 15m
-#   retry: 1
-#   script:
-#     - mkdir debug
-#     - cd debug
-#     - export LDFLAGS="-L/usr/local/opt/llvm/lib"
-#     - export CPPFLAGS="-I/usr/local/opt/llvm/include"
-#     - cmake -DCMAKE_C_COMPILER="/usr/local/opt/llvm/bin/clang" -DCMAKE_CXX_COMPILER="/usr/local/opt/llvm/bin/clang++" -DCMAKE_BUILD_TYPE=Debug ..
-#     - cmake --build . -j 4
-
-# deploy_doc_develop:
-#   only:
-#     variables:
-#       - $RUN =~ /\bubuntu.*/i || $RUN =~ /\ball.*/i
-#     refs:
-#       - develop
-#   stage: deploy
-#   needs: ["build_ubuntu_gcc"]
-#   dependencies: 
-#     - build_ubuntu_gcc
-#   tags: 
-#     - webserver
-#   variables:
-#     GIT_STRATEGY: none
-#   script:
-#     - rsync -avh doc/html/ /var/www/html/develop --delete
-#     - echo "Check it out at https://vkcv.de/develop"
-
-# deploy_doc_branch:
-#   only:
-#     variables:
-#       - $RUN =~ /\bubuntu.*/i || $RUN =~ /\ball.*/i
-#   except:
-#     refs:
-#       - develop
-#   stage: deploy
-#   needs: ["build_ubuntu_gcc"]
-#   dependencies: 
-#     - build_ubuntu_gcc
-#   tags: 
-#     - webserver
-#   variables:
-#     GIT_STRATEGY: none
-#   script:
-#     - rsync -avh  doc/html/ /var/www/html/branch/$CI_COMMIT_BRANCH --delete
-#     - echo "Check it out at https://vkcv.de/branch/$CI_COMMIT_BRANCH"
\ No newline at end of file