diff --git a/.github/workflows/alpine.yml b/.github/workflows/alpine.yml
deleted file mode 100644
index 9e5cc6b..0000000
--- a/.github/workflows/alpine.yml
+++ /dev/null
@@ -1,47 +0,0 @@
-name: Alpine Linux
-on:
-  - push
-  - pull_request
-
-jobs:
-  build:
-    name: Build on Alpine ${{ matrix.arch }}
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        arch:
-          - x86_64
-          - x86
-          - aarch64
-          - armv7
-          - ppc64le
-          - riscv64
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v7
-
-      - name: Install latest Alpine Linux for ${{ matrix.arch }}
-        uses: jirutka/setup-alpine@v1
-        with:
-          arch: ${{ matrix.arch }}
-          branch: ${{ matrix.arch == 'riscv64' && 'edge' || 'latest-stable' }}
-          cache-key: ${{ github.run_id }}
-          packages: >
-            build-base
-            cmake
-            g++
-            linux-headers
-            git
-            bash
-      - name: Prepare
-        run: |
-          cmake -DFASTFLOAT_TEST=ON -B build
-        shell: alpine.sh {0}
-      - name: Build
-        run: |
-          cmake --build build
-        shell: alpine.sh {0}
-      - name: Test
-        run: |
-          ctest --test-dir build -R basictest
-        shell: alpine.sh {0}
diff --git a/.github/workflows/msys2-clang.yml b/.github/workflows/msys2-clang.yml
deleted file mode 100644
index bc29a06..0000000
--- a/.github/workflows/msys2-clang.yml
+++ /dev/null
@@ -1,36 +0,0 @@
-name: MSYS2-CLANG-CI
-
-on: [push, pull_request]
-
-jobs:
-  windows-mingw:
-    name: ${{ matrix.msystem }}
-    runs-on: windows-latest
-    defaults:
-      run:
-        shell: msys2 {0}
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - msystem: "MINGW64"
-            install: mingw-w64-x86_64-libxml2 mingw-w64-x86_64-cmake mingw-w64-x86_64-ninja mingw-w64-x86_64-clang
-            type: Release
-    env:
-      CMAKE_GENERATOR: Ninja
-
-    steps:
-      - uses: actions/checkout@v7
-      - uses: msys2/setup-msys2@v2
-        with:
-          update: true
-          msystem: ${{ matrix.msystem }}
-          install: ${{ matrix.install }}
-      - name: Prepare build dir
-        run: mkdir build
-      - name: Configure
-        run: cd build && cmake -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_BUILD_TYPE=${{ matrix.type }} -DFASTFLOAT_TEST=ON ..
-      - name: Build
-        run: cmake --build build
-      - name: Run basic tests
-        run: cd build && ctest --output-on-failure -R basictest
diff --git a/.github/workflows/msys2.yml b/.github/workflows/msys2.yml
deleted file mode 100644
index 5aee072..0000000
--- a/.github/workflows/msys2.yml
+++ /dev/null
@@ -1,39 +0,0 @@
-name: MSYS2-CI
-
-on: [push, pull_request]
-
-jobs:
-  windows-mingw:
-    name: ${{ matrix.msystem }}
-    runs-on: windows-latest
-    defaults:
-      run:
-        shell: msys2 {0}
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - msystem: "MINGW64"
-            install: mingw-w64-x86_64-cmake mingw-w64-x86_64-ninja mingw-w64-x86_64-gcc
-            type: Release
-          - msystem: "MINGW64"
-            install: mingw-w64-x86_64-cmake mingw-w64-x86_64-ninja mingw-w64-x86_64-gcc
-            type: Debug
-    env:
-      CMAKE_GENERATOR: Ninja
-
-    steps:
-      - uses: actions/checkout@v7
-      - uses: msys2/setup-msys2@v2
-        with:
-          update: true
-          msystem: ${{ matrix.msystem }}
-          install: ${{ matrix.install }}
-      - name: Prepare build dir
-        run: mkdir build
-      - name: Configure
-        run: cd build && cmake -DCMAKE_BUILD_TYPE=${{ matrix.type }} -DFASTFLOAT_TEST=ON ..
-      - name: Build
-        run: cmake --build build
-      - name: Run basic tests
-        run: cd build && ctest --output-on-failure -R basictest