diff --git a/.gitea/workflows/ci.yaml b/.gitea/workflows/ci.yaml
index a5a5f20..c7d9a0a 100644
--- a/.gitea/workflows/ci.yaml
+++ b/.gitea/workflows/ci.yaml
@@ -5,66 +5,25 @@ on: [push, pull_request]
 jobs:
   build_linux:
     runs-on: ubuntu-latest
-    defaults:
-      run:
-        shell: bash
-    # Use container with docker installed
-    container:
-      image: catthehacker/ubuntu:act-latest
-    strategy:
-      fail-fast: true
-      max-parallel: 4
-      matrix:
-        config:
-          - { name: g++15, image: fir.love.io:3005/amd64/gcc1511, cc: /usr/bin/gcc, cxx: /usr/bin/g++, build_type: Debug, cppstd: 17 }
-          - { name: g++15, image: fir.love.io:3005/amd64/gcc1511, cc: /usr/bin/gcc, cxx: /usr/bin/g++, build_type: Release, cppstd: 17 }
-          - { name: clang15, image: fir.love.io:3005/amd64/clang15, cc: /usr/bin/clang-15, cxx: /usr/bin/clang++-15, build_type: Debug, cppstd: 17 }
-          - { name: clang17, image: fir.love.io:3005/amd64/clang17, cc: /usr/bin/clang-17, cxx: /usr/bin/clang++-17, build_type: Debug, cppstd: 17 }
-          - { name: clang18, image: fir.love.io:3005/amd64/clang18, cc: /usr/bin/clang-18, cxx: /usr/bin/clang++-18, build_type: Debug, cppstd: 17 }
-          - { name: clang19, image: fir.love.io:3005/amd64/clang19, cc: /usr/bin/clang-19, cxx: /usr/bin/clang++-19, build_type: Debug, cppstd: 17 }
-          - { name: clang20, image: fir.love.io:3005/amd64/gcc1511, cc: /usr/bin/clang, cxx: /usr/bin/clang++, build_type: Debug, cppstd: 17 }
-          - { name: clang20, image: fir.love.io:3005/amd64/gcc1511, cc: /usr/bin/clang, cxx: /usr/bin/clang++, build_type: Release, cppstd: 17 }
-          - { name: asan, image: fir.love.io:3005/amd64/gcc1511, cc: /usr/bin/gcc, cxx: /usr/bin/g++, build_type: asan, cppstd: 17 }
-          - { name: tsan, image: fir.love.io:3005/amd64/gcc1511, cc: /usr/bin/gcc, cxx: /usr/bin/g++, build_type: tsan, cppstd: 17 }
-          - { name: ubsan, image: fir.love.io:3005/amd64/gcc1511, cc: /usr/bin/gcc, cxx: /usr/bin/g++, build_type: ubsan, cppstd: 17 }
-          - { name: g++9.4.0, image: fir.love.io:3005/amd64/gcc940, cc: /opt/gcc940/bin/gcc, cxx: /opt/gcc940/bin/g++, build_type: Debug, cppstd: 17 }
-          - { name: g++10.3.0, image: fir.love.io:3005/amd64/gcc1030, cc: /opt/gcc1030/bin/gcc, cxx: /opt/gcc1030/bin/g++, build_type: Debug, cppstd: 17 }
-          - { name: g++11.3.0, image: fir.love.io:3005/amd64/gcc1130, cc: /opt/gcc1130/bin/gcc, cxx: /opt/gcc1130/bin/g++, build_type: Debug, cppstd: 17 }
-          - { name: g++12.3.0, image: fir.love.io:3005/amd64/gcc1230, cc: /opt/gcc1230/bin/gcc, cxx: /opt/gcc1230/bin/g++, build_type: Debug, cppstd: 20 }
-          - { name: g++13.3.0, image: fir.love.io:3005/amd64/gcc1330, cc: /opt/gcc1330/bin/gcc, cxx: /opt/gcc1330/bin/g++, build_type: Debug, cppstd: 20 }
-          - { name: g++14.3.0, image: fir.love.io:3005/amd64/gcc1430, cc: /opt/gcc1430/bin/gcc, cxx: /opt/gcc1430/bin/g++, build_type: Debug, cppstd: 20 }
-
-    name: "${{ matrix.config.name}} (C++${{ matrix.config.cppstd }}, ${{ matrix.config.build_type }})"
     steps:
-      - uses: actions/checkout@v3
-      - name: Build
-        uses: https://github.com/addnab/docker-run-action@v3
-        with:
-          image: ${{ matrix.config.image }}
-          options: --rm --volumes-from=${{ env.JOB_CONTAINER_NAME }} --pull always -v /home/vcpkg:/home/vcpkg
-          run: |
-            cd ${{ gitea.workspace }}
-            export VCPKG_DEFAULT_BINARY_CACHE=/home/vcpkg
-            ./build.sh -cc=${{ matrix.config.cc }} --cxx=${{ matrix.config.cxx }} --vcpkg --cmake="-DCMAKE_BUILD_TYPE=${{ matrix.config.cppstd }} -DCMAKE_CXX_STD=${{ matrix.config.cppstd }} -DBUILD_EXAMPLES=ON -DBUILD_TESTS=ON"
+      - name: Checkout source
+        uses: actions/checkout@v4
 
-  results:
-    runs-on: ubuntu-latest
-    if: always()
-    needs: build_linux
-    steps:
-      - name: Report failure
-        if: failure()
-        uses: tsickert/discord-webhook@v5.4.0
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+        
+      - name: Build image
+        id: build
+        uses: docker/build-push-action@v5
         with:
-          webhook-url: ${{ secrets.WEBHOOK_URL }}
-          username: Gitea
-          avatar-url: https://about.gitea.com/gitea-text.svg
-          content: "Repo ${{ gitea.repository }} branch ${{ gitea.ref }} build :x:"
-      - name: Report success
-        if: success()
-        uses: tsickert/discord-webhook@v5.4.0
-        with:
-          webhook-url: ${{ secrets.WEBHOOK_URL }}
-          username: Gitea
-          avatar-url: https://about.gitea.com/gitea-text.svg
-          content: "Repo ${{ gitea.repository }} branch ${{ gitea.ref }} build :white_check_mark:"
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+          context: .
+          file: Dockerfile
+          # do not push yet
+          push: false
+          tags: |
+            ${{ github.repository }}:${{ github.sha }}
+            ${{ github.repository }}:${{ github.ref_name }}
+            ${{ github.repository }}:latest
+          build-args: |
+            # Add any build args here
+            # ARG_NAME=VALUE
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