diff --git a/.github/actions/environment_clang.yaml b/.github/actions/environment_clang.yaml
index 6b2d3b3a0..71b36c372 100644
--- a/.github/actions/environment_clang.yaml
+++ b/.github/actions/environment_clang.yaml
@@ -2,6 +2,4 @@ name: modyn-ci-tools
 channels:
   - conda-forge
 dependencies:
-  - clang-18
-  - clang-tools
-  - clang-format-18
+  - cmake
diff --git a/.github/workflows/build_dependencies.yaml b/.github/workflows/build_dependencies.yaml
index ed5005471..ac06a177e 100644
--- a/.github/workflows/build_dependencies.yaml
+++ b/.github/workflows/build_dependencies.yaml
@@ -4,8 +4,8 @@ on:
   schedule:
     - cron: '0 0 1 * *'  # Run at midnight on the first of every month
   workflow_dispatch:
-  pull_request:
-    branches: main
+  # pull_request:
+  #   branches: main
 
 concurrency: 
   group: grpc-build
diff --git a/.github/workflows/workflow.yaml b/.github/workflows/workflow.yaml
index 0f1a338fb..6371dc83f 100644
--- a/.github/workflows/workflow.yaml
+++ b/.github/workflows/workflow.yaml
@@ -154,6 +154,7 @@ jobs:
         with:
           environment-file: .github/actions/environment_clang.yaml
           cache-environment: true
+          create-args: clang-18 clang-tools clang-format-18
 
       - name: Setup pre-built grpc binaries
         uses: actions/download-artifact@v4
@@ -192,8 +193,8 @@ jobs:
       matrix:
         build-type: [ Release, Debug ]
         compiler:
-          - { c: gcc, cxx: g++, version: 11 }
-          - { c: gcc, cxx: g++, version: 12 }
+          # - { c: gcc, cxx: g++, version: 11 }
+          # - { c: gcc, cxx: g++, version: 12 }
           - { c: clang, cxx: clang++, version: 14 }
           - { c: clang, cxx: clang++, version: 17, coverage: true }
         include:
@@ -214,18 +215,14 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Install ccache
-        run: |
-          sudo apt update
-          sudo apt install -y ccache
-
-      - name: Install clang version
-        if: ${{ matrix.compiler.version > 14 }}
-        uses: KyleMayes/install-llvm-action@v1
+      - name: Install clang environment
+        uses: mamba-org/setup-micromamba@v1
         with:
-          version: ${{ matrix.compiler.version }}.0
-          env: true
-      
+          environment-file: .github/actions/environment_clang.yaml
+          cache-environment: true
+          create-args: ccache clang=${{matrix.compiler.version}} libclang=${{matrix.compiler.version}} clang-tools=${{matrix.compiler.version}} 
+          # gcc_linux-64=${{matrix.compiler.version}} gxx_linux-64=${{matrix.compiler.version}}
+
       - name: Setup pre-built grpc binaries
         uses: actions/download-artifact@v4
         with: