diff --git a/.github/scripts/generate_job_matrix.py b/.github/scripts/generate_job_matrix.py
index a610921..594255f 100755
--- a/.github/scripts/generate_job_matrix.py
+++ b/.github/scripts/generate_job_matrix.py
@@ -2,26 +2,12 @@
 
 examples = [
     "counter",
-    "picosoc",
-    "litex",
-    "litex_linux",
-    "button_controller",
-    "pulse_width_led",
-    "timer",
-    "hello-a"
 ]
 
 jobs = []
 
 osvers = [
-    ("ubuntu", "xenial"),
-    ("ubuntu", "bionic"),
-    ("ubuntu", "focal"),
     ("centos", "7"),
-    ("centos", "8"),
-    ("debian", "buster"),
-    ("debian", "bullseye"),
-    ("debian", "sid")
 ]
 
 for osver in osvers:
@@ -32,11 +18,4 @@ for osver in osvers:
         'example': example
     } for example in examples]
 
-jobs += [{
-    'fpga-fam': "eos-s3",
-    'os': osver[0],
-    'os-version': osver[1],
-    'example': "counter"
-} for osver in osvers]
-
 print('::set-output name=matrix::' + str(jobs))
diff --git a/.github/workflows/sphinx-tuttest.yml b/.github/workflows/sphinx-tuttest.yml
index de0c2ed..91526e1 100644
--- a/.github/workflows/sphinx-tuttest.yml
+++ b/.github/workflows/sphinx-tuttest.yml
@@ -57,11 +57,11 @@ jobs:
           wget https://github.com/antmicro/tuttest/releases/download/v0.2-beta/tuttest -O /usr/bin/tuttest
           chmod a+rx /usr/bin/tuttest
 
-      - name: Install SymbiFlow toolchain
-        run: bash .github/scripts/install-toolchain.sh ${{matrix.fpga-fam}} ${{matrix.os}}
+      #- name: Install SymbiFlow toolchain
+      #  run: bash .github/scripts/install-toolchain.sh ${{matrix.fpga-fam}} ${{matrix.os}}
 
-      - name: Build examples
-        run: bash .github/scripts/build-examples.sh ${{matrix.fpga-fam}} ${{matrix.example}}
+      #- name: Build examples
+      #  run: bash .github/scripts/build-examples.sh ${{matrix.fpga-fam}} ${{matrix.example}}
 
       - uses: actions/upload-artifact@v2
         with: