diff --git a/.github/workflows/c-gc.yml b/.github/workflows/c-gc.yml
deleted file mode 100644
index 2810e56..0000000
--- a/.github/workflows/c-gc.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-name: c-lang gc CI
-
-on: [pull_request, push]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-    
-    steps:
-    - uses: actions/checkout@v2
-    - name: make build-gc
-      run: make build-gc
-    - name: make check-gc
-      run: make check-gc
\ No newline at end of file
diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/cona-isa.yml
similarity index 55%
rename from .github/workflows/pythonpackage.yml
rename to .github/workflows/cona-isa.yml
index 80f6ee9..42a305e 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/cona-isa.yml
@@ -1,15 +1,43 @@
-name: Python package
+name: ConaIsa
 
-on: [pull_request, push]
+on: [pull_request]
 
 jobs:
-  build:
-
+  rustlang:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: build
+      run: make build-rustlang
+    - name: tests
+      run: make check-rustlang
+  gc:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: make build-gc
+      run: make build-gc
+    - name: make check-gc
+      run: make check-gc
+  gcc:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: make build-gcc
+      run: make build-gcc
+    - name: make check-gcc
+      run: make check-gcc
+  shell:
+    runs-on: ubuntu-latest
+    steps:    
+    - uses: actions/checkout@v2
+    - name: shellcheck
+      uses: azohra/shell-linter@v0.2.0
+  python:
     runs-on: ubuntu-latest
     strategy:
       matrix:
         python-version: [2.7, 3.5, 3.6, 3.7, 3.8]
-
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
@@ -30,4 +58,4 @@ jobs:
     - name: Test with pytest
       run: |
         pip install pytest
-        pytest
+        pytest
\ No newline at end of file
diff --git a/.github/workflows/cpp.yml b/.github/workflows/cpp.yml
deleted file mode 100644
index 427c967..0000000
--- a/.github/workflows/cpp.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-name: CPP GCC CI
-
-on: [pull_request, push]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-    
-    steps:
-    - uses: actions/checkout@v2
-    - name: make build-gcc
-      run: make build-gcc
-    - name: make check-gcc
-      run: make check-gcc
\ No newline at end of file
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
deleted file mode 100644
index 16eb713..0000000
--- a/.github/workflows/rust.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-name: Rust
-
-on: [pull_request, push]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Build
-      run: cargo build --verbose
-    - name: Tests
-      run: cargo test --verbose
diff --git a/.github/workflows/shellcheck.yml b/.github/workflows/shellcheck.yml
deleted file mode 100644
index e6ff68c..0000000
--- a/.github/workflows/shellcheck.yml
+++ /dev/null
@@ -1,11 +0,0 @@
-name: Shell/Bash lint
-
-on: [pull_request, push]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:    
-    - uses: actions/checkout@v2
-    - name: Shell Linter
-      uses: azohra/shell-linter@v0.2.0
\ No newline at end of file
diff --git a/Makefile b/Makefile
index a10918d..c0aae3c 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@ all:
 
 # FIXME: Build in '$repodir/build/build-rustlang' instead of '$repodir/target' for multilang support
 build-rustlang:
-	@ cargo build
+	@ cargo build --verbose
 
 build-gc:
 	@ # Make a build directory
@@ -22,7 +22,9 @@ build-gc:
 	@ [ ! -d build/target-gc ] && { mkdir build/build-gc || exit 1 ;}
 
 	@ # Compilation
-	@ [ ! -f build/build-gc ] && { gc src/bin/main.c -o build/build-gc/gc-zernit || exit 1 ;}
+	@ ## gc is not available on github -> Using GCC
+	@ 
+	@ [ ! -f build/build-gc/gc-zernit ] && { gcc src/bin/main.c -o build/build-gc/gc-zernit || exit 1 ;}
 	@ printf '%s\n' "Compilation of target for gc finished"
 
 # FIXME: Replace 'exit 1' with helpful messages