diff --git a/.bazelrc b/.bazelrc
index 6683d3e..310e991 100644
--- a/.bazelrc
+++ b/.bazelrc
@@ -9,11 +9,25 @@ common --registry=https://raw.githubusercontent.com/eclipse-score/bazel_registry
 common --registry=https://bcr.bazel.build
 common --credential_helper=*.qnx.com=%workspace%/scripts/internal/qnx_creds.py
 
-build:build_qnx8 --platforms=@score_bazel_platforms//:arm64-qnx8_0
-build:build_qnx8 --extra_toolchains=@toolchains_qnx_qcc//:qcc_aarch64
-build:build_qnx8 --extra_toolchains=@score_toolchains_rust//toolchains/aarch64-unknown-qnx8_0:toolchain_aarch64_qnx8_0
-build:build_qnx8 --extra_toolchains=@score_toolchains_rust//toolchains/x86_64-unknown-linux-gnu:toolchain_x86_64_linux
-build:build_qnx8 --extra_toolchains=@toolchains_qnx_ifs//:ifs_x86_64
-build:build_qnx8 --extra_toolchains=@toolchains_qnx_ifs//:ifs_aarch64
-
-common --extra_toolchains=@gcc_toolchain//:host_gcc_12
+# Ferrocene must be common compiler for HOST. To ensure metadata compatibility for proc macro crates!
+build:_common --extra_toolchains=@score_toolchains_rust//toolchains/ferrocene:ferrocene_x86_64_unknown_linux_gnu
+
+build:arm64-qnx --config=_common
+build:arm64-qnx --platforms=@score_bazel_platforms//:aarch64-qnx-sdp_8.0.0-posix
+build:arm64-qnx --extra_toolchains=@score_qcc_aarch64_toolchain//:aarch64-qnx-sdp_8.0.0-posix
+build:arm64-qnx --extra_toolchains=@score_toolchains_rust//toolchains/ferrocene:ferrocene_aarch64_unknown_nto_qnx800
+
+build:x86_64-qnx --config=_common
+build:x86_64-qnx --platforms=@score_bazel_platforms//:x86_64-qnx-sdp_8.0.0-posix
+build:x86_64-qnx --extra_toolchains=@score_qcc_x86_64_toolchain//:x86_64-qnx-sdp_8.0.0-posix
+build:x86_64-qnx --extra_toolchains=@score_toolchains_rust//toolchains/ferrocene:ferrocene_x86_64_pc_nto_qnx800
+
+# TODO arm64 when rust support is there
+
+build:x86_64-linux --config=_common
+build:x86_64-linux --platforms=@score_bazel_platforms//:x86_64-linux-gcc_12.2.0-posix
+build:x86_64-linux --extra_toolchains=@score_gcc_x86_64_toolchain//:x86_64-linux-gcc_12.2.0-posix
+build:x86_64-linux --extra_toolchains=@score_toolchains_rust//toolchains/ferrocene:ferrocene_x86_64_unknown_linux_gnu
+
+# to be removed
+build:build_qnx8 --config=arm64-qnx
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 08cd040..7590ab5 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -55,4 +55,4 @@ jobs:
 
       - name: Build with Bazel
         run: |
-          bazel build //...
+          bazel build --config x86_64-linux //...
diff --git a/.github/workflows/build_qnx8.yml b/.github/workflows/build_qnx8.yml
index fbadd94..66b578c 100644
--- a/.github/workflows/build_qnx8.yml
+++ b/.github/workflows/build_qnx8.yml
@@ -18,14 +18,28 @@ on:
   merge_group:
     types: [checks_requested]
 jobs:
-  qnx-build:
+  qnx-build-arm64:
     uses: eclipse-score/cicd-workflows/.github/workflows/qnx-build.yml@main
     permissions:
       contents: read
       pull-requests: read
     with:
       bazel-target: '//src/...'
-      bazel-config: 'build_qnx8'
+      bazel-config: 'arm64-qnx8'
+      credential-helper: 'scripts/internal/qnx_creds.py'
+      environment-name: 'workflow-approval'
+    secrets:
+      score-qnx-license: ${{ secrets.SCORE_QNX_LICENSE }}
+      score-qnx-user: ${{ secrets.SCORE_QNX_USER }}
+      score-qnx-password: ${{ secrets.SCORE_QNX_PASSWORD }}
+  qnx-build-x86_64:
+    uses: eclipse-score/cicd-workflows/.github/workflows/qnx-build.yml@main
+    permissions:
+      contents: read
+      pull-requests: read
+    with:
+      bazel-target: '//src/...'
+      bazel-config: 'x86_64-qnx8'
       credential-helper: 'scripts/internal/qnx_creds.py'
       environment-name: 'workflow-approval'
     secrets:
diff --git a/.github/workflows/component_integration_tests_bazel.yml b/.github/workflows/component_integration_tests_bazel.yml
index 77704cf..a7ddee2 100644
--- a/.github/workflows/component_integration_tests_bazel.yml
+++ b/.github/workflows/component_integration_tests_bazel.yml
@@ -61,16 +61,16 @@ jobs:
 
       - name: Build Test Scenarios with Bazel
         run: |
-          bazel build //tests/test_scenarios/rust:test_scenarios
+          bazel build --config x86_64-linux //tests/test_scenarios/rust:test_scenarios
 
       - name: Build Test Scenarios with Bazel (PR)
         if: github.event_name == 'pull_request' || github.event_name == 'push'
         run: |
-          bazel test //tests/test_cases:cit
+          bazel test --config x86_64-linux //tests/test_cases:cit
 
       - name: Build Test Scenarios with Bazel (Nightly)
         if: github.event_name == 'schedule'
         env:
           NIGHTLY: TRUE
         run: |
-          bazel test //tests/test_cases:cit_repeat --test_timeout=1200
+          bazel test --config x86_64-linux //tests/test_cases:cit_repeat --test_timeout=1200
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 2bef1ca..99fe639 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -55,4 +55,4 @@ jobs:
       - name: Run Tests via Bazel
         run: |
           echo "Running: bazel test //src/..."
-          bazel test //src/...
+          bazel test --config x86_64-linux //src/...
diff --git a/MODULE.bazel b/MODULE.bazel
index c2a4e20..125121c 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -20,13 +20,19 @@ module(
 bazel_dep(name = "rules_python", version = "1.4.1")
 bazel_dep(name = "bazel_skylib", version = "1.7.1")
 bazel_dep(name = "rules_rust", version = "0.61.0")
+git_override(
+    module_name = "rules_rust",
+    commit = "d655071dfc8783bbdad4e27db349abd221ba170c",
+    remote = "https://github.com/pawelrutkaq/rules_rust.git",  # To be fixed once rule_rust is in score bazel registry
+)
+
 bazel_dep(name = "rules_cc", version = "0.1.1")
 bazel_dep(name = "aspect_rules_lint", version = "1.0.3")
 bazel_dep(name = "buildifier_prebuilt", version = "7.3.1")
 bazel_dep(name = "platforms", version = "1.0.0")
 
 # S-CORE process rules
-bazel_dep(name = "score_bazel_platforms", version = "0.0.3")
+bazel_dep(name = "score_bazel_platforms", version = "0.0.4")
 bazel_dep(name = "score_docs_as_code", version = "2.2.0")
 bazel_dep(name = "score_tooling", version = "1.0.4")
 
@@ -35,10 +41,8 @@ bazel_dep(name = "score_platform", version = "0.4.2", dev_dependency = True)  #
 bazel_dep(name = "score_virtualization", version = "0.0.1", dev_dependency = True)
 
 # Toolchains and extensions
-bazel_dep(name = "score_toolchains_gcc", version = "0.5", dev_dependency = True)
-bazel_dep(name = "score_toolchains_qnx", version = "0.0.6", dev_dependency = True)
-bazel_dep(name = "rust_qnx8_toolchain", version = "1.2.0", dev_dependency = True)
-bazel_dep(name = "score_toolchains_rust", version = "0.1.1", dev_dependency = True)
+bazel_dep(name = "score_bazel_cpp_toolchains", version = "0.2.2", dev_dependency = True)
+bazel_dep(name = "score_toolchains_rust", version = "0.4.0", dev_dependency = True)
 
 # Others
 bazel_dep(name = "custom_qemu", version = "1.0.0", dev_dependency = True)
@@ -54,20 +58,6 @@ git_override(
     remote = "https://github.com/qorix-group/score_virtualization.git",
 )
 
-git_override(
-    module_name = "score_toolchains_rust",
-    commit = "bcf8e5364f72cf136ec81960350a82e2b5c45449",
-    remote = "https://github.com/eclipse-score/toolchains_rust.git",
-)
-
-archive_override(
-    module_name = "rust_qnx8_toolchain",
-    strip_prefix = "qnx8",
-    urls = [
-        "https://github.com/qorix-group/rust-lang-qnx8/releases/download/1.2.0/qnx8_rust_toolchain.tar.gz",
-    ],
-)
-
 archive_override(
     module_name = "custom_qemu",
     integrity = "sha256-3V2d+p7nP0tsbrVWOPYUSJogLNal43CIAHEto6Vjdfg=",
@@ -77,21 +67,43 @@ archive_override(
     ],
 )
 
-# Extensions
-
-gcc = use_extension("@score_toolchains_gcc//extentions:gcc.bzl", "gcc", dev_dependency = True)
+gcc = use_extension("@score_bazel_cpp_toolchains//extensions:gcc.bzl", "gcc", dev_dependency = True)
 gcc.toolchain(
-    sha256 = "457f5f20f57528033cb840d708b507050d711ae93e009388847e113b11bf3600",
-    strip_prefix = "x86_64-unknown-linux-gnu",
-    url = "https://github.com/eclipse-score/toolchains_gcc_packages/releases/download/0.0.1/x86_64-unknown-linux-gnu_gcc12.tar.gz",
+    name = "score_gcc_x86_64_toolchain",
+    target_cpu = "x86_64",
+    target_os = "linux",
+    use_default_package = True,
+    version = "12.2.0",
 )
-use_repo(gcc, "gcc_toolchain", "gcc_toolchain_gcc")
-
-toolchains_qnx = use_extension("@score_toolchains_qnx//:extensions.bzl", "toolchains_qnx", dev_dependency = True)
-toolchains_qnx.sdp(
-    sha256 = "f2e0cb21c6baddbcb65f6a70610ce498e7685de8ea2e0f1648f01b327f6bac63",
-    strip_prefix = "installation",
-    url = "https://www.qnx.com/download/download/79858/installation.tgz",
+gcc.toolchain(
+    name = "score_gcc_aarch64_toolchain",
+    target_cpu = "aarch64",
+    target_os = "linux",
+    use_default_package = True,
+    version = "12.2.0",
+)
+gcc.toolchain(
+    name = "score_qcc_x86_64_toolchain",
+    sdp_version = "8.0.0",
+    target_cpu = "x86_64",
+    target_os = "qnx",
+    use_default_package = True,
+    version = "12.2.0",
+)
+gcc.toolchain(
+    name = "score_qcc_aarch64_toolchain",
+    sdp_version = "8.0.0",
+    target_cpu = "aarch64",
+    target_os = "qnx",
+    use_default_package = True,
+    version = "12.2.0",
+)
+use_repo(
+    gcc,
+    "score_gcc_aarch64_toolchain",
+    "score_gcc_x86_64_toolchain",
+    "score_qcc_aarch64_toolchain",
+    "score_qcc_x86_64_toolchain",
 )
 
 PYTHON_VERSION = "3.12"
@@ -113,9 +125,5 @@ use_repo(python)
 
 use_repo(pip, "pip_score_venv_test")
 
-use_repo(toolchains_qnx, "toolchains_qnx_sdp")
-use_repo(toolchains_qnx, "toolchains_qnx_qcc")
-use_repo(toolchains_qnx, "toolchains_qnx_ifs")
-
 # S-CORE crates
-bazel_dep(name = "score_crates", version = "0.0.5")
+bazel_dep(name = "score_crates", version = "0.0.7")