diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 90515a07c..3e620460d 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -4,10 +4,7 @@ on:
   push:
     branches:
       - 'main'
-      - 'release-'
-
     tags: '*'
-
     paths-ignore:
       - 'docs/**'
   pull_request:
@@ -16,92 +13,15 @@ on:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
-  # Cancel intermediate builds: only if it is a pull request build.
   cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
 
 jobs:
-  setup-matrix:
-    runs-on: ubuntu-latest
-    outputs:
-      groups: ${{ steps.mk.outputs.groups }}
-      version: ${{ steps.mk.outputs.version }}
-      os: ${{ steps.mk.outputs.os }}
-    steps:
-      - uses: actions/checkout@v6
-      - id: mk
-        shell: bash
-        run: |
-          # Auto-discover test groups from all subdirectory names.
-          groups=$(find test -mindepth 1 -maxdepth 1 -type d \
-            | xargs -I{} basename {} | sort \
-            | jq -R -s -c '[split("\n")[] | select(length > 0)]')
-
-          echo "groups=${groups}" >> "$GITHUB_OUTPUT"
-
-          # Draft PR: only run ubuntu-latest + version=1
-          if [[ "${{ github.event_name }}" == "pull_request" && "${{ github.event.pull_request.draft }}" == "true" ]]; then
-            echo 'version=["1"]' >> "$GITHUB_OUTPUT"
-            echo 'os=["ubuntu-latest"]' >> "$GITHUB_OUTPUT"
-          else
-            echo 'version=["lts","1"]' >> "$GITHUB_OUTPUT"
-            echo 'os=["ubuntu-latest","macOS-latest","windows-latest"]' >> "$GITHUB_OUTPUT"
-          fi
-
-  test:
-    name: "Tests (${{ matrix.group }}, ${{ matrix.os }}, Julia ${{ matrix.version }})"
-    needs: setup-matrix
-    strategy:
-      fail-fast: false
-      matrix:
-        version: ${{ fromJSON(needs.setup-matrix.outputs.version) }}
-        os: ${{ fromJSON(needs.setup-matrix.outputs.os) }}
-        group: ${{ fromJSON(needs.setup-matrix.outputs.groups) }}
-    runs-on: ${{ matrix.os }}
-    timeout-minutes: 120
-    steps:
-      - uses: actions/checkout@v6
-      - uses: julia-actions/setup-julia@v3
-        with:
-          version: ${{ matrix.version }}
-      - uses: julia-actions/cache@v3
-      - uses: julia-actions/julia-buildpkg@v1
-      - uses: julia-actions/julia-runtest@v1
-        with:
-          test_args: '${{ matrix.group }}${{ github.event.pull_request.draft == true && '' --fast'' || '''' }}'
-        env:
-          JULIA_NUM_THREADS: "4"
-      - uses: julia-actions/julia-processcoverage@v1
-        with:
-          directories: 'src,ext'
-      - uses: codecov/codecov-action@v6
-        with:
-          files: lcov.info
-          token: ${{ secrets.CODECOV_TOKEN }}
-          fail_ci_if_error: false
-
-  # test-nightly:
-  #   name: "Tests (${{ matrix.group }}, ${{ matrix.os }}, Julia nightly)"
-  #   needs: [setup-matrix, test]
-  #   if: github.event.pull_request.draft != true
-  #   strategy:
-  #     fail-fast: false
-  #     matrix:
-  #       version:
-  #         - 'nightly'
-  #       group: ${{ fromJSON(needs.setup-matrix.outputs.groups) }}
-  #       os:
-  #         - ubuntu-latest
-  #         - macOS-latest
-  #         - windows-latest
-  #   runs-on: ${{ matrix.os }}
-  #   timeout-minutes: 120
-  #   steps:
-  #     - uses: actions/checkout@v6
-  #     - uses: julia-actions/setup-julia@v3
-  #       with:
-  #         version: ${{ matrix.version }}
-  #     - uses: julia-actions/cache@v3
-  #     - uses: julia-actions/julia-buildpkg@v1
-  #     - uses: julia-actions/julia-runtest@v1
-  #       with:
-  #         test_args: '${{ matrix.group }}'
+  tests:
+    name: "Tests"
+    uses: "QuantumKitHub/QuantumKitHubActions/.github/workflows/TestGroups.yml@main"
+    with:
+      fast: "${{ github.event.pull_request.draft == true }}"
+      exclude: '["cuda", "amd"]'
+      timeout-minutes: 120
+    secrets:
+      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
diff --git a/.github/workflows/CompatCheck.yml b/.github/workflows/CompatCheck.yml
index eaafae6b5..e9956217a 100644
--- a/.github/workflows/CompatCheck.yml
+++ b/.github/workflows/CompatCheck.yml
@@ -14,6 +14,9 @@ on:
 
   pull_request:
     types: [opened, synchronize, reopened, ready_for_review, converted_to_draft]
+    paths:
+      - 'Project.toml'
+      - 'test/Project.toml'
   workflow_dispatch:
 
 concurrency:
diff --git a/test/runtests.jl b/test/runtests.jl
index af49ce2f8..a7d2e2373 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -26,18 +26,19 @@ if (Sys.isapple() && get(ENV, "CI", "false") == "true") || !isempty(VERSION.prer
     filter!(!startswith("mooncake") ∘ first, testsuite)
 end
 
+args = parse_args(ARGS; custom = ["fast"])
 # --fast: skip AD tests and inject fast_tests=true into each worker sandbox
-fast = "--fast" in ARGS
-filtered_args = filter(!=("--fast"), ARGS)
-# if fast
-#     filter!(!startswith("chainrules") ∘ first, testsuite)
-#     filter!(!startswith("mooncake") ∘ first, testsuite)
-# end
+fast = !isnothing(args.custom["fast"])
+
 setup_path = joinpath(@__DIR__, "setup.jl")
-init_code = quote
+const init_worker_code = quote
     const fast_tests = $fast
     include($setup_path)
     using .TestSetup
 end
+const init_code = quote
+    using ..TestSetup
+    const fast_tests = $fast
+end
 
-ParallelTestRunner.runtests(TensorKit, filtered_args; testsuite, init_code)
+ParallelTestRunner.runtests(TensorKit, args; init_worker_code, init_code)