diff --git a/.github/workflows/matrix-check.yml b/.github/workflows/matrix-check.yml
new file mode 100644
index 0000000..3ad967c
--- /dev/null
+++ b/.github/workflows/matrix-check.yml
@@ -0,0 +1,58 @@
+# name: Matrix-Check
+
+# on:
+#   push:
+#     branches: [main]
+#   pull_request:
+#     types: [opened, synchronize, reopened, ready_for_review]
+
+# jobs:
+#   matrix-check:
+#     strategy:
+#       fail-fast: false
+#       matrix:
+#         os:
+#           - ubuntu-latest
+#         ocaml-version:
+#           - 4.08.1
+#           - 4.13.1
+#           - 4.14.0
+#           - 5.0.0
+#         node-version:
+#           # - lts/fermium # v14 Maintenance LTS
+#           - lts/gallium # v16 Active LTS
+#           # - lts/hydrogen # v18 Active LTS
+
+#     if: github.event.pull_request.draft == false
+#     runs-on: ${{ matrix.os }}
+
+#     steps:
+#       - name: Checkout code
+#         uses: actions/checkout@v3
+#         with:
+#           submodules: recursive
+#           fetch-depth: 2
+
+#       - name: Use OCaml ${{ matrix.ocaml-version }}
+#         uses: ocaml/setup-ocaml@v2
+#         with:
+#           ocaml-compiler: ${{ matrix.ocaml-version }}
+
+#       - name: Cache OPAM switch
+#         id: cache-switch
+#         uses: actions/cache@v3
+#         with:
+#           path: _opam
+#           key: v1-${{ runner.os }}-${{ matrix.ocaml-version }}-opam-switch
+
+#       - name: Check OCaml version and workspace info
+#         run: ./scripts/ci_print_env.sh
+
+#       - name: Install dependencies
+#         run: opam install -y . --deps-only --with-test
+
+#       - name: Perform dune build
+#         run: opam exec -- dune build
+
+#       - name: Perform dune runtest
+#         run: opam exec -- dune runtest
diff --git a/.github/workflows/quick-check.yml b/.github/workflows/quick-check.yml
new file mode 100644
index 0000000..eb6a8c1
--- /dev/null
+++ b/.github/workflows/quick-check.yml
@@ -0,0 +1,43 @@
+name: Quick-Check
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+jobs:
+  quick-check:
+    strategy:
+      fail-fast: false
+      matrix:
+        ocaml-version:
+          - 4.13.1
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/kxcteam/ocaml-general:${{ matrix.ocaml-version }}
+    timeout-minutes: 25
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      # https://github.blog/2022-04-12-git-security-vulnerability-announced/
+      - name: Set safe directory
+        run: git config --global --add safe.directory $GITHUB_WORKSPACE
+
+      - name: Initialize submodules
+        run: git submodule update --init
+
+      - name: Check OCaml version and workspace info
+        run: ./scripts/ci_print_env.sh
+
+      - name: Install OPAM dependencies
+        run: |
+          opam install -y . --deps-only --with-test || (opam update && opam install -y . --deps-only --with-test)
+
+      - name: Perform dune build
+        run: opam exec -- dune build
+
+      - name: Perform dune runtest
+        run: opam exec -- dune runtest
diff --git a/dune-project b/dune-project
index b984117..a7525f8 100644
--- a/dune-project
+++ b/dune-project
@@ -16,6 +16,10 @@
  (synopsis "KXC maintained common utilities")
  (description "Common OCaml utilities maintained by Kotoi-Xie Consultancy")
  (depends
+  (ppx_optcomp :build)
+  (ppx_deriving :build)
+
   (alcotest :with-test)
   (qtest :with-test)
+
   (ocaml (>= 4.11.0))))
diff --git a/jsoo/unit_test/dune b/jsoo/unit_test/dune
index ed9887c..e2e94b7 100644
--- a/jsoo/unit_test/dune
+++ b/jsoo/unit_test/dune
@@ -1,5 +1,6 @@
 (executables
  (names jsoo_unit_tests)
+ (optional)
  (libraries
    alcotest qcheck
    kxclib kxclib_jsoo
diff --git a/kxclib.opam b/kxclib.opam
index 49e7cca..12304eb 100644
--- a/kxclib.opam
+++ b/kxclib.opam
@@ -10,6 +10,8 @@ homepage: "https://github.com/kxcteam/kxclib-ocaml"
 bug-reports: "https://github.com/kxcteam/kxclib-ocaml/issues"
 depends: [
   "dune" {>= "3.0"}
+  "ppx_optcomp" {build}
+  "ppx_deriving" {build}
   "alcotest" {with-test}
   "qtest" {with-test}
   "ocaml" {>= "4.11.0"}
diff --git a/scripts/ci_print_env.sh b/scripts/ci_print_env.sh
new file mode 100755
index 0000000..7d852ab
--- /dev/null
+++ b/scripts/ci_print_env.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+echo ">>> uname -a"
+uname -a
+
+echo && echo ">>> OCaml --version"
+opam exec -- ocamlc --version
+
+echo && echo ">>> git status"
+git show HEAD^..HEAD --stat || git show HEAD --stat
+
+echo && echo ">>> git ls-files"
+git ls-files