diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index 2f624e8..8d5be6b 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -12,14 +12,12 @@ jobs:
       - name: "Checkout Codebase"
         uses: "actions/checkout@v4"
 
-      - name: "Install nix"
-        uses: "cachix/install-nix-action@v27"
-        with:
-          nix_path: "nixpkgs=channel:nixos-24.05"
+      - name: "Install Nix"
+        uses: "DeterminateSystems/nix-installer-action@v16"
 
-      - name: "Use Magic Nix cache"
-        uses: "DeterminateSystems/magic-nix-cache-action@v7"
+      - name: "Use Nix Cache"
+        uses: "DeterminateSystems/magic-nix-cache-action@v8"
 
       - name: "Check, Test and Build"
         run: |
-          nix-shell --pure --run "cabal update --ignore-project && dev-test-build"
+          nix-shell --pure --run "cabal update --ignore-project && cabal dev-test-build"
diff --git a/README.md b/README.md
index ba2c415..74bc946 100644
--- a/README.md
+++ b/README.md
@@ -50,10 +50,22 @@ hpack &&
     cabal haddock -O0
 ```
 
-To test and build codebase in development environment, run:
+To run checks, tests and build the codebase in the development environment, run:
 
 ```sh
-dev-test-build
+cabal-dev-test-build
+```
+
+You can pass `-c` to clean the build artifacts first:
+
+```sh
+cabal-dev-test-build -c
+```
+
+As of Cabal 3.12, you can now run the above as an external `cabal` command:
+
+```sh
+cabal dev-test-build [-c]
 ```
 
 <!-- REFERENCES -->
diff --git a/default.nix b/default.nix
index b950431..5bfde38 100644
--- a/default.nix
+++ b/default.nix
@@ -67,7 +67,7 @@ let
 
   ## Prepare dev-test-build script:
   dev-test-build = pkgs.writeShellApplication {
-    name = "dev-test-build";
+    name = "cabal-dev-test-build";
     text = builtins.readFile ./nix/dev-test-build.sh;
     runtimeInputs = [ pkgs.bash pkgs.bc pkgs.moreutils ];
   };
diff --git a/nix/dev-test-build.sh b/nix/dev-test-build.sh
index 37c7885..80652b4 100644
--- a/nix/dev-test-build.sh
+++ b/nix/dev-test-build.sh
@@ -44,6 +44,16 @@ fi
 
 _clean=""
 
+## Check if we are an cabal external command:
+CABAL="${CABAL:-}"
+if [ -n "${CABAL}" ]; then
+    _cabal="${CABAL}"
+    shift
+else
+    _cabal="$(command -v cabal)"
+fi
+
+## Parse options:
 while getopts ":c" opt; do
     case ${opt} in
         c)
@@ -80,7 +90,7 @@ _print_success() {
 _clean() {
     _print_header "clean"
     _start=$(_get_now)
-    chronic -- cabal clean && chronic -- cabal v1-clean
+    chronic -- "${_cabal}" clean && chronic -- "${_cabal}" v1-clean
     _print_success "${_start}" "$(_get_now)"
 }
 
@@ -120,23 +130,23 @@ _hlint() {
 }
 
 _cabal_build() {
-    _print_header "cabal build (v$(cabal --numeric-version))"
+    _print_header "cabal build (v$("${_cabal}" --numeric-version))"
     _start=$(_get_now)
-    chronic -- cabal build -O0
+    chronic -- "${_cabal}" build -O0
     _print_success "${_start}" "$(_get_now)"
 }
 
 _cabal_run() {
-    _print_header "cabal run (v$(cabal --numeric-version))"
+    _print_header "cabal run (v$("${_cabal}" --numeric-version))"
     _start=$(_get_now)
-    chronic -- cabal run -O0 haskell-template-hebele -- --version
+    chronic -- "${_cabal}" run -O0 haskell-template-hebele -- --version
     _print_success "${_start}" "$(_get_now)"
 }
 
 _cabal_test() {
-    _print_header "cabal test (v$(cabal --numeric-version))"
+    _print_header "cabal test (v$("${_cabal}" --numeric-version))"
     _start=$(_get_now)
-    chronic -- cabal v1-test
+    chronic -- "${_cabal}" v1-test
     _print_success "${_start}" "$(_get_now)"
 }
 
@@ -147,10 +157,17 @@ _weeder() {
     _print_success "${_start}" "$(_get_now)"
 }
 
+_stan() {
+    _print_header "stan ($(stan --version | head -n 1 | cut -f 2 -d " "))"
+    _start=$(_get_now)
+    chronic -- stan --hiedir ./dist-newstyle
+    _print_success "${_start}" "$(_get_now)"
+}
+
 _cabal_haddock() {
-    _print_header "cabal haddock (v$(cabal --numeric-version))"
+    _print_header "cabal haddock (v$("${_cabal}" --numeric-version))"
     _start=$(_get_now)
-    chronic -- cabal haddock -O0 \
+    chronic -- "${_cabal}" haddock -O0 \
         --haddock-quickjump \
         --haddock-hyperlink-source \
         --haddock-html-location="https://hackage.haskell.org/package/\$pkg-\$version/docs"
@@ -169,6 +186,7 @@ _hlint
 _cabal_build
 _cabal_run
 _cabal_test
+_stan
 _weeder
 _cabal_haddock
 printf "Finished all in %ss\n" "$(_get_diff "${_scr_start}" "$(_get_now)")"