diff --git a/.github/workflows/integrate.yaml b/.github/workflows/integrate.yaml
index f2476c9..6f32452 100644
--- a/.github/workflows/integrate.yaml
+++ b/.github/workflows/integrate.yaml
@@ -17,56 +17,22 @@ on:
 jobs:
   check-formatting:
     runs-on: ubuntu-latest
+    uses: ./prepare-nix.yml
     steps:
-      - uses: actions/checkout@v2.4.0
-      - uses: cachix/install-nix-action@v16
-        name: Set up Nix and IOHK caches
-        with:
-          nix_path: nixpkgs=channel:nixos-unstable
-          extra_nix_config: |
-            trusted-public-keys = hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ= iohk.cachix.org-1:DpRUyj7h7V830dp/i6Nti+NEO2/nhblbov/8MW7Rqoo= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
-            substituters = https://hydra.iohk.io https://iohk.cachix.org https://cache.nixos.org/
-            experimental-features = nix-command flakes
-      - uses: cachix/cachix-action@v10
-        with:
-          name: mlabs
-          authToken: ${{ secrets.CACHIX_KEY }}
-
       - run: ./.github/format.sh
         name: Run fourmolu
 
   run-linter:
     runs-on: ubuntu-latest
+    uses: ./prepare-nix.yml
     steps:
-      - uses: actions/checkout@v2.4.0
-      - uses: cachix/install-nix-action@v16
-        name: Set up Nix and IOHK caches
-        with:
-          nix_path: nixpkgs=channel:nixos-unstable
-          extra_nix_config: |
-            trusted-public-keys = hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ= iohk.cachix.org-1:DpRUyj7h7V830dp/i6Nti+NEO2/nhblbov/8MW7Rqoo= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
-            substituters = https://hydra.iohk.io https://iohk.cachix.org https://cache.nixos.org/
-            experimental-features = nix-command flakes
-
       - run: nix run nixpkgs#hlint -- $(git ls-tree -r HEAD --full-tree --name-only | grep -E '.*\.hs')
         name: Run hlint
 
   check-build:
     runs-on: ubuntu-latest
+    uses: ./prepare-nix.yml
     steps:
-      - uses: actions/checkout@v2.4.0
-      - uses: cachix/install-nix-action@v16
-        name: Set up Nix and IOHK caches
-        with:
-          nix_path: nixpkgs=channel:nixos-unstable
-          extra_nix_config: |
-            trusted-public-keys = hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ= iohk.cachix.org-1:DpRUyj7h7V830dp/i6Nti+NEO2/nhblbov/8MW7Rqoo= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
-            substituters = https://hydra.iohk.io https://iohk.cachix.org https://cache.nixos.org/
-            experimental-features = nix-command flakes
-      - uses: cachix/cachix-action@v10
-        with:
-          name: mlabs
-          authToken: ${{ secrets.CACHIX_KEY }}
       - name: Add cabal folder to cache
         id: cabal
         uses: actions/cache@v2.1.4
diff --git a/.github/workflows/prepare-nix.yml b/.github/workflows/prepare-nix.yml
new file mode 100644
index 0000000..8921f28
--- /dev/null
+++ b/.github/workflows/prepare-nix.yml
@@ -0,0 +1,23 @@
+on:
+  workflow_call:
+    secrets:
+      CACHIX_KEY:
+        required: true
+
+jobs:
+  prepare_nix:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2.4.0
+      - uses: cachix/install-nix-action@v16
+        name: Set up Nix and IOHK caches
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+          extra_nix_config: |
+            trusted-public-keys = hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ= iohk.cachix.org-1:DpRUyj7h7V830dp/i6Nti+NEO2/nhblbov/8MW7Rqoo= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
+            substituters = https://hydra.iohk.io https://iohk.cachix.org https://cache.nixos.org/
+            experimental-features = nix-command flakes
+      - uses: cachix/cachix-action@v10
+        with:
+          name: mlabs
+          authToken: ${{ secrets.CACHIX_KEY }}