From efe1b855d0350f6a90f1f3036ccb19ca3a6454ad Mon Sep 17 00:00:00 2001
From: 0xdavinchee <0xdavinchee@gmail.com>
Date: Wed, 8 Nov 2023 07:29:35 +0200
Subject: [PATCH 1/2] handler.run-ethereum-contracts-script.yml

---
 .../handler.run-ethereum-contracts-script.yml        | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/handler.run-ethereum-contracts-script.yml b/.github/workflows/handler.run-ethereum-contracts-script.yml
index 16564474c2..b6571f914a 100644
--- a/.github/workflows/handler.run-ethereum-contracts-script.yml
+++ b/.github/workflows/handler.run-ethereum-contracts-script.yml
@@ -28,6 +28,10 @@ jobs:
   run-ethereum-contracts-script:
     runs-on: ubuntu-latest
 
+    defaults:
+      run:
+        shell: nix develop -c bash -xe {0}
+  
     env:
       RELEASE_VERSION: ${{ github.event.inputs.release_version }}
       RESOLVER_ADMIN_TYPE: ${{ github.event.inputs.admin_type }}
@@ -35,12 +39,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-
-      - name: Use Node.js 18.x
-        uses: actions/setup-node@v3
+  
+      - uses: cachix/install-nix-action@v19
         with:
-          node-version: 18.x
-          cache: "yarn"
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build
         run: |

From 708d5bb13bb3bde924237bb15aa0c64c45b57ddc Mon Sep 17 00:00:00 2001
From: 0xdavinchee <0xdavinchee@gmail.com>
Date: Wed, 8 Nov 2023 08:05:24 +0200
Subject: [PATCH 2/2] add nix to handler.deploy-to-testnets.yml

---
 .github/workflows/handler.deploy-to-testnets.yml | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/handler.deploy-to-testnets.yml b/.github/workflows/handler.deploy-to-testnets.yml
index bb20e32c38..43dd5c5b76 100644
--- a/.github/workflows/handler.deploy-to-testnets.yml
+++ b/.github/workflows/handler.deploy-to-testnets.yml
@@ -26,6 +26,10 @@ jobs:
       DEFAULT_MNEMONIC: ${{ secrets.BUILD_AGENT_MNEMONIC }}
       PROVIDER_URL_TEMPLATE: ${{ secrets.PROVIDER_URL_TEMPLATE }}
 
+    defaults:
+      run:
+        shell: nix develop -c bash -xe {0}
+  
     strategy:
       fail-fast: false
       matrix:
@@ -39,12 +43,10 @@ jobs:
         if: ${{ github.event.inputs.only_network != '' && github.event.inputs.only_network != matrix.network }}
         run: echo "DO_SKIP=1" >> "$GITHUB_ENV"
 
-      - name: Use Node.js 18.x
+      - uses: cachix/install-nix-action@v19
         if: env.DO_SKIP != 1
-        uses: actions/setup-node@v3
         with:
-          node-version: 18.x
-          cache: "yarn"
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build
         if: env.DO_SKIP != 1