diff --git a/.github/actions/setup-nix/action.yml b/.github/actions/setup-nix/action.yml
index d705a5b69..c1c3e5bf1 100644
--- a/.github/actions/setup-nix/action.yml
+++ b/.github/actions/setup-nix/action.yml
@@ -9,6 +9,12 @@ runs:
     - name: Install nix
       uses: DeterminateSystems/determinate-nix-action@main
     - name: Use nix cache
-      uses: DeterminateSystems/magic-nix-cache-action@main
+      uses: nix-community/cache-nix-action@v7
       with:
-        use-flakehub: false
+        primary-key: nix-${{ runner.os }}-${{ github.job }}-${{ hashFiles('flake.nix', 'flake.lock') }}
+        restore-prefixes-first-match: nix-${{ runner.os }}-${{ github.job }}-
+        gc-max-store-size: 1G
+        purge: true
+        purge-prefixes: nix-${{ runner.os }}-${{ github.job }}-
+        purge-created: 0
+        purge-primary-key: never
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 3cd50ce6d..e9dde3148 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -27,12 +27,8 @@ jobs:
           # The toolchain must be specified manually, as this action ignores the rust-toolchain override
           # https://github.com/dtolnay/rust-toolchain?tab=readme-ov-file#inputs
           toolchain: ${{ matrix.rust }}
-      - name: "Install nix"
-        uses: DeterminateSystems/determinate-nix-action@main
-      - name: "Use nix cache"
-        uses: DeterminateSystems/magic-nix-cache-action@main
-        with:
-          use-flakehub: false
+      - name: Set up nix
+        uses: ./.github/actions/setup-nix
       - name: "Add nginxWithStream to PATH"
         run: |
           # This is necessary for payjoin-mailroom integration tests
@@ -49,12 +45,8 @@ jobs:
         uses: actions/checkout@v6
       - name: "Use cache"
         uses: Swatinem/rust-cache@v2
-      - name: "Install nix"
-        uses: DeterminateSystems/determinate-nix-action@main
-      - name: "Use nix cache"
-        uses: DeterminateSystems/magic-nix-cache-action@main
-        with:
-          use-flakehub: false
+      - name: Set up nix
+        uses: ./.github/actions/setup-nix
       - name: "Run code linting"
         run: nix develop -c ./contrib/lint.sh
       - name: "Run documentation linting"
@@ -77,12 +69,8 @@ jobs:
       - name: "Install toolchain"
         # rust-cache usage with stable Rust is most effective, as a cache is tied to the Rust version
         uses: dtolnay/rust-toolchain@stable
-      - name: "Install nix"
-        uses: DeterminateSystems/determinate-nix-action@main
-      - name: "Use nix cache"
-        uses: DeterminateSystems/magic-nix-cache-action@main
-        with:
-          use-flakehub: false
+      - name: Set up nix
+        uses: ./.github/actions/setup-nix
       - name: "Add nginxWithStream to PATH"
         run: |
           # This is necessary for payjoin-mailroom integration tests