diff --git a/.ngit/act/workflows/rust_ci.yaml b/.ngit/act/workflows/rust_ci.yaml
index 5f9100a..e4974e1 100644
--- a/.ngit/act/workflows/rust_ci.yaml
+++ b/.ngit/act/workflows/rust_ci.yaml
@@ -22,6 +22,23 @@ jobs:
       - uses: cachix/install-nix-action@v31
         with:
           nix_path: nixpkgs=channel:nixos-unstable
+      - name: Restore Nix store cache
+        continue-on-error: true
+        uses: nix-community/cache-nix-action@v7
+        with:
+          primary-key: nix-${{ runner.os }}-${{ hashFiles('**/*.nix', 'flake.lock') }}
+          restore-prefixes-first-match: nix-${{ runner.os }}-
+      - name: Restore Rust build cache
+        continue-on-error: true
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/git
+            ~/.cargo/registry
+            target
+          key: rust-${{ runner.os }}-${{ hashFiles('**/Cargo.toml', 'Cargo.lock', 'flake.lock') }}
+          restore-keys: |
+            rust-${{ runner.os }}-
       # The suite must be hermetic with respect to ambient git configuration,
       # so CI always runs it under a deliberately hostile global config: a
       # failing pre-commit hook delivered via both core.hooksPath and