diff --git a/.github/workflows/rainix.yaml b/.github/workflows/rainix.yaml
index 188d09d9..8515a032 100644
--- a/.github/workflows/rainix.yaml
+++ b/.github/workflows/rainix.yaml
@@ -51,6 +51,11 @@ jobs:
         env:
           ETH_RPC_URL: ${{ secrets.CI_DEPLOY_SEPOLIA_RPC_URL || vars.CI_DEPLOY_SEPOLIA_RPC_URL }}
           CI_FORK_ETH_RPC_URL: ${{ secrets.RPC_URL_ETHEREUM_FORK || vars.RPC_URL_ETHEREUM_FORK || '' }}
+          CI_FORK_ARB_RPC_URL: ${{ secrets.CI_FORK_ARB_RPC_URL || vars.CI_FORK_ARB_RPC_URL || '' }}
+          CI_FORK_BASE_RPC_URL: ${{ secrets.CI_FORK_BASE_RPC_URL || vars.CI_FORK_BASE_RPC_URL || '' }}
+          CI_FORK_BASE_SEPOLIA_RPC_URL: ${{ secrets.CI_FORK_BASE_SEPOLIA_RPC_URL || vars.CI_FORK_BASE_SEPOLIA_RPC_URL || '' }}
+          CI_FORK_FLARE_RPC_URL: ${{ secrets.CI_FORK_FLARE_RPC_URL || vars.CI_FORK_FLARE_RPC_URL || '' }}
+          CI_FORK_POLYGON_RPC_URL: ${{ secrets.CI_FORK_POLYGON_RPC_URL || vars.CI_FORK_POLYGON_RPC_URL || '' }}
           ETHERSCAN_API_KEY: ${{ secrets.EXPLORER_VERIFICATION_KEY }}
         run: nix develop -c ${{ matrix.task }}
 
diff --git a/test/lib/deploy/LibMetaBoardDeploy.t.sol b/test/lib/deploy/LibMetaBoardDeploy.t.sol
index 28b73040..e64ba24f 100644
--- a/test/lib/deploy/LibMetaBoardDeploy.t.sol
+++ b/test/lib/deploy/LibMetaBoardDeploy.t.sol
@@ -24,4 +24,35 @@ contract LibMetaBoardDeployTest is Test {
 
         assertEq(address(metaBoard).codehash, LibMetaBoardDeploy.METABOARD_DEPLOYED_CODEHASH);
     }
+
+    function checkProdDeployment(string memory envVar) internal {
+        vm.createSelectFork(vm.envString(envVar));
+        address deployed = LibMetaBoardDeploy.METABOARD_DEPLOYED_ADDRESS;
+        assertTrue(deployed.code.length > 0, string.concat("MetaBoard not deployed: ", envVar));
+        assertEq(
+            deployed.codehash,
+            LibMetaBoardDeploy.METABOARD_DEPLOYED_CODEHASH,
+            string.concat("MetaBoard codehash mismatch: ", envVar)
+        );
+    }
+
+    function testProdDeployArbitrum() external {
+        checkProdDeployment("CI_FORK_ARB_RPC_URL");
+    }
+
+    function testProdDeployBase() external {
+        checkProdDeployment("CI_FORK_BASE_RPC_URL");
+    }
+
+    function testProdDeployBaseSepolia() external {
+        checkProdDeployment("CI_FORK_BASE_SEPOLIA_RPC_URL");
+    }
+
+    function testProdDeployFlare() external {
+        checkProdDeployment("CI_FORK_FLARE_RPC_URL");
+    }
+
+    function testProdDeployPolygon() external {
+        checkProdDeployment("CI_FORK_POLYGON_RPC_URL");
+    }
 }