update import

.gitmodules

@@ -22,3 +22,6 @@
 [submodule "lib/v3-periphery"]
 	path = lib/v3-periphery
 	url = https://github.com/ChrisiPK/v3-periphery
+[submodule "lib/dropper-util"]
+	path = lib/dropper-util
+	url = https://github.com/PartyDAO/dropper-util

script/Deploy.s.sol

@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: Unlicense
+pragma solidity ^0.8;
+
+import "forge-std/Script.sol";
+import "src/ERC20Airdropper.sol";
+
+contract DeployScript is Script {
+    function run() external {
+        vm.startBroadcast();
+        ERC20Airdropper airdropper = new ERC20Airdropper(
+            Dropper(address(0x2871e49a08AceE842C8F225bE7BFf9cC311b9F43))
+        );
+        console.log(address(airdropper));
+        vm.stopBroadcast();
+    }
+}

src/ERC20Airdropper.sol

@@ -1,9 +1,9 @@
 // SPDX-License-Identifier: MIT
 pragma solidity ^0.8;
 
-import {GovernableERC20} from "./GovernableERC20.sol";
-import {ERC20} from "openzeppelin-contracts/contracts/token/ERC20/ERC20.sol";
-import {Dropper} from "./vendor/Dropper.sol";
+import { GovernableERC20 } from "./GovernableERC20.sol";
+import { ERC20 } from "openzeppelin-contracts/contracts/token/ERC20/ERC20.sol";
+import { Dropper } from "dropper-util/src/Dropper.sol";
 
 contract ERC20Airdropper {
     struct TokenArgs {

test/ERC20Airdropper.t.sol

@@ -3,7 +3,6 @@ pragma solidity ^0.8;
 
 import "forge-std/Test.sol";
 import "src/ERC20Airdropper.sol";
-import "src/vendor/Dropper.sol";
 
 contract ERC20AirdropperTest is Test {
     event ERC20Created(
@@ -72,10 +71,7 @@ contract ERC20AirdropperTest is Test {
             dropArgs.expirationTimestamp
         );
 
-        (ERC20 token, uint256 dropId) = airdropper.createTokenAndAirdrop(
-            tokenArgs,
-            dropArgs
-        );
+        (ERC20 token, uint256 dropId) = airdropper.createTokenAndAirdrop(tokenArgs, dropArgs);
 
         assertEq(token.name(), tokenArgs.name);
         assertEq(token.symbol(), tokenArgs.symbol);
@@ -101,10 +97,7 @@ contract ERC20AirdropperTest is Test {
         assertEq(expirationRecipient, dropArgs.expirationRecipient);
 
         assertEq(token.balanceOf(address(dropper)), dropArgs.totalTokens);
-        assertEq(
-            token.balanceOf(address(this)),
-            tokenArgs.totalSupply - dropArgs.totalTokens
-        );
+        assertEq(token.balanceOf(address(this)), tokenArgs.totalSupply - dropArgs.totalTokens);
     }
 
     function testCreateTokenAndAirdrop_noRemainingBalance() public {