diff --git a/contracts/contracts/ClrFund.sol b/contracts/contracts/ClrFund.sol
index 36fd7e85b..4b99f2c8c 100644
--- a/contracts/contracts/ClrFund.sol
+++ b/contracts/contracts/ClrFund.sol
@@ -6,15 +6,9 @@ import '@openzeppelin/contracts/token/ERC20/ERC20.sol';
 import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
 import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';
 
-// Import ownable from OpenZeppelin contracts
-
-import {MACI} from 'maci-contracts/contracts/MACI.sol';
-import {SnarkCommon} from 'maci-contracts/contracts/crypto/SnarkCommon.sol';
 import {SignUpGatekeeper} from "maci-contracts/contracts/gatekeepers/SignUpGatekeeper.sol";
 import {InitialVoiceCreditProxy} from "maci-contracts/contracts/initialVoiceCreditProxy/InitialVoiceCreditProxy.sol";
-import {Params} from 'maci-contracts/contracts/Params.sol';
 import {PollFactory} from 'maci-contracts/contracts/Poll.sol';
-import {DomainObjs} from 'maci-contracts/contracts/DomainObjs.sol';
 
 import './userRegistry/IUserRegistry.sol';
 import './recipientRegistry/IRecipientRegistry.sol';
@@ -22,7 +16,7 @@ import './MACIFactory.sol';
 import './FundingRound.sol';
 import './OwnableUpgradeable.sol';
 
-contract ClrFund is OwnableUpgradeable, SnarkCommon, Params, DomainObjs {
+contract ClrFund is OwnableUpgradeable, IPubKey, SnarkCommon {
   using EnumerableSet for EnumerableSet.AddressSet;
   using SafeERC20 for ERC20;
 
@@ -46,6 +40,19 @@ contract ClrFund is OwnableUpgradeable, SnarkCommon, Params, DomainObjs {
   event TokenChanged(address _token);
   event CoordinatorChanged(address _coordinator);
 
+  // errors
+  error FundingSourceAlreadyAdded();
+  error FundingSourceNotFound();
+  error AlreadyFinalized();
+  error NotFinalized();
+  error NotAuthorized();
+  error NoCurrentRound();
+  error NoCoordinator();
+  error NoToken();
+  error NoRecipientRegistry();
+  error NoUserRegistry();
+  error NotOwnerOfMaciFactory();
+
   function init(
     MACIFactory _maciFactory
   ) 
@@ -88,7 +95,9 @@ contract ClrFund is OwnableUpgradeable, SnarkCommon, Params, DomainObjs {
     onlyOwner
   {
     bool result = fundingSources.add(_source);
-    require(result, 'Factory: Funding source already added');
+    if (!result) {
+      revert FundingSourceAlreadyAdded();
+    }
     emit FundingSourceAdded(_source);
   }
 
@@ -101,7 +110,9 @@ contract ClrFund is OwnableUpgradeable, SnarkCommon, Params, DomainObjs {
     onlyOwner
   {
     bool result = fundingSources.remove(_source);
-    require(result, 'Factory: Funding source not found');
+    if (!result) {
+      revert FundingSourceNotFound();
+    }
     emit FundingSourceRemoved(_source);
   }
 
@@ -117,39 +128,55 @@ contract ClrFund is OwnableUpgradeable, SnarkCommon, Params, DomainObjs {
   }
 
   function setMaciParameters(
-    uint8 _messageTreeDepth,
-    uint8 _voteOptionTreeDepth
-    )
+    uint8 stateTreeDepth,
+    uint8 intStateTreeDepth,
+    uint8 messageTreeSubDepth,
+    uint8 messageTreeDepth,
+    uint8 voteOptionTreeDepth,
+    uint256 maxMessages,
+    uint256 maxVoteOptions,
+    uint256 messageBatchSize,
+    VerifyingKey calldata processVk,
+    VerifyingKey calldata tallyVk
+  )
     external
-    onlyOwner
+    onlyCoordinator
   {
     maciFactory.setMaciParameters(
-      _messageTreeDepth,
-      _voteOptionTreeDepth
+      stateTreeDepth,
+      intStateTreeDepth,
+      messageTreeSubDepth,
+      messageTreeDepth,
+      voteOptionTreeDepth,
+      maxMessages,
+      maxVoteOptions,
+      messageBatchSize,
+      processVk,
+      tallyVk
     );
   }
 
-  /**
+   /**
     * @dev Deploy new funding round.
     * @param duration The poll duration in seconds
-    * @param vkRegistry The VkRegistry contract address
     */
-  function deployNewRound(uint256 duration, address vkRegistry, address pollFactory, TreeDepths calldata treeDepths)
+  function deployNewRound(uint256 duration)
     external
     onlyOwner
+    requireToken
+    requireCoordinator
+    requireRecipientRegistry
+    requireUserRegistry
   {
-    require(maciFactory.owner() == address(this), 'Factory: MACI factory is not owned by FR factory');
-    require(address(userRegistry) != address(0), 'Factory: User registry is not set');
-    require(address(recipientRegistry) != address(0), 'Factory: Recipient registry is not set');
-    require(address(nativeToken) != address(0), 'Factory: Native token is not set');
-    require(coordinator != address(0), 'Factory: No coordinator');
+    if (maciFactory.owner() != address(this)) {
+      revert NotOwnerOfMaciFactory();
+    }
     FundingRound currentRound = getCurrentRound();
-    require(
-      address(currentRound) == address(0) || currentRound.isFinalized(),
-      'Factory: Current round is not finalized'
-    );
+    if (address(currentRound) != address(0) && !currentRound.isFinalized()) {
+      revert NotFinalized();
+    }
     // Make sure that the max number of recipients is set correctly
-    (uint256 maxMessages, uint256 maxVoteOptions) = maciFactory.maxValues();
+    (, uint256 maxVoteOptions) = maciFactory.maxValues();
     recipientRegistry.setMaxRecipients(maxVoteOptions);
     // Deploy funding round and MACI contracts
     FundingRound newRound = new FundingRound(
@@ -159,18 +186,16 @@ contract ClrFund is OwnableUpgradeable, SnarkCommon, Params, DomainObjs {
       coordinator
     );
     rounds.push(newRound);
+
     MACI maci = maciFactory.deployMaci(
       SignUpGatekeeper(newRound),
       InitialVoiceCreditProxy(newRound),
-      vkRegistry,
-      pollFactory,
-      address(nativeToken)
+      address(nativeToken),
+      duration,
+      coordinatorPubKey
     );
 
-    MaxValues memory maxValues = MaxValues(maxMessages, maxVoteOptions);
-    maci.deployPoll(duration, maxValues, treeDepths, coordinatorPubKey);
     newRound.setMaci(maci);
-
     emit RoundStarted(address(newRound));
   }
 
@@ -206,7 +231,8 @@ contract ClrFund is OwnableUpgradeable, SnarkCommon, Params, DomainObjs {
     onlyOwner
   {
     FundingRound currentRound = getCurrentRound();
-    require(address(currentRound) != address(0), 'Factory: Funding round has not been deployed');
+    requireCurrentRound(currentRound);
+
     ERC20 roundToken = currentRound.nativeToken();
     // Factory contract is the default funding source
     uint256 matchingPoolSize = roundToken.balanceOf(address(this));
@@ -235,8 +261,12 @@ contract ClrFund is OwnableUpgradeable, SnarkCommon, Params, DomainObjs {
     onlyOwner
   {
     FundingRound currentRound = getCurrentRound();
-    require(address(currentRound) != address(0), 'Factory: Funding round has not been deployed');
-    require(!currentRound.isFinalized(), 'Factory: Current round is finalized');
+    requireCurrentRound(currentRound);
+
+    if (currentRound.isFinalized()) {
+      revert AlreadyFinalized();
+    }
+
     currentRound.cancel();
     emit RoundFinalized(address(currentRound));
   }
@@ -287,7 +317,43 @@ contract ClrFund is OwnableUpgradeable, SnarkCommon, Params, DomainObjs {
   }
 
   modifier onlyCoordinator() {
-    require(msg.sender == coordinator, 'Factory: Sender is not the coordinator');
+    if (msg.sender != coordinator) {
+      revert NotAuthorized();
+    }
+    _;
+  }
+
+  function requireCurrentRound(FundingRound currentRound) private {
+    if (address(currentRound) == address(0)) {
+      revert NoCurrentRound();
+    }
+  }
+
+  modifier requireToken() {
+    if (address(nativeToken) == address(0)) {
+      revert NoToken();
+    }
+    _;
+  }
+
+  modifier requireCoordinator() {
+    if (coordinator == address(0)) {
+      revert NoCoordinator();
+    }
+    _;
+  }
+
+  modifier requireUserRegistry() {
+    if (address(userRegistry) == address(0)) {
+      revert NoUserRegistry();
+    }
+    _;
+  }
+
+  modifier requireRecipientRegistry() {
+    if (address(recipientRegistry) == address(0)) {
+      revert NoRecipientRegistry();
+    }
     _;
   }
 }
diff --git a/contracts/contracts/FundingRoundFactory.sol b/contracts/contracts/FundingRoundFactory.sol
index ad82c1f2f..9cc55ef64 100644
--- a/contracts/contracts/FundingRoundFactory.sol
+++ b/contracts/contracts/FundingRoundFactory.sol
@@ -8,21 +8,33 @@ import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
 import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';
 
 import {MACI} from 'maci-contracts/contracts/MACI.sol';
-import {SignUpGatekeeper} from "maci-contracts/contracts/gatekeepers/SignUpGatekeeper.sol";
-import {InitialVoiceCreditProxy} from "maci-contracts/contracts/initialVoiceCreditProxy/InitialVoiceCreditProxy.sol";
+import {SignUpGatekeeper} from 'maci-contracts/contracts/gatekeepers/SignUpGatekeeper.sol';
+import {InitialVoiceCreditProxy} from 'maci-contracts/contracts/initialVoiceCreditProxy/InitialVoiceCreditProxy.sol';
+import {IPubKey} from 'maci-contracts/contracts/DomainObjs.sol';
 import {SnarkCommon} from 'maci-contracts/contracts/crypto/SnarkCommon.sol';
-import {Params} from 'maci-contracts/contracts/Params.sol';
-import {DomainObjs} from 'maci-contracts/contracts/DomainObjs.sol';
 
 import './userRegistry/IUserRegistry.sol';
 import './recipientRegistry/IRecipientRegistry.sol';
 import './MACIFactory.sol';
 import './FundingRound.sol';
 
-contract FundingRoundFactory is Ownable, SnarkCommon, Params, DomainObjs {
+contract FundingRoundFactory is Ownable, IPubKey, SnarkCommon {
   using EnumerableSet for EnumerableSet.AddressSet;
   using SafeERC20 for ERC20;
 
+  // errors
+  error FundingSourceAlreadyAdded();
+  error FundingSourceNotFound();
+  error AlreadyFinalized();
+  error NotFinalized();
+  error NotAuthorized();
+  error NoCurrentRound();
+  error NoCoordinator();
+  error NoToken();
+  error NoRecipientRegistry();
+  error NoUserRegistry();
+  error NotOwnerOfMaciFactory();
+
   // State
   address public coordinator;
 
@@ -83,7 +95,9 @@ contract FundingRoundFactory is Ownable, SnarkCommon, Params, DomainObjs {
     onlyOwner
   {
     bool result = fundingSources.add(_source);
-    require(result, 'Factory: Funding source already added');
+    if (!result) {
+      revert FundingSourceAlreadyAdded();
+    }
     emit FundingSourceAdded(_source);
   }
 
@@ -96,7 +110,9 @@ contract FundingRoundFactory is Ownable, SnarkCommon, Params, DomainObjs {
     onlyOwner
   {
     bool result = fundingSources.remove(_source);
-    require(result, 'Factory: Funding source not found');
+    if (!result) {
+      revert FundingSourceNotFound();
+    }
     emit FundingSourceRemoved(_source);
   }
 
@@ -112,39 +128,55 @@ contract FundingRoundFactory is Ownable, SnarkCommon, Params, DomainObjs {
   }
 
   function setMaciParameters(
-    uint8 _messageTreeDepth,
-    uint8 _voteOptionTreeDepth
+    uint8 stateTreeDepth,
+    uint8 intStateTreeDepth,
+    uint8 messageTreeSubDepth,
+    uint8 messageTreeDepth,
+    uint8 voteOptionTreeDepth,
+    uint256 maxMessages,
+    uint256 maxVoteOptions,
+    uint256 messageBatchSize,
+    VerifyingKey calldata processVk,
+    VerifyingKey calldata tallyVk
   )
     external
-    onlyOwner
+    onlyCoordinator
   {
     maciFactory.setMaciParameters(
-      _messageTreeDepth,
-      _voteOptionTreeDepth
+      stateTreeDepth,
+      intStateTreeDepth,
+      messageTreeSubDepth,
+      messageTreeDepth,
+      voteOptionTreeDepth,
+      maxMessages,
+      maxVoteOptions,
+      messageBatchSize,
+      processVk,
+      tallyVk
     );
   }
 
   /**
     * @dev Deploy new funding round.
     * @param duration The poll duration in seconds
-    * @param vkRegistry The VkRegistry contract address
     */
-  function deployNewRound(uint256 duration, address vkRegistry, address pollFactory, TreeDepths calldata treeDepths)
+  function deployNewRound(uint256 duration)
     external
     onlyOwner
+    requireToken
+    requireCoordinator
+    requireRecipientRegistry
+    requireUserRegistry
   {
-    require(maciFactory.owner() == address(this), 'Factory: MACI factory is not owned by FR factory');
-    require(address(userRegistry) != address(0), 'Factory: User registry is not set');
-    require(address(recipientRegistry) != address(0), 'Factory: Recipient registry is not set');
-    require(address(nativeToken) != address(0), 'Factory: Native token is not set');
-    require(coordinator != address(0), 'Factory: No coordinator');
+    if (maciFactory.owner() != address(this)) {
+      revert NotOwnerOfMaciFactory();
+    }
     FundingRound currentRound = getCurrentRound();
-    require(
-      address(currentRound) == address(0) || currentRound.isFinalized(),
-      'Factory: Current round is not finalized'
-    );
+    if (address(currentRound) != address(0) && !currentRound.isFinalized()) {
+      revert NotFinalized();
+    }
     // Make sure that the max number of recipients is set correctly
-    (uint256 maxMessages, uint256 maxVoteOptions) = maciFactory.maxValues();
+    (, uint256 maxVoteOptions) = maciFactory.maxValues();
     recipientRegistry.setMaxRecipients(maxVoteOptions);
     // Deploy funding round and MACI contracts
     FundingRound newRound = new FundingRound(
@@ -158,14 +190,11 @@ contract FundingRoundFactory is Ownable, SnarkCommon, Params, DomainObjs {
     MACI maci = maciFactory.deployMaci(
       SignUpGatekeeper(newRound),
       InitialVoiceCreditProxy(newRound),
-      vkRegistry,
-      pollFactory,
-      address(nativeToken)
+      address(nativeToken),
+      duration,
+      coordinatorPubKey
     );
 
-    MaxValues memory maxValues = MaxValues(maxMessages, maxVoteOptions);
-    maci.deployPoll(duration, maxValues, treeDepths, coordinatorPubKey);
-
     newRound.setMaci(maci);
     emit RoundStarted(address(newRound));
   }
@@ -202,7 +231,8 @@ contract FundingRoundFactory is Ownable, SnarkCommon, Params, DomainObjs {
     onlyOwner
   {
     FundingRound currentRound = getCurrentRound();
-    require(address(currentRound) != address(0), 'Factory: Funding round has not been deployed');
+    requireCurrentRound(currentRound);
+
     ERC20 roundToken = currentRound.nativeToken();
     // Factory contract is the default funding source
     uint256 matchingPoolSize = roundToken.balanceOf(address(this));
@@ -231,8 +261,12 @@ contract FundingRoundFactory is Ownable, SnarkCommon, Params, DomainObjs {
     onlyOwner
   {
     FundingRound currentRound = getCurrentRound();
-    require(address(currentRound) != address(0), 'Factory: Funding round has not been deployed');
-    require(!currentRound.isFinalized(), 'Factory: Current round is finalized');
+    requireCurrentRound(currentRound);
+
+    if (currentRound.isFinalized()) {
+      revert AlreadyFinalized();
+    }
+
     currentRound.cancel();
     emit RoundFinalized(address(currentRound));
   }
@@ -283,7 +317,43 @@ contract FundingRoundFactory is Ownable, SnarkCommon, Params, DomainObjs {
   }
 
   modifier onlyCoordinator() {
-    require(msg.sender == coordinator, 'Factory: Sender is not the coordinator');
+    if (msg.sender != coordinator) {
+      revert NotAuthorized();
+    }
+    _;
+  }
+
+  function requireCurrentRound(FundingRound currentRound) private {
+    if (address(currentRound) == address(0)) {
+      revert NoCurrentRound();
+    }
+  }
+
+  modifier requireToken() {
+    if (address(nativeToken) == address(0)) {
+      revert NoToken();
+    }
+    _;
+  }
+
+  modifier requireCoordinator() {
+    if (coordinator == address(0)) {
+      revert NoCoordinator();
+    }
+    _;
+  }
+
+  modifier requireUserRegistry() {
+    if (address(userRegistry) == address(0)) {
+      revert NoUserRegistry();
+    }
+    _;
+  }
+
+  modifier requireRecipientRegistry() {
+    if (address(recipientRegistry) == address(0)) {
+      revert NoRecipientRegistry();
+    }
     _;
   }
 }
diff --git a/contracts/contracts/MACIFactory.sol b/contracts/contracts/MACIFactory.sol
index a13e6cba7..de886d310 100644
--- a/contracts/contracts/MACIFactory.sol
+++ b/contracts/contracts/MACIFactory.sol
@@ -10,31 +10,111 @@ import {TopupCredit} from 'maci-contracts/contracts/TopupCredit.sol';
 import {VkRegistry} from 'maci-contracts/contracts/VkRegistry.sol';
 import {SnarkCommon} from 'maci-contracts/contracts/crypto/SnarkCommon.sol';
 import {Ownable} from '@openzeppelin/contracts/access/Ownable.sol';
-import {Params} from "maci-contracts/contracts/Params.sol";
-
-contract MACIFactory is Ownable, Params, SnarkCommon {
-  // Constants
-  uint256 private constant MESSAGE_TREE_BASE = 2;
-  uint256 private constant VOTE_OPTION_TREE_BASE = 5;
+import {Params} from 'maci-contracts/contracts/Params.sol';
+import {PollFactoryCreator} from './PollFactoryCreator.sol';
+import {VkRegistryCreator} from './VkRegistryCreator.sol';
+import {IPubKey} from 'maci-contracts/contracts/DomainObjs.sol';
 
+contract MACIFactory is Ownable, Params, SnarkCommon, IPubKey {
   // States
+  bool public initialized = false;
+  uint8 public stateTreeDepth;
+
+  // treeDepths
+  TreeDepths public treeDepths;
+
+  VerifyingKey public processVk;
+  VerifyingKey public tallyVk;
+
+  // max values
   MaxValues public maxValues;
+  uint256 public messageBatchSize;
 
   // Events
   event MaciParametersChanged();
   event MaciDeployed(address _maci);
 
+  // errors
+  error NotInitialized();
+
+  function init(
+    uint8 _stateTreeDepth,
+    uint8 _intStateTreeDepth,
+    uint8 _messageTreeSubDepth,
+    uint8 _messageTreeDepth,
+    uint8 _voteOptionTreeDepth,
+    uint256 _maxMessages,
+    uint256 _maxVoteOptions,
+    uint256 _messageBatchSize,
+    VerifyingKey calldata _processVk,
+    VerifyingKey calldata _tallyVk
+  )
+  external
+  {
+    _setMaciParameters(
+      _stateTreeDepth,
+      _intStateTreeDepth,
+      _messageTreeSubDepth,
+      _messageTreeDepth,
+      _voteOptionTreeDepth,
+      _maxMessages,
+      _maxVoteOptions,
+      _messageBatchSize,
+      _processVk,
+      _tallyVk
+    );
+    initialized = true;
+  }
+
   function setMaciParameters(
+    uint8 _stateTreeDepth,
+    uint8 _intStateTreeDepth,
+    uint8 _messageTreeSubDepth,
     uint8 _messageTreeDepth,
-    uint8 _voteOptionTreeDepth
+    uint8 _voteOptionTreeDepth,
+    uint256 _maxMessages,
+    uint256 _maxVoteOptions,
+    uint256 _messageBatchSize,
+    VerifyingKey calldata _processVk,
+    VerifyingKey calldata _tallyVk
   )
     external
-    onlyOwner
   {
-    maxValues = MaxValues(
-      MESSAGE_TREE_BASE ** _messageTreeDepth - 1,
-      VOTE_OPTION_TREE_BASE ** _voteOptionTreeDepth - 1
+    _setMaciParameters(
+      _stateTreeDepth,
+      _intStateTreeDepth,
+      _messageTreeSubDepth,
+      _messageTreeDepth,
+      _voteOptionTreeDepth,
+      _maxMessages,
+      _maxVoteOptions,
+      _messageBatchSize,
+      _processVk,
+      _tallyVk
     );
+  }
+
+  function _setMaciParameters(
+    uint8 _stateTreeDepth,
+    uint8 _intStateTreeDepth,
+    uint8 _messageTreeSubDepth,
+    uint8 _messageTreeDepth,
+    uint8 _voteOptionTreeDepth,
+    uint256 _maxMessages,
+    uint256 _maxVoteOptions,
+    uint256 _messageBatchSize,
+    VerifyingKey calldata _processVk,
+    VerifyingKey calldata _tallyVk
+  )
+    internal
+    onlyOwner
+  {
+    stateTreeDepth = _stateTreeDepth;
+    treeDepths = TreeDepths(_intStateTreeDepth, _messageTreeSubDepth, _messageTreeDepth, _voteOptionTreeDepth);
+    maxValues = MaxValues(_maxMessages, _maxVoteOptions);
+    messageBatchSize = _messageBatchSize;
+    processVk = _processVk;
+    tallyVk = _tallyVk;
 
     emit MaciParametersChanged();
   }
@@ -45,17 +125,19 @@ contract MACIFactory is Ownable, Params, SnarkCommon {
   function deployMaci(
     SignUpGatekeeper signUpGatekeeper,
     InitialVoiceCreditProxy initialVoiceCreditProxy,
-    address vkRegistry,
-    address pollFactoryAddress,
-    address topupCredit
+    address topupCredit,
+    uint256 duration,
+    PubKey calldata coordinatorPubKey
   )
     external
     onlyOwner
     returns (MACI _maci)
   {
-    require(topupCredit != address(0), 'MACIFactory: topupCredit address cannot be zero');
+    if (!initialized ) {
+      revert NotInitialized();
+    }
 
-    PollFactory pollFactory = PollFactory(pollFactoryAddress);
+    PollFactory pollFactory = PollFactoryCreator.create();
     _maci = new MACI(
       pollFactory,
       signUpGatekeeper,
@@ -64,8 +146,21 @@ contract MACIFactory is Ownable, Params, SnarkCommon {
 
     pollFactory.transferOwnership(address(_maci));
 
+    VkRegistry vkRegistry = VkRegistryCreator.create();
+    vkRegistry.setVerifyingKeys(
+        stateTreeDepth,
+        treeDepths.intStateTreeDepth,
+        treeDepths.messageTreeDepth,
+        treeDepths.voteOptionTreeDepth,
+        messageBatchSize,
+        processVk,
+        tallyVk
+    );
+
     MessageAqFactory messageAqFactory = pollFactory.messageAqFactory();
-    _maci.init(VkRegistry(vkRegistry), messageAqFactory, TopupCredit(topupCredit));
+    _maci.init(vkRegistry, messageAqFactory, TopupCredit(topupCredit));
+
+    _maci.deployPoll(duration, maxValues, treeDepths, coordinatorPubKey);
 
     emit MaciDeployed(address(_maci));
   }
diff --git a/contracts/contracts/PollFactoryCreator.sol b/contracts/contracts/PollFactoryCreator.sol
new file mode 100644
index 000000000..91923e304
--- /dev/null
+++ b/contracts/contracts/PollFactoryCreator.sol
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-3.0
+
+pragma solidity 0.8.10;
+
+import {PollFactory} from 'maci-contracts/contracts/Poll.sol';
+
+library PollFactoryCreator {
+   function create() external returns (PollFactory pollFactory) {
+      pollFactory = new PollFactory();
+   }
+}
\ No newline at end of file
diff --git a/contracts/contracts/VkRegistryCreator.sol b/contracts/contracts/VkRegistryCreator.sol
new file mode 100644
index 000000000..1e74242c8
--- /dev/null
+++ b/contracts/contracts/VkRegistryCreator.sol
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-3.0
+
+pragma solidity 0.8.10;
+
+import {VkRegistry} from 'maci-contracts/contracts/VkRegistry.sol';
+
+library VkRegistryCreator {
+   function create() public returns (VkRegistry vkRegistry) {
+      vkRegistry = new VkRegistry();
+   }
+}
\ No newline at end of file