diff --git a/script/universal/NestedMultisigBuilder.sol b/script/universal/NestedMultisigBuilder.sol
index 4b7d745..323d425 100644
--- a/script/universal/NestedMultisigBuilder.sol
+++ b/script/universal/NestedMultisigBuilder.sol
@@ -7,7 +7,7 @@ import {IMulticall3} from "forge-std/interfaces/IMulticall3.sol";
 import {Vm} from "forge-std/Vm.sol";
 
 import {IGnosisSafe} from "./IGnosisSafe.sol";
-import {MultisigBase} from "./MultisigBase.sol";
+import {NestedMultisigBase} from "./NestedMultisigBase.sol";
 import {Signatures} from "./Signatures.sol";
 import {Simulation} from "./Simulation.sol";
 
@@ -15,44 +15,18 @@ import {Simulation} from "./Simulation.sol";
  * @title NestedMultisigBuilder
  * @notice Modeled from Optimism's SafeBuilder, but built for nested safes (Safes where the signers are other Safes).
  */
-abstract contract NestedMultisigBuilder is MultisigBase {
+abstract contract NestedMultisigBuilder is NestedMultisigBase {
     /**
      * -----------------------------------------------------------
      * Virtual Functions
      * -----------------------------------------------------------
      */
 
-    /**
-     * @notice Returns the nested safe address to execute the final transaction from
-     */
-    function _ownerSafe() internal view virtual returns (address);
-
-    /**
-     * @notice Creates the calldata for both signatures (`sign`) and execution (`run`)
-     */
-    function _buildCalls() internal view virtual returns (IMulticall3.Call3[] memory);
-
-    /**
-     * @notice Follow up assertions to ensure that the script ran to completion.
-     * @dev Called after `sign` and `run`, but not `approve`.
-     */
-    function _postCheck(Vm.AccountAccess[] memory accesses, Simulation.Payload memory simPayload) internal virtual;
-
-    /**
-     * @notice Follow up assertions on state and simulation after a `sign` call.
-     */
-    function _postSign(Vm.AccountAccess[] memory accesses, Simulation.Payload memory simPayload) internal virtual {}
-
     /**
      * @notice Follow up assertions on state and simulation after a `approve` call.
      */
     function _postApprove(Vm.AccountAccess[] memory accesses, Simulation.Payload memory simPayload) internal virtual {}
 
-    /**
-     * @notice Follow up assertions on state and simulation after a `run` call.
-     */
-    function _postRun(Vm.AccountAccess[] memory accesses, Simulation.Payload memory simPayload) internal virtual {}
-
     /**
      * -----------------------------------------------------------
      * Implemented Functions
@@ -138,98 +112,4 @@ abstract contract NestedMultisigBuilder is MultisigBase {
         _postRun(accesses, simPayload);
         _postCheck(accesses, simPayload);
     }
-
-    function _readFrom_SAFE_NONCE() internal pure override returns (bool) {
-        return false;
-    }
-
-    function _generateApproveCall(address _safe, IMulticall3.Call3[] memory _calls)
-        internal
-        view
-        returns (IMulticall3.Call3 memory)
-    {
-        bytes32 hash = _getTransactionHash(_safe, _calls);
-
-        console.log("---\nNested hash:");
-        console.logBytes32(hash);
-
-        return IMulticall3.Call3({
-            target: _safe,
-            allowFailure: false,
-            callData: abi.encodeCall(IGnosisSafe(_safe).approveHash, (hash))
-        });
-    }
-
-    function _simulateForSigner(address _signerSafe, address _safe, IMulticall3.Call3[] memory _calls)
-        internal
-        returns (Vm.AccountAccess[] memory, Simulation.Payload memory)
-    {
-        bytes memory data = abi.encodeCall(IMulticall3.aggregate3, (_calls));
-        IMulticall3.Call3[] memory calls = _simulateForSignerCalls(_signerSafe, _safe, data);
-
-        // Now define the state overrides for the simulation.
-        Simulation.StateOverride[] memory overrides = _overrides(_signerSafe, _safe);
-
-        bytes memory txData = abi.encodeCall(IMulticall3.aggregate3, (calls));
-        console.log("---\nSimulation link:");
-        // solhint-disable max-line-length
-        Simulation.logSimulationLink({_to: MULTICALL3_ADDRESS, _data: txData, _from: msg.sender, _overrides: overrides});
-
-        // Forge simulation of the data logged in the link. If the simulation fails
-        // we revert to make it explicit that the simulation failed.
-        Simulation.Payload memory simPayload =
-            Simulation.Payload({to: MULTICALL3_ADDRESS, data: txData, from: msg.sender, stateOverrides: overrides});
-        Vm.AccountAccess[] memory accesses = Simulation.simulateFromSimPayload(simPayload);
-        return (accesses, simPayload);
-    }
-
-    function _simulateForSignerCalls(address _signerSafe, address _safe, bytes memory _data)
-        internal
-        view
-        returns (IMulticall3.Call3[] memory)
-    {
-        IMulticall3.Call3[] memory calls = new IMulticall3.Call3[](2);
-        bytes32 hash = _getTransactionHash(_safe, _data);
-
-        // simulate an approveHash, so that signer can verify the data they are signing
-        bytes memory approveHashData = abi.encodeCall(
-            IMulticall3.aggregate3,
-            (
-                _toArray(
-                    IMulticall3.Call3({
-                        target: _safe,
-                        allowFailure: false,
-                        callData: abi.encodeCall(IGnosisSafe(_safe).approveHash, (hash))
-                    })
-                )
-            )
-        );
-        bytes memory approveHashExec = _execTransationCalldata(
-            _signerSafe, approveHashData, Signatures.genPrevalidatedSignature(MULTICALL3_ADDRESS)
-        );
-        calls[0] = IMulticall3.Call3({target: _signerSafe, allowFailure: false, callData: approveHashExec});
-
-        // simulate the final state changes tx, so that signer can verify the final results
-        bytes memory finalExec = _execTransationCalldata(_safe, _data, Signatures.genPrevalidatedSignature(_signerSafe));
-        calls[1] = IMulticall3.Call3({target: _safe, allowFailure: false, callData: finalExec});
-
-        return calls;
-    }
-
-    function _overrides(address _signerSafe, address _safe) internal view returns (Simulation.StateOverride[] memory) {
-        Simulation.StateOverride[] memory simOverrides = _simulationOverrides();
-        Simulation.StateOverride[] memory overrides = new Simulation.StateOverride[](2 + simOverrides.length);
-        overrides[0] = _safeOverrides(_signerSafe, MULTICALL3_ADDRESS);
-        overrides[1] = _safeOverrides(_safe, address(0));
-        for (uint256 i = 0; i < simOverrides.length; i++) {
-            overrides[i + 2] = simOverrides[i];
-        }
-        return overrides;
-    }
-
-    function _toArray(IMulticall3.Call3 memory call) internal pure returns (IMulticall3.Call3[] memory) {
-        IMulticall3.Call3[] memory calls = new IMulticall3.Call3[](1);
-        calls[0] = call;
-        return calls;
-    }
 }