diff --git a/contracts/SLI/Git3Hub.sol b/contracts/SLI/Git3Hub.sol
new file mode 100644
index 0000000..4d1e0a3
--- /dev/null
+++ b/contracts/SLI/Git3Hub.sol
@@ -0,0 +1,150 @@
+//SPDX-License-Identifier: Unlicense
+pragma solidity ^0.8.0;
+
+// import "hardhat/console.sol";
+import "./Git3HubStorage.sol";
+
+contract Git3Hub_SLI is Git3HubStorage_SLI {
+    event RepoCreated(bytes repoName, address owner);
+    event RepoOwnerTransfer(bytes repoName, address oldOwner, address newOwner);
+    event PushRef(bytes repoName, bytes ref);
+
+    constructor() Git3HubStorage_SLI() {}
+
+    modifier onlyOwner(bytes memory repoName) {
+        require(repoNameToOwner[repoName] == msg.sender, "only owner");
+        _;
+    }
+
+    function createRepo(bytes memory repoName) external {
+        require(
+            repoName.length > 0 && repoName.length <= 100,
+            "RepoName length must be 1-100"
+        );
+        for (uint i; i < repoName.length; i++) {
+            bytes1 char = repoName[i];
+            require(
+                (char >= 0x61 && char <= 0x7A) || //a-z
+                    (char >= 0x41 && char <= 0x5A) || //A-Z
+                    (char >= 0x30 && char <= 0x39) || //0-9
+                    (char == 0x2D || char == 0x2E || char == 0x5F), //-._
+                "RepoName must be alphanumeric or -._"
+            );
+        }
+
+        require(
+            repoNameToOwner[repoName] == address(0),
+            "RepoName already exist"
+        );
+        repoNameToOwner[repoName] = msg.sender;
+        emit RepoCreated(repoName, msg.sender);
+    }
+
+    function transferOwnership(
+        bytes memory repoName,
+        address newOwner
+    ) external onlyOwner(repoName) {
+        require(newOwner != address(0), "newOwner must not be zero address");
+        repoNameToOwner[repoName] = newOwner;
+        emit RepoOwnerTransfer(repoName, msg.sender, newOwner);
+    }
+
+    function download(
+        bytes memory repoName,
+        bytes memory path
+    ) external view returns (bytes memory) {
+        return pathToHash[keccak256(bytes.concat(repoName, "/", path))];
+    }
+
+    function upload(
+        bytes memory repoName,
+        bytes memory path,
+        bytes calldata data
+    ) external payable onlyOwner(repoName) {
+        pathToHash[keccak256(bytes.concat(repoName, "/", path))] = data;
+    }
+
+    function remove(
+        bytes memory repoName,
+        bytes memory path
+    ) external onlyOwner(repoName) {
+        // The actually process of remove will remove all the chunks
+        pathToHash[keccak256(bytes.concat(repoName, "/", path))] = "";
+    }
+
+    function listRefs(
+        bytes memory repoName
+    ) external view returns (refData[] memory list) {
+        list = new refData[](repoNameToRefs[repoName].length);
+        for (uint index = 0; index < repoNameToRefs[repoName].length; index++) {
+            list[index] = _convertRefInfo(
+                repoName,
+                nameToRefInfo[repoNameToRefs[repoName][index]]
+            );
+        }
+    }
+
+    function setRef(
+        bytes memory repoName,
+        bytes memory ref,
+        bytes20 refHash
+    ) external onlyOwner(repoName) {
+        bytes memory fullName = bytes.concat(repoName, "/", ref);
+        // only execute `sload` once to reduce gas consumption
+        refInfo memory srs;
+        srs = nameToRefInfo[fullName];
+        uint256 refsLen = repoNameToRefs[repoName].length;
+
+        if (srs.hash == bytes20(0)) {
+            // store refHash for the first time
+            require(
+                refsLen <= uint256(uint96(int96(-1))),
+                "Refs exceed valid length"
+            );
+
+            nameToRefInfo[fullName].hash = refHash;
+            nameToRefInfo[fullName].index = uint96(refsLen);
+
+            repoNameToRefs[repoName].push(fullName);
+        } else {
+            // only update refHash
+            nameToRefInfo[fullName].hash = refHash;
+        }
+        emit PushRef(repoName, ref);
+    }
+
+    function delRef(
+        bytes memory repoName,
+        bytes memory ref
+    ) external onlyOwner(repoName) {
+        bytes memory fullName = bytes.concat(repoName, "/", ref);
+        // only execute `sload` once to reduce gas consumption
+        refInfo memory srs;
+        srs = nameToRefInfo[fullName];
+        uint256 refsLen = repoNameToRefs[repoName].length;
+
+        require(
+            srs.hash != bytes20(0),
+            "Reference of this name does not exist"
+        );
+        require(srs.index < refsLen, "System Error: Invalid index");
+
+        if (srs.index < refsLen - 1) {
+            repoNameToRefs[repoName][srs.index] = repoNameToRefs[repoName][
+                refsLen - 1
+            ];
+            nameToRefInfo[repoNameToRefs[repoName][refsLen - 1]].index = srs
+                .index;
+        }
+        repoNameToRefs[repoName].pop();
+        delete nameToRefInfo[fullName];
+    }
+
+    function _convertRefInfo(
+        bytes memory repoName,
+        refInfo memory info
+    ) internal view returns (refData memory res) {
+        res.hash = info.hash;
+        res.name = repoNameToRefs[repoName][info.index];
+    }
+}
diff --git a/contracts/SLI/Git3HubStorage.sol b/contracts/SLI/Git3HubStorage.sol
new file mode 100644
index 0000000..0733843
--- /dev/null
+++ b/contracts/SLI/Git3HubStorage.sol
@@ -0,0 +1,22 @@
+//SPDX-License-Identifier: Unlicense
+pragma solidity ^0.8.0;
+
+contract Git3HubStorage_SLI {
+    struct refInfo {
+        bytes20 hash;
+        uint96 index;
+    }
+
+    struct refData {
+        bytes20 hash;
+        bytes name;
+    }
+    // FileStorage Storage Layout
+    mapping(bytes32 => bytes) public pathToHash;
+    
+
+    // Git3Hub Storage Layout
+    mapping(bytes => address) public repoNameToOwner;
+    mapping(bytes => refInfo) public nameToRefInfo; // dev => {hash: 0x1234..., index: 1 }
+    mapping(bytes => bytes[]) public repoNameToRefs; // [main, dev, test, staging]
+}
diff --git a/contracts/SLI/testfvm.sol b/contracts/SLI/testfvm.sol
new file mode 100644
index 0000000..e128d8f
--- /dev/null
+++ b/contracts/SLI/testfvm.sol
@@ -0,0 +1,10 @@
+//SPDX-License-Identifier: Unlicense
+pragma solidity ^0.8.0;
+
+contract Hello{
+    string public abc;
+
+    constructor(){
+        abc="Hello World";
+    }
+}
\ No newline at end of file
diff --git a/contracts/Git3Hub.sol b/contracts/ethstorage/Git3Hub.sol
similarity index 99%
rename from contracts/Git3Hub.sol
rename to contracts/ethstorage/Git3Hub.sol
index 10fc293..03e520a 100644
--- a/contracts/Git3Hub.sol
+++ b/contracts/ethstorage/Git3Hub.sol
@@ -5,7 +5,7 @@ pragma solidity ^0.8.0;
 // import "@openzeppelin/contracts/access/Ownable.sol";
 import "./v2/LargeStorageManagerV2.sol";
 
-contract Git3Hub is LargeStorageManagerV2 {
+contract Git3Hub_ES is LargeStorageManagerV2 {
     event RepoCreated(bytes repoName, address owner);
     event RepoOwnerTransfer(bytes repoName, address oldOwner, address newOwner);
     event PushRef(bytes repoName, bytes ref);
diff --git a/contracts/Git3HubStorage.sol b/contracts/ethstorage/Git3HubStorage.sol
similarity index 91%
rename from contracts/Git3HubStorage.sol
rename to contracts/ethstorage/Git3HubStorage.sol
index 799fdb4..1e05ecb 100644
--- a/contracts/Git3HubStorage.sol
+++ b/contracts/ethstorage/Git3HubStorage.sol
@@ -1,7 +1,7 @@
 //SPDX-License-Identifier: Unlicense
 pragma solidity ^0.8.0;
 
-contract Git3HubStorage {
+contract Git3HubStorage_ES {
     struct refInfo {
         bytes20 hash;
         uint96 index;
@@ -14,10 +14,10 @@ contract Git3HubStorage {
     // LargeStorageManagerV2 Storage Layout
     mapping(bytes32 => mapping(uint256 => bytes32)) internal keyToMetadata;
     mapping(bytes32 => mapping(uint256 => mapping(uint256 => bytes32)))
-        internal keyToSlots;  
+        internal keyToSlots;
 
     // Git3Hub Storage Layout
     mapping(bytes => address) public repoNameToOwner;
     mapping(bytes => refInfo) public nameToRefInfo; // dev => {hash: 0x1234..., index: 1 }
     mapping(bytes => bytes[]) public repoNameToRefs; // [main, dev, test, staging]
-}
\ No newline at end of file
+}
diff --git a/contracts/v2/LargeStorageManagerV2.sol b/contracts/ethstorage/v2/LargeStorageManagerV2.sol
similarity index 96%
rename from contracts/v2/LargeStorageManagerV2.sol
rename to contracts/ethstorage/v2/LargeStorageManagerV2.sol
index 34b7934..be53a62 100644
--- a/contracts/v2/LargeStorageManagerV2.sol
+++ b/contracts/ethstorage/v2/LargeStorageManagerV2.sol
@@ -7,11 +7,11 @@ import "./StorageSlotSelfDestructableV2.sol";
 import "../Git3HubStorage.sol";
 
 // Large storage manager to support arbitrarily-sized data with multiple chunk
-contract LargeStorageManagerV2 is Git3HubStorage {
+contract LargeStorageManagerV2 is Git3HubStorage_ES {
     using SlotHelper for bytes32;
     using SlotHelper for address;
 
-    uint8 internal constant SLOT_LIMIT = 0;                                                                                                                                                         
+    uint8 internal constant SLOT_LIMIT = 0;
 
     function isOptimize() public pure returns (bool) {
         return SLOT_LIMIT > 0;
diff --git a/contracts/v2/LargerStorageManagerV2Test.sol b/contracts/ethstorage/v2/LargerStorageManagerV2Test.sol
similarity index 100%
rename from contracts/v2/LargerStorageManagerV2Test.sol
rename to contracts/ethstorage/v2/LargerStorageManagerV2Test.sol
diff --git a/contracts/v2/Memory.sol b/contracts/ethstorage/v2/Memory.sol
similarity index 100%
rename from contracts/v2/Memory.sol
rename to contracts/ethstorage/v2/Memory.sol
diff --git a/contracts/v2/StorageHelperV2.sol b/contracts/ethstorage/v2/StorageHelperV2.sol
similarity index 100%
rename from contracts/v2/StorageHelperV2.sol
rename to contracts/ethstorage/v2/StorageHelperV2.sol
diff --git a/contracts/v2/StorageSlotFactory.sol b/contracts/ethstorage/v2/StorageSlotFactory.sol
similarity index 100%
rename from contracts/v2/StorageSlotFactory.sol
rename to contracts/ethstorage/v2/StorageSlotFactory.sol
diff --git a/contracts/v2/StorageSlotSelfDestructableV2.sol b/contracts/ethstorage/v2/StorageSlotSelfDestructableV2.sol
similarity index 100%
rename from contracts/v2/StorageSlotSelfDestructableV2.sol
rename to contracts/ethstorage/v2/StorageSlotSelfDestructableV2.sol
diff --git a/contracts/v2/optimize/SlotHelper.sol b/contracts/ethstorage/v2/optimize/SlotHelper.sol
similarity index 100%
rename from contracts/v2/optimize/SlotHelper.sol
rename to contracts/ethstorage/v2/optimize/SlotHelper.sol
diff --git a/contracts/v2/optimize/SlotHelperTest.sol b/contracts/ethstorage/v2/optimize/SlotHelperTest.sol
similarity index 100%
rename from contracts/v2/optimize/SlotHelperTest.sol
rename to contracts/ethstorage/v2/optimize/SlotHelperTest.sol
diff --git a/scripts/create-repo.ts b/scripts/create-repo.ts
index e20bc7e..9a38169 100644
--- a/scripts/create-repo.ts
+++ b/scripts/create-repo.ts
@@ -3,25 +3,40 @@ const { ethers } = hre;
 import fs from "fs";
 
 async function main() {
-    const accounts = await ethers.getSigners();
-    console.log(accounts[0].address);
+  const accounts = await ethers.getSigners();
+  console.log(accounts[0].address);
+  let provider = ethers.provider;
+  let price = await provider.getFeeData();
 
-    const Git3 = await hre.ethers.getContractAt(
-        "Git3Hub",
-        "0xee2879cd03A3D82C0Ffb648AA5773bcEBb0d5741"
-    );
-    let rept
-    // let owner = await Git3.repoNameToOwner(Buffer.from("helloworld1"))
-    // console.log(owner)
-    // return
-    rept = await Git3.createRepo(Buffer.from("helloworld"))
-    console.log("rept", "https://explorer.galileo.web3q.io/tx/" + rept.hash);
+  const Git3 = await hre.ethers.getContractAt(
+    "Git3Hub_SLI",
+    "0xF56A1dd941667911896B9B872AC79E56cfc6a3dB"
+  );
+  let rept;
+  let repoName = Buffer.from("h2");
+  let owner = await Git3.repoNameToOwner(repoName);
+  console.log(owner);
 
-    // rept = await Git3.transferOwnership(Buffer.from("helloworld"), "0x1eD9c2F6814eA5225Bb78f2F2CA802Ded120077A")
-    // console.log("rept", "https://explorer.galileo.web3q.io/tx/" + rept.hash)
+  rept = await Git3.createRepo(repoName, {
+    type: 2,
+    maxFeePerGas: price.maxFeePerGas!,
+    maxPriorityFeePerGas: price.maxPriorityFeePerGas!,
+  });
+  console.log("rept", "https://explorer.galileo.web3q.io/tx/" + rept.hash);
+
+  rept = await Git3.transferOwnership(
+    repoName,
+    "0x1eD9c2F6814eA5225Bb78f2F2CA802Ded120077A",
+    {
+      type: 2,
+      maxFeePerGas: price.maxFeePerGas!,
+      maxPriorityFeePerGas: price.maxPriorityFeePerGas!,
+    }
+  );
+  console.log("rept", "https://explorer.galileo.web3q.io/tx/" + rept.hash);
 }
 
 main().catch((error) => {
-    console.error(error);
-    process.exit(1);
+  console.error(error);
+  process.exit(1);
 });
diff --git a/scripts/deploy.ts b/scripts/deploy-ethstorage.ts
similarity index 95%
rename from scripts/deploy.ts
rename to scripts/deploy-ethstorage.ts
index 3752632..03a8c89 100644
--- a/scripts/deploy.ts
+++ b/scripts/deploy-ethstorage.ts
@@ -11,7 +11,7 @@ async function main() {
 
   console.log(operator.address, nonce)
 
-  const Git3 = await ethers.getContractFactory("Git3Hub");
+  const Git3 = await ethers.getContractFactory("Git3Hub_ES");
   const git3 = await Git3.deploy({ nonce: nonce });
 
   let logicReceipt = await git3.deployed()
diff --git a/scripts/deploy-sli.ts b/scripts/deploy-sli.ts
new file mode 100644
index 0000000..346a4d4
--- /dev/null
+++ b/scripts/deploy-sli.ts
@@ -0,0 +1,51 @@
+import { ethers } from "hardhat";
+
+async function main() {
+  let provider = ethers.provider;
+  let [operator] = await ethers.getSigners();
+  let nonce = await operator.getTransactionCount();
+  console.log(operator.address, nonce, await operator.getBalance());
+
+  let price = await provider.getFeeData();
+  let net = await provider.getNetwork();
+  console.log(price, net.chainId);
+
+  const Git3 = await ethers.getContractFactory("Git3Hub_SLI");
+  const git3 = await Git3.deploy({
+    nonce: nonce,
+    type: 2,
+    maxFeePerGas: price.maxFeePerGas!,
+    maxPriorityFeePerGas: price.maxPriorityFeePerGas!,
+    gasLimit: 3000000,
+  });
+
+  let logicReceipt = await git3.deployed();
+  console.log(logicReceipt.deployTransaction.hash);
+  nonce++;
+
+  let factory1 = await ethers.getContractFactory("UpgradeableProxy");
+  // Proxy don't need to init Git3 contract because the constructor is empty.
+  let initSelector = "0x";
+
+  let proxyInstance = await factory1
+    .connect(operator)
+    .deploy(git3.address, operator.address, initSelector, {
+      nonce: nonce,
+      type: 2,
+      maxFeePerGas: price.maxFeePerGas,
+      maxPriorityFeePerGas: price.maxPriorityFeePerGas,
+    });
+  let proxyReceipt = await proxyInstance.deployed();
+  console.log(proxyReceipt.deployTransaction.hash);
+
+  // console.log({logicReceipt,proxyReceipt});
+  console.log("Logic Contract", git3.address);
+  console.log("Proxy Contract", proxyInstance.address);
+}
+
+// We recommend this pattern to be able to use async/await everywhere
+// and properly handle errors.
+main().catch((error) => {
+  console.error(error);
+  process.exitCode = 1;
+});
diff --git a/scripts/download-file.ts b/scripts/download-file.ts
new file mode 100644
index 0000000..73e9d38
--- /dev/null
+++ b/scripts/download-file.ts
@@ -0,0 +1,24 @@
+import hre from "hardhat";
+const { ethers } = hre;
+import fs from "fs";
+
+async function main() {
+  const accounts = await ethers.getSigners();
+  console.log(accounts[0].address);
+
+  const Git3 = await hre.ethers.getContractAt(
+    "Git3Hub_SLI",
+    "0xF56A1dd941667911896B9B872AC79E56cfc6a3dB"
+  );
+
+  let res = await Git3.download(
+    Buffer.from("h1"),
+    Buffer.from("objects/9f/2781f252bddce27d26a4e9ae4acf965f09ba9f")
+  );
+  console.log(res);
+}
+
+main().catch((error) => {
+  console.error(error);
+  process.exit(1);
+});