diff --git a/.github/workflows/contract-tests.yml b/.github/workflows/contract-tests.yml
new file mode 100644
index 0000000..7d141e3
--- /dev/null
+++ b/.github/workflows/contract-tests.yml
@@ -0,0 +1,39 @@
+name: CI
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  test-format:
+    name: Test format
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+        with:
+          version: stable
+          cache: false
+
+      - name: Setup node/yarn
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          cache: 'yarn'
+          cache-dependency-path: '**/yarn.lock'
+
+      - name: Install packages
+        run: yarn
+
+      - name: Check Contracts Format
+        run: yarn format --check
+
+      - name: Make sure contracts can be built
+        run: yarn build
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..dc03a0d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+cache
+out
+lib
+node_modules
\ No newline at end of file
diff --git a/ArbDebug.sol b/ArbDebug.sol
index 66a9297..405241b 100644
--- a/ArbDebug.sol
+++ b/ArbDebug.sol
@@ -31,8 +31,6 @@ interface ArbDebug {
         uint64 number
     ) external pure;
 
-    function panic() external;
-
     function legacyError() external pure;
 
     error Custom(uint64, string, bool);
diff --git a/ArbGasInfo.sol b/ArbGasInfo.sol
index a369403..f8961fd 100644
--- a/ArbGasInfo.sol
+++ b/ArbGasInfo.sol
@@ -61,14 +61,6 @@ interface ArbGasInfo {
     /// @notice Get how slowly ArbOS updates its estimate of the L1 basefee
     function getL1BaseFeeEstimateInertia() external view returns (uint64);
 
-    /// @notice Get the L1 pricer reward rate, in wei per unit
-    /// Available in ArbOS version 11
-    function getL1RewardRate() external view returns (uint64);
-
-    /// @notice Get the L1 pricer reward recipient
-    /// Available in ArbOS version 11
-    function getL1RewardRecipient() external view returns (address);
-
     /// @notice Deprecated -- Same as getL1BaseFeeEstimate()
     function getL1GasPriceEstimate() external view returns (uint256);
 
@@ -92,27 +84,4 @@ interface ArbGasInfo {
 
     /// @notice Returns the cost amortization cap in basis points
     function getAmortizedCostCapBips() external view returns (uint64);
-
-    /// @notice Returns the available funds from L1 fees
-    function getL1FeesAvailable() external view returns (uint256);
-
-    /// @notice Returns the equilibration units parameter for L1 price adjustment algorithm
-    /// Available in ArbOS version 20
-    function getL1PricingEquilibrationUnits() external view returns (uint256);
-
-    /// @notice Returns the last time the L1 calldata pricer was updated.
-    /// Available in ArbOS version 20
-    function getLastL1PricingUpdateTime() external view returns (uint64);
-
-    /// @notice Returns the amount of L1 calldata payments due for rewards (per the L1 reward rate)
-    /// Available in ArbOS version 20
-    function getL1PricingFundsDueForRewards() external view returns (uint256);
-
-    /// @notice Returns the amount of L1 calldata posted since the last update.
-    /// Available in ArbOS version 20
-    function getL1PricingUnitsSinceUpdate() external view returns (uint64);
-
-    /// @notice Returns the L1 pricing surplus as of the last update (may be negative).
-    /// Available in ArbOS version 20
-    function getLastL1PricingSurplus() external view returns (int256);
 }
diff --git a/ArbNativeTokenManager.sol b/ArbNativeTokenManager.sol
deleted file mode 100644
index 2efb86f..0000000
--- a/ArbNativeTokenManager.sol
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright 2021-2025, Offchain Labs, Inc.
-// For license information, see https://github.com/OffchainLabs/nitro-contracts/blob/main/LICENSE.md
-// SPDX-License-Identifier: BUSL-1.1
-
-pragma solidity >=0.4.21 <0.9.0;
-
-/**
- * @title Enables minting and burning native tokens.
- * @notice Authorized callers are added/removed through ArbOwner precompile.
- *         Precompiled contract that exists in every Arbitrum chain at 0x0000000000000000000000000000000000000073.
- *         Available in ArbOS version 41
- */
-interface ArbNativeTokenManager {
-    /**
-     * @notice Emitted when some amount of the native gas token is minted to a NativeTokenOwner.
-     */
-    event NativeTokenMinted(address indexed to, uint256 amount);
-
-    /**
-     * @notice Emitted when some amount of the native gas token is burned from a NativeTokenOwner.
-     */
-    event NativeTokenBurned(address indexed from, uint256 amount);
-
-    /**
-     * @notice In case the caller is authorized,
-     * mints some amount of the native gas token for this chain to the caller.
-     */
-    function mintNativeToken(
-        uint256 amount
-    ) external;
-
-    /**
-     * @notice In case the caller is authorized,
-     * burns some amount of the native gas token for this chain from the caller.
-     */
-    function burnNativeToken(
-        uint256 amount
-    ) external;
-}
diff --git a/ArbOwner.sol b/ArbOwner.sol
index 8c04e4a..8138b61 100644
--- a/ArbOwner.sol
+++ b/ArbOwner.sol
@@ -33,34 +33,6 @@ interface ArbOwner {
     /// @notice Retrieves the list of chain owners
     function getAllChainOwners() external view returns (address[] memory);
 
-    /// @notice Sets the NativeTokenManagementFrom time
-    /// Available in ArbOS version 41
-    function setNativeTokenManagementFrom(
-        uint64 timestamp
-    ) external;
-
-    /// @notice Add account as a native token owner
-    /// Available in ArbOS version 41
-    function addNativeTokenOwner(
-        address newOwner
-    ) external;
-
-    /// @notice Remove account from the list of native token owners
-    /// Available in ArbOS version 41
-    function removeNativeTokenOwner(
-        address ownerToRemove
-    ) external;
-
-    /// @notice See if the user is a native token owner
-    /// Available in ArbOS version 41
-    function isNativeTokenOwner(
-        address addr
-    ) external view returns (bool);
-
-    /// @notice Retrieves the list of native token owners
-    /// Available in ArbOS version 41
-    function getAllNativeTokenOwners() external view returns (address[] memory);
-
     /// @notice Set how slowly ArbOS updates its estimate of the L1 basefee
     function setL1BaseFeeEstimateInertia(
         uint64 inertia
@@ -99,19 +71,11 @@ interface ArbOwner {
     /// @notice Get the network fee collector
     function getNetworkFeeAccount() external view returns (address);
 
-    /// @notice Get the infrastructure fee collector
-    function getInfraFeeAccount() external view returns (address);
-
     /// @notice Set the network fee collector
     function setNetworkFeeAccount(
         address newNetworkFeeAccount
     ) external;
 
-    /// @notice Set the infrastructure fee collector
-    function setInfraFeeAccount(
-        address newInfraFeeAccount
-    ) external;
-
     /// @notice Upgrades ArbOS to the requested version at the requested timestamp
     function scheduleArbOSUpgrade(uint64 newVersion, uint64 timestamp) external;
 
@@ -145,104 +109,11 @@ interface ArbOwner {
         int64 cost
     ) external;
 
-    /**
-     * @notice Sets the Brotli compression level used for fast compression
-     * Available in ArbOS version 12 with default level as 1
-     */
-    function setBrotliCompressionLevel(
-        uint64 level
-    ) external;
-
     /// @notice Sets the cost amortization cap in basis points
     function setAmortizedCostCapBips(
         uint64 cap
     ) external;
 
-    /// @notice Releases surplus funds from L1PricerFundsPoolAddress for use
-    function releaseL1PricerSurplusFunds(
-        uint256 maxWeiToRelease
-    ) external returns (uint256);
-
-    /// @notice Sets the amount of ink 1 gas buys
-    /// @param price the conversion rate (must fit in a uint24)
-    function setInkPrice(
-        uint32 price
-    ) external;
-
-    /// @notice Sets the maximum depth (in wasm words) a wasm stack may grow
-    function setWasmMaxStackDepth(
-        uint32 depth
-    ) external;
-
-    /// @notice Sets the number of free wasm pages a tx gets
-    function setWasmFreePages(
-        uint16 pages
-    ) external;
-
-    /// @notice Sets the base cost of each additional wasm page
-    function setWasmPageGas(
-        uint16 gas
-    ) external;
-
-    /// @notice Sets the maximum number of pages a wasm may allocate
-    function setWasmPageLimit(
-        uint16 limit
-    ) external;
-
-    /// @notice Sets the maximum size of the uncompressed wasm code in bytes
-    function setWasmMaxSize(
-        uint32 size
-    ) external;
-
-    /// @notice Sets the minimum costs to invoke a program
-    /// @param gas amount of gas paid in increments of 256 when not the program is not cached
-    /// @param cached amount of gas paid in increments of 64 when the program is cached
-    function setWasmMinInitGas(uint8 gas, uint16 cached) external;
-
-    /// @notice Sets the linear adjustment made to program init costs.
-    /// @param percent the adjustment (100% = no adjustment).
-    function setWasmInitCostScalar(
-        uint64 percent
-    ) external;
-
-    /// @notice Sets the number of days after which programs deactivate
-    function setWasmExpiryDays(
-        uint16 _days
-    ) external;
-
-    /// @notice Sets the age a program must be to perform a keepalive
-    function setWasmKeepaliveDays(
-        uint16 _days
-    ) external;
-
-    /// @notice Sets the number of extra programs ArbOS caches during a given block
-    function setWasmBlockCacheSize(
-        uint16 count
-    ) external;
-
-    /// @notice Adds account as a wasm cache manager
-    function addWasmCacheManager(
-        address manager
-    ) external;
-
-    /// @notice Removes account from the list of wasm cache managers
-    function removeWasmCacheManager(
-        address manager
-    ) external;
-
-    /// @notice Sets serialized chain config in ArbOS state
-    function setChainConfig(
-        string calldata chainConfig
-    ) external;
-
-    /**
-     * @notice Sets the increased calldata price feature on or off (EIP-7623)
-     * Available in ArbOS version 40 with default as false
-     */
-    function setCalldataPriceIncrease(
-        bool enable
-    ) external;
-
     /// Emitted when a successful call is made to this precompile
     event OwnerActs(bytes4 indexed method, address indexed owner, bytes data);
 }
diff --git a/ArbOwnerPublic.sol b/ArbOwnerPublic.sol
index ff52259..08597a4 100644
--- a/ArbOwnerPublic.sol
+++ b/ArbOwnerPublic.sol
@@ -12,50 +12,12 @@ interface ArbOwnerPublic {
         address addr
     ) external view returns (bool);
 
-    /**
-     * @notice Rectify the list of chain owners
-     * If successful, emits ChainOwnerRectified event
-     * Available in ArbOS version 11
-     */
-    function rectifyChainOwner(
-        address ownerToRectify
-    ) external;
-
     /// @notice Retrieves the list of chain owners
     function getAllChainOwners() external view returns (address[] memory);
 
-    /// @notice See if the user is a native token owner
-    /// Available in ArbOS version 41
-    function isNativeTokenOwner(
-        address addr
-    ) external view returns (bool);
-
-    /// @notice Retrieves the list of native token owners
-    /// Available in ArbOS version 41
-    function getAllNativeTokenOwners() external view returns (address[] memory);
-
     /// @notice Gets the network fee collector
     function getNetworkFeeAccount() external view returns (address);
 
     /// @notice Get the infrastructure fee collector
     function getInfraFeeAccount() external view returns (address);
-
-    /// @notice Get the Brotli compression level used for fast compression
-    function getBrotliCompressionLevel() external view returns (uint64);
-
-    /// @notice Get the next scheduled ArbOS version upgrade and its activation timestamp.
-    /// Returns (0, 0) if no ArbOS upgrade is scheduled.
-    /// Available in ArbOS version 20.
-    function getScheduledUpgrade()
-        external
-        view
-        returns (uint64 arbosVersion, uint64 scheduledForTimestamp);
-
-    /**
-     * @notice Checks if the increased calldata price feature (EIP-7623) is enabled
-     * Available in ArbOS version 40 with default as false
-     */
-    function isCalldataPriceIncreaseEnabled() external view returns (bool);
-
-    event ChainOwnerRectified(address rectifiedOwner);
 }
diff --git a/ArbWasm.sol b/ArbWasm.sol
deleted file mode 100644
index 5e94420..0000000
--- a/ArbWasm.sol
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright 2022-2024, Offchain Labs, Inc.
-// For license information, see https://github.com/OffchainLabs/nitro/blob/master/LICENSE
-// SPDX-License-Identifier: BUSL-1.1
-
-pragma solidity >=0.4.21 <0.9.0;
-
-/**
- * @title Methods for managing user programs
- * @notice Precompiled contract that exists in every Arbitrum chain at 0x0000000000000000000000000000000000000071.
- */
-interface ArbWasm {
-    /// @notice Activate a wasm program
-    /// @param program the program to activate
-    /// @return version the stylus version the program was activated against
-    /// @return dataFee the data fee paid to store the activated program
-    function activateProgram(
-        address program
-    ) external payable returns (uint16 version, uint256 dataFee);
-
-    /// @notice Gets the latest stylus version
-    /// @return version the stylus version
-    function stylusVersion() external view returns (uint16 version);
-
-    /// @notice Gets the stylus version the program with codehash was most recently activated against
-    /// @return version the program version (reverts for EVM contracts)
-    function codehashVersion(
-        bytes32 codehash
-    ) external view returns (uint16 version);
-
-    /// @notice Extends a program's expiration date.
-    /// Reverts if too soon or if the program is not up to date.
-    function codehashKeepalive(
-        bytes32 codehash
-    ) external payable;
-
-    /// @notice Gets a program's asm size.
-    /// Reverts if program is not active.
-    /// @return size the size in bytes
-    function codehashAsmSize(
-        bytes32 codehash
-    ) external view returns (uint32 size);
-
-    /// @notice Gets the stylus version the program was most recently activated against
-    /// @return version the program version (reverts for EVM contracts)
-    function programVersion(
-        address program
-    ) external view returns (uint16 version);
-
-    /// @notice Gets the cost to invoke the program
-    /// @return gas the amount of gas
-    /// @return gasWhenCached the amount of gas if the program was recently used
-    function programInitGas(
-        address program
-    ) external view returns (uint64 gas, uint64 gasWhenCached);
-
-    /// @notice Gets the memory footprint of the program at the given address in pages
-    /// @return footprint the memory footprint of program in pages (reverts for EVM contracts)
-    function programMemoryFootprint(
-        address program
-    ) external view returns (uint16 footprint);
-
-    /// @notice Gets the amount of time remaining until the program expires
-    /// @return _secs the time left in seconds (reverts for EVM contracts)
-    function programTimeLeft(
-        address program
-    ) external view returns (uint64 _secs);
-
-    /// @notice Gets the conversion rate between gas and ink
-    /// @return price the amount of ink 1 gas buys
-    function inkPrice() external view returns (uint32 price);
-
-    /// @notice Gets the wasm stack size limit
-    /// @return depth the maximum depth (in wasm words) a wasm stack may grow
-    function maxStackDepth() external view returns (uint32 depth);
-
-    /// @notice Gets the number of free wasm pages a program gets
-    /// @return pages the number of wasm pages (2^16 bytes)
-    function freePages() external view returns (uint16 pages);
-
-    /// @notice Gets the base cost of each additional wasm page (2^16 bytes)
-    /// @return gas base amount of gas needed to grow another wasm page
-    function pageGas() external view returns (uint16 gas);
-
-    /// @notice Gets the ramp that drives exponential memory costs
-    /// @return ramp bits representing the floating point value
-    function pageRamp() external view returns (uint64 ramp);
-
-    /// @notice Gets the maximum number of pages a wasm may allocate
-    /// @return limit the number of pages
-    function pageLimit() external view returns (uint16 limit);
-
-    /// @notice Gets the minimum costs to invoke a program
-    /// @return gas amount of gas in increments of 256 when not cached
-    /// @return cached amount of gas in increments of 64 when cached
-    function minInitGas() external view returns (uint64 gas, uint64 cached);
-
-    /// @notice Gets the linear adjustment made to program init costs.
-    /// @return percent the adjustment (100% = no adjustment).
-    function initCostScalar() external view returns (uint64 percent);
-
-    /// @notice Gets the number of days after which programs deactivate
-    /// @return _days the number of days
-    function expiryDays() external view returns (uint16 _days);
-
-    /// @notice Gets the age a program must be to perform a keepalive
-    /// @return _days the number of days
-    function keepaliveDays() external view returns (uint16 _days);
-
-    /// @notice Gets the number of extra programs ArbOS caches during a given block.
-    /// @return count the number of same-block programs.
-    function blockCacheSize() external view returns (uint16 count);
-
-    event ProgramActivated(
-        bytes32 indexed codehash,
-        bytes32 moduleHash,
-        address program,
-        uint256 dataFee,
-        uint16 version
-    );
-    event ProgramLifetimeExtended(bytes32 indexed codehash, uint256 dataFee);
-
-    error ProgramNotWasm();
-    error ProgramNotActivated();
-    error ProgramNeedsUpgrade(uint16 version, uint16 stylusVersion);
-    error ProgramExpired(uint64 ageInSeconds);
-    error ProgramUpToDate();
-    error ProgramKeepaliveTooSoon(uint64 ageInSeconds);
-    error ProgramInsufficientValue(uint256 have, uint256 want);
-}
diff --git a/ArbWasmCache.sol b/ArbWasmCache.sol
deleted file mode 100644
index fc22ac2..0000000
--- a/ArbWasmCache.sol
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright 2022-2024, Offchain Labs, Inc.
-// For license information, see https://github.com/OffchainLabs/nitro/blob/master/LICENSE
-// SPDX-License-Identifier: BUSL-1.1
-
-pragma solidity >=0.4.21 <0.9.0;
-
-/**
- * @title Methods for managing Stylus caches
- * @notice Precompiled contract that exists in every Arbitrum chain at 0x0000000000000000000000000000000000000072.
- */
-interface ArbWasmCache {
-    /// @notice See if the user is a cache manager.
-    function isCacheManager(
-        address manager
-    ) external view returns (bool);
-
-    /// @notice Retrieve all address managers.
-    /// @return managers the list of managers.
-    function allCacheManagers() external view returns (address[] memory managers);
-
-    /// @dev Deprecated, replaced with cacheProgram
-    function cacheCodehash(
-        bytes32 codehash
-    ) external;
-
-    /// @notice Caches all programs with a codehash equal to the given address.
-    /// @notice Reverts if the programs have expired.
-    /// @notice Caller must be a cache manager or chain owner.
-    /// @notice If you're looking for how to bid for position, interact with the chain's cache manager contract.
-    function cacheProgram(
-        address addr
-    ) external;
-
-    /// @notice Evicts all programs with the given codehash.
-    /// @notice Caller must be a cache manager or chain owner.
-    function evictCodehash(
-        bytes32 codehash
-    ) external;
-
-    /// @notice Gets whether a program is cached. Note that the program may be expired.
-    function codehashIsCached(
-        bytes32 codehash
-    ) external view returns (bool);
-
-    event UpdateProgramCache(address indexed manager, bytes32 indexed codehash, bool cached);
-}
diff --git a/LICENSE.md b/LICENSE.md
new file mode 100644
index 0000000..42c819a
--- /dev/null
+++ b/LICENSE.md
@@ -0,0 +1,116 @@
+Business Source License 1.1
+
+License text copyright (c) 2017 MariaDB Corporation Ab, All Rights Reserved.
+"Business Source License" is a trademark of MariaDB Corporation Ab.
+
+-----------------------------------------------------------------------------
+
+Parameters
+
+Licensor:             Offchain Labs
+
+Licensed Work:        Arbitrum Nitro Contracts
+                      The Licensed Work is (c) 2021-2024 Offchain Labs
+
+Additional Use Grant: You may use the Licensed Work in a production environment solely
+                      to provide a point of interface to permit end users or applications
+                      utilizing the Covered Arbitrum Chains to interact and query the
+                      state of a Covered Arbitrum Chain, including without limitation
+                      validating the correctness of the posted chain state, or to deploy
+                      and operate (x) a blockchain that settles to a Covered Arbitrum Chain
+                      or (y) a blockchain in accordance with, and subject to, the [Arbitrum
+                      Expansion Program Term of Use](https://docs.arbitrum.foundation/aep/ArbitrumExpansionProgramTerms.pdf). For purposes of this
+                      Additional Use Grant, the "Covered Arbitrum Chains" are 
+                      (a) Arbitrum One (chainid:42161), Arbitrum Nova (chainid:42170), 
+                      Arbitrum Rinkeby testnet/Rinkarby (chainid:421611),Arbitrum Nitro
+                      Goerli testnet (chainid:421613), and Arbitrum Sepolia Testnet
+                      (chainid:421614); (b) any future blockchains authorized to be
+                      designated as Covered Arbitrum Chains by the decentralized autonomous
+                      organization governing the Arbitrum network; and (c) any “Layer 3”
+                      Arbitrum-based blockchain that is built on and settles to another
+                      Covered Arbitrum Chain.
+
+
+
+Change Date:          Dec 31, 2028
+
+Change License:       Apache License Version 2.0
+
+-----------------------------------------------------------------------------
+
+Terms
+
+The Licensor hereby grants you the right to copy, modify, create derivative
+works, redistribute, and make non-production use of the Licensed Work. The
+Licensor may make an Additional Use Grant, above, permitting limited
+production use.
+
+Effective on the Change Date, or the fourth anniversary of the first publicly
+available distribution of a specific version of the Licensed Work under this
+License, whichever comes first, the Licensor hereby grants you rights under
+the terms of the Change License, and the rights granted in the paragraph
+above terminate.
+
+If your use of the Licensed Work does not comply with the requirements
+currently in effect as described in this License, you must purchase a
+commercial license from the Licensor, its affiliated entities, or authorized
+resellers, or you must refrain from using the Licensed Work.
+
+All copies of the original and modified Licensed Work, and derivative works
+of the Licensed Work, are subject to this License. This License applies
+separately for each version of the Licensed Work and the Change Date may vary
+for each version of the Licensed Work released by Licensor.
+
+You must conspicuously display this License on each original or modified copy
+of the Licensed Work. If you receive the Licensed Work in original or
+modified form from a third party, the terms and conditions set forth in this
+License apply to your use of that work.
+
+Any use of the Licensed Work in violation of this License will automatically
+terminate your rights under this License for the current and all other
+versions of the Licensed Work.
+
+This License does not grant you any right in any trademark or logo of
+Licensor or its affiliates (provided that you may use a trademark or logo of
+Licensor as expressly required by this License).
+
+TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE LICENSED WORK IS PROVIDED ON
+AN "AS IS" BASIS. LICENSOR HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS,
+EXPRESS OR IMPLIED, INCLUDING (WITHOUT LIMITATION) WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND
+TITLE.
+
+MariaDB hereby grants you permission to use this License’s text to license
+your works, and to refer to it using the trademark "Business Source License",
+as long as you comply with the Covenants of Licensor below.
+
+-----------------------------------------------------------------------------
+
+Covenants of Licensor
+
+In consideration of the right to use this License’s text and the "Business
+Source License" name and trademark, Licensor covenants to MariaDB, and to all
+other recipients of the licensed work to be provided by Licensor:
+
+1. To specify as the Change License the GPL Version 2.0 or any later version,
+   or a license that is compatible with GPL Version 2.0 or a later version,
+   where "compatible" means that software provided under the Change License can
+   be included in a program with software provided under GPL Version 2.0 or a
+   later version. Licensor may specify additional Change Licenses without
+   limitation.
+
+2. To either: (a) specify an additional grant of rights to use that does not
+   impose any additional restriction on the right granted in this License, as
+   the Additional Use Grant; or (b) insert the text "None".
+
+3. To specify a Change Date.
+
+4. Not to modify this License in any other way.
+
+-----------------------------------------------------------------------------
+
+Notice
+
+The Business Source License (this document, or the "License") is not an Open
+Source license. However, the Licensed Work will eventually be made available
+under an Open Source License, as stated in this License.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..1842cd1
--- /dev/null
+++ b/README.md
@@ -0,0 +1,11 @@
+# Nitro Precompile Interfaces
+
+Solidity interfaces for Arbitrum Nitro precompiled contracts.
+
+## Overview
+
+This repository contains the Solidity interface definitions for Arbitrum Nitro's precompiled contracts.
+
+## License
+
+Licensed under BUSL-1.1. See individual files for specific license information.
diff --git a/foundry.toml b/foundry.toml
new file mode 100644
index 0000000..4e75ba8
--- /dev/null
+++ b/foundry.toml
@@ -0,0 +1,20 @@
+[profile.default]
+src = ''
+
+[fmt]
+line_length = 100
+tab_width = 4
+bracket_spacing = false
+int_types = "long"
+multiline_func_header = "params_first"
+quote_style = "double"
+number_underscore = "preserve"
+hex_underscore = "remove"
+single_line_statement_blocks = "preserve"
+override_spacing = false
+wrap_comments = false
+ignore = []
+contract_new_lines = false
+sort_imports = false
+
+# See more config options https://github.com/foundry-rs/foundry/tree/master/config
\ No newline at end of file
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..14177cc
--- /dev/null
+++ b/package.json
@@ -0,0 +1,24 @@
+{
+  "name": "@arbitrum/nitro-precompile-interfaces",
+  "version": "1.0.0",
+  "description": "Solidity interfaces for Arbitrum Nitro precompiled contracts",
+  "author": "Offchain Labs, Inc.",
+  "license": "BUSL-1.1",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/offchainlabs/nitro-precompile-interfaces.git"
+  },
+  "files": [
+    "*.sol",
+    "README.md",
+    "LICENSE.md"
+  ],
+  "bugs": {
+    "url": "https://github.com/offchainlabs/nitro-precompile-interfaces/issues"
+  },
+  "scripts": {
+    "build": "forge build",
+    "format": "forge fmt"
+  },
+  "private": false
+}
diff --git a/yarn.lock b/yarn.lock
new file mode 100644
index 0000000..fb57ccd
--- /dev/null
+++ b/yarn.lock
@@ -0,0 +1,4 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+