diff --git a/.github/actions/cache-evm-artifacts/action.yml b/.github/actions/cache-evm-artifacts/action.yml
index 9fa0527af..67ff4b764 100644
--- a/.github/actions/cache-evm-artifacts/action.yml
+++ b/.github/actions/cache-evm-artifacts/action.yml
@@ -23,7 +23,7 @@ runs:
         # The job that generates the artifacts is responsible for archiving them to the cache tarball. This avoids any
         # conflicts with other caching actions that might have cleaned some of cached contents.
         path: evm-artifacts.tar
-        key: evm-artifacts-${{ runner.os }}-node-${{ steps.resolved-node.outputs.version }}-${{ hashFiles('yarn.lock', 'hardhat.config.ts', 'contracts/**/*.sol') }}
+        key: evm-artifacts-${{ runner.os }}-node-${{ steps.resolved-node.outputs.version }}-${{ hashFiles('yarn.lock', 'hardhat.config.ts', 'foundry.toml', 'contracts/**/*.sol') }}
     - name: Unpack restored EVM artifacts
       if: steps.evm-artifacts-cache.outputs.cache-hit == 'true'
       shell: bash
diff --git a/.github/actions/generate-evm-artifacts/action.yml b/.github/actions/generate-evm-artifacts/action.yml
index 0ae401266..9b2edbff6 100644
--- a/.github/actions/generate-evm-artifacts/action.yml
+++ b/.github/actions/generate-evm-artifacts/action.yml
@@ -16,9 +16,23 @@ runs:
     - name: Install packages
       shell: bash
       run: yarn install --frozen-lockfile
-    - name: Build EVM
+    - name: Build Hardhat
       shell: bash
       run: yarn build-evm
+    - name: Install Foundry
+      uses: foundry-rs/foundry-toolchain@v1
+    - name: Install forge dependencies
+      shell: bash
+      run: forge install
+    - name: Build Foundry
+      shell: bash
+      run: forge build --skip test script
+    - name: Generate Typechain artifacts
+      shell: bash
+      run: npx ts-node scripts/typechainArtifacts.ts
+    - name: Generate Typechain
+      shell: bash
+      run: npx typechain --target ethers-v5 "typechain-artifacts/**/*.json" --out-dir typechain
     - name: Archive EVM artifacts (for caching)
       shell: bash
       env:
diff --git a/.gitignore b/.gitignore
index 147e874f2..2746c1796 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,6 +31,9 @@ out
 zkout
 cache-foundry
 
+# Typechain
+typechain-artifacts
+
 # Upgradeability files
 .openzeppelin
 
diff --git a/hardhat.config.ts b/hardhat.config.ts
index 12e7d866d..40ffc98fa 100644
--- a/hardhat.config.ts
+++ b/hardhat.config.ts
@@ -1,12 +1,14 @@
 const { subtask } = require("hardhat/config");
 const { TASK_COMPILE_SOLIDITY_GET_SOURCE_PATHS } = require("hardhat/builtin-tasks/task-names");
 
+const isTest = process.env.IS_TEST === "true" || process.env.CI === "true";
+
 subtask(TASK_COMPILE_SOLIDITY_GET_SOURCE_PATHS).setAction(async (_: any, __: any, runSuper: any) => {
   const paths = await runSuper();
 
   // Filter out files that cause problems when using "paris" hardfork (currently used to compile everything when IS_TEST=true)
   // Reference: https://github.com/NomicFoundation/hardhat/issues/2306#issuecomment-1039452928
-  if (process.env.IS_TEST === "true") {
+  if (isTest) {
     return paths.filter((p: any) => {
       return (
         !p.includes("contracts/periphery/mintburn") &&
@@ -28,7 +30,6 @@ import { getNodeUrl } from "./utils";
 
 import "@nomicfoundation/hardhat-verify"; // Must be above hardhat-upgrades
 import "@nomiclabs/hardhat-waffle";
-import "@typechain/hardhat";
 import "@matterlabs/hardhat-zksync-solc";
 import "@matterlabs/hardhat-zksync-verify";
 import "@matterlabs/hardhat-zksync-upgradable";
@@ -70,8 +71,6 @@ const tasks = [
 // eslint-disable-next-line node/no-missing-require
 tasks.forEach((task) => require(`./tasks/${task}`));
 
-const isTest = process.env.IS_TEST === "true";
-
 // To compile with zksolc, `hardhat` must be the default network and its `zksync` property must be true.
 // So we allow the caller to set this environment variable to toggle compiling zk contracts or not.
 // TODO: Figure out way to only compile specific contracts intended to be deployed on ZkSync (e.g. ZkSync_SpokePool) if
@@ -82,6 +81,7 @@ const solcVersion = "0.8.30";
 
 // Hardhat 2.14.0 doesn't support prague yet, so we use paris instead (need to upgrade to v3 to use prague)
 const evmVersion = isTest ? "paris" : "prague";
+const revertStrings = isTest ? "debug" : "strip";
 
 // Compilation settings are overridden for large contracts to allow them to compile without going over the bytecode
 // limit.
@@ -91,7 +91,7 @@ const LARGE_CONTRACT_COMPILER_SETTINGS = {
     optimizer: { enabled: true, runs: 800 },
     viaIR: true,
     evmVersion,
-    debug: { revertStrings: isTest ? "debug" : "strip" },
+    debug: { revertStrings },
   },
 };
 const DEFAULT_CONTRACT_COMPILER_SETTINGS = {
@@ -101,7 +101,7 @@ const DEFAULT_CONTRACT_COMPILER_SETTINGS = {
     viaIR: true,
     evmVersion,
     // Only strip revert strings if not testing or in ci.
-    debug: { revertStrings: isTest ? "debug" : "strip" },
+    debug: { revertStrings },
   },
 };
 // This is only used by Blast_SpokePool for now, as it's the largest bytecode-wise
@@ -111,7 +111,7 @@ const LARGEST_CONTRACT_COMPILER_SETTINGS = {
     optimizer: { enabled: true, runs: 50 },
     viaIR: true,
     evmVersion,
-    debug: { revertStrings: isTest ? "debug" : "strip" },
+    debug: { revertStrings },
   },
 };
 
@@ -396,10 +396,6 @@ const config: HardhatUserConfig = {
     ],
   },
   namedAccounts: { deployer: 0 },
-  typechain: {
-    outDir: "./typechain",
-    target: "ethers-v5",
-  },
   paths: {
     tests: "./test/evm/hardhat",
   },
diff --git a/package.json b/package.json
index 94dbd4279..07f10e931 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@across-protocol/contracts",
-  "version": "4.1.17-beta.4",
+  "version": "4.1.19-alpha.3",
   "author": "UMA Team",
   "license": "AGPL-3.0-only",
   "repository": {
@@ -95,7 +95,6 @@
     "@openzeppelin/hardhat-upgrades": "^1.22.0",
     "@pinata/sdk": "^2.1.0",
     "@typechain/ethers-v5": "^11.0.0",
-    "@typechain/hardhat": "^8.0.0",
     "@types/bn.js": "^5.1.0",
     "@types/chai": "^4.3.5",
     "@types/mocha": "^9.0.0",
diff --git a/script/mintburn/cctp/113DeploySponsoredCCTPSrcPeriphery.sol b/script/mintburn/cctp/113DeploySponsoredCCTPSrcPeriphery.s.sol
similarity index 100%
rename from script/mintburn/cctp/113DeploySponsoredCCTPSrcPeriphery.sol
rename to script/mintburn/cctp/113DeploySponsoredCCTPSrcPeriphery.s.sol
diff --git a/script/mintburn/cctp/114DeploySponsoredCCTPDstPeriphery.sol b/script/mintburn/cctp/114DeploySponsoredCCTPDstPeriphery.s.sol
similarity index 100%
rename from script/mintburn/cctp/114DeploySponsoredCCTPDstPeriphery.sol
rename to script/mintburn/cctp/114DeploySponsoredCCTPDstPeriphery.s.sol
diff --git a/scripts/typechainArtifacts.ts b/scripts/typechainArtifacts.ts
new file mode 100644
index 000000000..73e1c9b70
--- /dev/null
+++ b/scripts/typechainArtifacts.ts
@@ -0,0 +1,46 @@
+import fs from "fs";
+import path from "path";
+import fg from "fast-glob";
+
+const OUT_DIR = "out";
+const STAGE_DIR = "typechain-artifacts";
+
+function main() {
+  if (fs.existsSync(STAGE_DIR)) {
+    fs.rmdirSync(STAGE_DIR, { recursive: true });
+  }
+  fs.mkdirSync(STAGE_DIR, { recursive: true });
+
+  const files = fg.sync([`${OUT_DIR}/**/*.json`, `!${OUT_DIR}/build-info/**`], {
+    dot: false,
+    onlyFiles: true,
+  });
+
+  const seen = new Map<string, string>(); // contractName -> first file path kept
+  const dups: Array<{ name: string; kept: string; dropped: string }> = [];
+
+  for (const file of files) {
+    const name = file.split("/").pop()?.split(".")[0];
+    if (!name) continue;
+
+    const already = seen.get(name);
+    if (already) {
+      dups.push({ name, kept: already, dropped: file });
+      continue;
+    }
+
+    seen.set(name, file);
+
+    // One artifact per name => stable TypeChain inputs
+    const dest = path.join(STAGE_DIR, `${name}.json`);
+    fs.copyFileSync(file, dest);
+  }
+
+  if (dups.length > 0) {
+    console.warn(`\nTypeChain dedupe: dropped ${dups.length} duplicate contract names:\n`);
+  }
+
+  console.log(`Staged ${seen.size} unique artifacts into ${STAGE_DIR}/`);
+}
+
+main();
diff --git a/test/evm/hardhat/chain-adapters/Arbitrum_Adapter.ts b/test/evm/hardhat/chain-adapters/Arbitrum_Adapter.ts
index 57c31b866..51c110e28 100644
--- a/test/evm/hardhat/chain-adapters/Arbitrum_Adapter.ts
+++ b/test/evm/hardhat/chain-adapters/Arbitrum_Adapter.ts
@@ -27,8 +27,8 @@ import {
   MessagingReceiptStructOutput,
   OFTReceiptStructOutput,
   SendParamStruct,
-} from "../../../../typechain/contracts/interfaces/IOFT.sol/IOFT";
-import { IOFT__factory } from "../../../../typechain/factories/contracts/interfaces/IOFT.sol/IOFT__factory";
+} from "../../../../typechain/IOFT";
+import { IOFT__factory } from "../../../../typechain/factories/IOFT__factory";
 import { hubPoolFixture, enableTokensForLP } from "../fixtures/HubPool.Fixture";
 import { constructSingleChainTree } from "../MerkleLib.utils";
 import { CIRCLE_DOMAIN_IDs } from "../../../../deploy/consts";
diff --git a/test/evm/hardhat/chain-adapters/Polygon_Adapter.ts b/test/evm/hardhat/chain-adapters/Polygon_Adapter.ts
index f8f3850a6..05500d63f 100644
--- a/test/evm/hardhat/chain-adapters/Polygon_Adapter.ts
+++ b/test/evm/hardhat/chain-adapters/Polygon_Adapter.ts
@@ -32,8 +32,8 @@ import {
   MessagingReceiptStructOutput,
   OFTReceiptStructOutput,
   SendParamStruct,
-} from "../../../../typechain/contracts/interfaces/IOFT.sol/IOFT";
-import { IOFT__factory } from "../../../../typechain/factories/contracts/interfaces/IOFT.sol/IOFT__factory";
+} from "../../../../typechain/IOFT";
+import { IOFT__factory } from "../../../../typechain/factories/IOFT__factory";
 import { CIRCLE_DOMAIN_IDs } from "../../../../deploy/consts";
 import { AdapterStore, AdapterStore__factory } from "../../../../typechain";
 import { CHAIN_IDs } from "@across-protocol/constants";
diff --git a/test/evm/hardhat/chain-specific-spokepools/Arbitrum_SpokePool.ts b/test/evm/hardhat/chain-specific-spokepools/Arbitrum_SpokePool.ts
index 690d3a206..aa720e344 100644
--- a/test/evm/hardhat/chain-specific-spokepools/Arbitrum_SpokePool.ts
+++ b/test/evm/hardhat/chain-specific-spokepools/Arbitrum_SpokePool.ts
@@ -26,8 +26,8 @@ import {
   MessagingReceiptStructOutput,
   OFTReceiptStructOutput,
   SendParamStruct,
-} from "../../../../typechain/contracts/interfaces/IOFT.sol/IOFT";
-import { IOFT__factory } from "../../../../typechain/factories/contracts/interfaces/IOFT.sol/IOFT__factory";
+} from "../../../../typechain/IOFT";
+import { IOFT__factory } from "../../../../typechain/factories/IOFT__factory";
 import { CHAIN_IDs } from "@across-protocol/constants";
 
 let hubPool: Contract, arbitrumSpokePool: Contract, dai: Contract, weth: Contract, l2UsdtContract: Contract;
diff --git a/test/evm/hardhat/chain-specific-spokepools/Polygon_SpokePool.ts b/test/evm/hardhat/chain-specific-spokepools/Polygon_SpokePool.ts
index b3989e5c3..01b37e101 100644
--- a/test/evm/hardhat/chain-specific-spokepools/Polygon_SpokePool.ts
+++ b/test/evm/hardhat/chain-specific-spokepools/Polygon_SpokePool.ts
@@ -25,13 +25,13 @@ import {
 } from "../../../../utils/utils";
 import { getOftEid } from "../../../../utils/utils";
 import { CHAIN_IDs } from "@across-protocol/constants";
-import { IOFT__factory } from "../../../../typechain/factories/contracts/interfaces/IOFT.sol/IOFT__factory";
+import { IOFT__factory } from "../../../../typechain/factories/IOFT__factory";
 import {
   MessagingFeeStructOutput,
   MessagingReceiptStructOutput,
   OFTReceiptStructOutput,
   SendParamStruct,
-} from "../../../../typechain/contracts/interfaces/IOFT.sol/IOFT";
+} from "../../../../typechain/IOFT";
 import { hre } from "../../../../utils/utils.hre";
 import { hubPoolFixture } from "../fixtures/HubPool.Fixture";
 import { buildRelayerRefundLeaves, buildRelayerRefundTree, constructSingleRelayerRefundTree } from "../MerkleLib.utils";
diff --git a/yarn.lock b/yarn.lock
index 5b1feb8a7..c8334063a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3993,13 +3993,6 @@
   dependencies:
     ethers "^5.0.2"
 
-"@typechain/hardhat@^8.0.0":
-  version "8.0.0"
-  resolved "https://registry.yarnpkg.com/@typechain/hardhat/-/hardhat-8.0.0.tgz#60568b7a2d0260cc741fb0830a8caee8eb06ac64"
-  integrity sha512-XUVbqlMx8tJTOmzZCD/r196CidtNWAnTBZRcYxjLTKgcJMvc/kHQpWBnVMMB5QHxVKpYpCiz8g07FYCpG8rrjA==
-  dependencies:
-    fs-extra "^9.1.0"
-
 "@types/async-eventemitter@^0.2.1":
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/@types/async-eventemitter/-/async-eventemitter-0.2.1.tgz#f8e6280e87e8c60b2b938624b0a3530fb3e24712"
@@ -9710,7 +9703,7 @@ fs-extra@^8.1.0:
     jsonfile "^4.0.0"
     universalify "^0.1.0"
 
-fs-extra@^9.0.0, fs-extra@^9.1.0:
+fs-extra@^9.0.0:
   version "9.1.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-9.1.0.tgz#5954460c764a8da2094ba3554bf839e6b9a7c86d"
   integrity sha512-hcg3ZmepS30/7BSFqRvoo3DOMQu7IjqxO5nCDt+zM9XWjb33Wg7ziNT+Qvqbuc3+gWpzO02JubVyk2G4Zvo1OQ==