diff --git a/bun.lockb b/bun.lockb
index 87070a2..0abc4a4 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/jest.config.js b/jest.config.js
new file mode 100644
index 0000000..c85834c
--- /dev/null
+++ b/jest.config.js
@@ -0,0 +1,19 @@
+// jest.config.js
+/** @type {import('jest').Config} */
+module.exports = {
+  testEnvironment: "node",
+  roots: ["./tests"],
+  coveragePathIgnorePatterns: ["node_modules", "mocks"],
+  collectCoverage: true,
+  coverageReporters: ["json", "lcov", "text", "clover", "json-summary"],
+  reporters: ["default", "jest-junit"],
+  coverageDirectory: "coverage",
+  verbose: true,
+  transformIgnorePatterns: [],
+  transform: {
+    "^.+\\.[j|t]s$": "@swc/jest",
+  },
+  moduleNameMapper: {
+    "@octokit/webhooks-methods": "<rootDir>/node_modules/@octokit/webhooks-methods/dist-node/index.js",
+  },
+};
diff --git a/jest.config.json b/jest.config.json
deleted file mode 100644
index cf62beb..0000000
--- a/jest.config.json
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-  "preset": "ts-jest",
-  "testEnvironment": "node",
-  "roots": ["./tests"],
-  "coveragePathIgnorePatterns": ["node_modules", "mocks"],
-  "collectCoverage": true,
-  "coverageReporters": ["json", "lcov", "text", "clover", "json-summary"],
-  "reporters": ["default", "jest-junit"],
-  "coverageDirectory": "coverage"
-}
diff --git a/package.json b/package.json
index 0798a84..828c06e 100644
--- a/package.json
+++ b/package.json
@@ -23,9 +23,10 @@
     "proxy": "tsx src/proxy.ts",
     "knip": "knip --config .github/knip.ts",
     "knip-ci": "knip --no-exit-code --reporter json --config .github/knip.ts",
-    "test": "jest test",
+    "test": "jest --coverage",
     "plugin:hello-world": "tsx tests/__mocks__/hello-world-plugin.ts",
-    "setup-kv": "bun --env-file=.dev.vars deploy/setup_kv_namespace.ts"
+    "setup-kv": "bun --env-file=.dev.vars deploy/setup_kv_namespace.ts",
+    "sdk:build": "tsup src/sdk/index.ts --format cjs,esm"
   },
   "keywords": [
     "typescript",
@@ -43,6 +44,7 @@
     "@octokit/plugin-throttling": "^9.3.0",
     "@octokit/types": "^13.5.0",
     "@octokit/webhooks": "^13.2.7",
+    "@octokit/webhooks-methods": "^5.1.0",
     "@octokit/webhooks-types": "^7.5.1",
     "@sinclair/typebox": "^0.32.5",
     "dotenv": "^16.4.4",
@@ -52,6 +54,10 @@
     "yaml": "^2.4.1"
   },
   "devDependencies": {
+    "@swc/core": "^1.6.5",
+    "@swc/jest": "^0.2.36",
+    "tsup": "^8.1.0",
+    "esbuild-jest": "^0.5.0",
     "@jest/globals": "^29.7.0",
     "@types/jest": "^29.5.12",
     "jest": "^29.7.0",
@@ -70,7 +76,7 @@
     "@typescript-eslint/eslint-plugin": "^7.0.1",
     "@typescript-eslint/parser": "^7.0.1",
     "cspell": "^8.4.0",
-    "esbuild": "^0.20.1",
+    "esbuild": "^0.21.5",
     "eslint": "^8.56.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-prettier": "^5.1.3",
@@ -83,7 +89,7 @@
     "toml": "3.0.0",
     "tomlify-j0.4": "3.0.0",
     "tsx": "^4.7.1",
-    "typescript": "^5.3.3",
+    "typescript": "~5.5.0",
     "wrangler": "3.58.0"
   },
   "lint-staged": {
@@ -99,6 +105,5 @@
     "extends": [
       "@commitlint/config-conventional"
     ]
-  },
-  "packageManager": "bun@1.1.0"
+  }
 }
diff --git a/src/sdk/context.ts b/src/sdk/context.ts
index 3d880d0..7f59e34 100644
--- a/src/sdk/context.ts
+++ b/src/sdk/context.ts
@@ -1,12 +1,12 @@
 import { EmitterWebhookEvent as WebhookEvent, EmitterWebhookEventName as WebhookEventName } from "@octokit/webhooks";
-import { Octokit } from "@octokit/rest";
+import { customOctokit } from "./octokit";
 
 export interface Context<TConfig = unknown, TEnv = unknown, TSupportedEvents extends WebhookEventName = WebhookEventName> {
   eventName: TSupportedEvents;
   payload: {
     [K in TSupportedEvents]: K extends WebhookEventName ? WebhookEvent<K> : never;
   }[TSupportedEvents]["payload"];
-  octokit: InstanceType<typeof Octokit>;
+  octokit: InstanceType<typeof customOctokit>;
   config: TConfig;
   env: TEnv;
   logger: {
diff --git a/src/sdk/octokit.ts b/src/sdk/octokit.ts
new file mode 100644
index 0000000..31ed90a
--- /dev/null
+++ b/src/sdk/octokit.ts
@@ -0,0 +1,27 @@
+import { Octokit } from "@octokit/core";
+import { RequestOptions } from "@octokit/types";
+import { paginateRest } from "@octokit/plugin-paginate-rest";
+import { restEndpointMethods } from "@octokit/plugin-rest-endpoint-methods";
+import { retry } from "@octokit/plugin-retry";
+import { throttling } from "@octokit/plugin-throttling";
+
+const defaultOptions = {
+  throttle: {
+    onAbuseLimit: (retryAfter: number, options: RequestOptions, octokit: Octokit) => {
+      octokit.log.warn(`Abuse limit hit with "${options.method} ${options.url}", retrying in ${retryAfter} seconds.`);
+      return true;
+    },
+    onRateLimit: (retryAfter: number, options: RequestOptions, octokit: Octokit) => {
+      octokit.log.warn(`Rate limit hit with "${options.method} ${options.url}", retrying in ${retryAfter} seconds.`);
+      return true;
+    },
+    onSecondaryRateLimit: (retryAfter: number, options: RequestOptions, octokit: Octokit) => {
+      octokit.log.warn(`Secondary rate limit hit with "${options.method} ${options.url}", retrying in ${retryAfter} seconds.`);
+      return true;
+    },
+  },
+};
+
+export const customOctokit = Octokit.plugin(throttling, retry, paginateRest, restEndpointMethods).defaults((instanceOptions: object) => {
+  return Object.assign({}, defaultOptions, instanceOptions);
+});
diff --git a/src/sdk/server.ts b/src/sdk/server.ts
index 52a00e7..bb19c73 100644
--- a/src/sdk/server.ts
+++ b/src/sdk/server.ts
@@ -1,7 +1,7 @@
 import { Hono } from "hono";
 import { HTTPException } from "hono/http-exception";
 import { Context } from "./context";
-import { customOctokit } from "../github/github-client";
+import { customOctokit } from "./octokit";
 import { EmitterWebhookEventName as WebhookEventName } from "@octokit/webhooks";
 import { verifySignature } from "./signature";
 import { UBIQUIBOT_KERNEL_PUBLIC_KEY } from "./constants";
@@ -32,10 +32,16 @@ export async function createPlugin<TConfig = unknown, TEnv = unknown, TSupported
     const signature = payload.signature;
     delete payload.signature;
     if (!(await verifySignature(options?.ubiquibotKernelPublicKey || UBIQUIBOT_KERNEL_PUBLIC_KEY, payload, signature))) {
-      console.error("Invalid signature");
       throw new HTTPException(400, { message: "Invalid signature" });
     }
 
+    try {
+      new customOctokit({ auth: payload.authToken });
+    } catch (error) {
+      console.error("SDK ERROR", error);
+      throw new HTTPException(500, { message: "Unexpected error" });
+    }
+
     const context: Context<TConfig, TEnv, TSupportedEvents> = {
       eventName: payload.eventName,
       payload: payload.payload,
@@ -52,7 +58,6 @@ export async function createPlugin<TConfig = unknown, TEnv = unknown, TSupported
     };
 
     try {
-      console.log("CALLING HANDLER");
       const result = await handler(context);
       return ctx.json({ stateId: payload.stateId, output: result });
     } catch (error) {
diff --git a/src/sdk/signature.ts b/src/sdk/signature.ts
index 356ed35..8981c12 100644
--- a/src/sdk/signature.ts
+++ b/src/sdk/signature.ts
@@ -4,7 +4,7 @@ export async function verifySignature(publicKeyPem: string, payload: unknown, si
 
   const publicKey = await crypto.subtle.importKey(
     "spki",
-    binaryDer.buffer,
+    binaryDer,
     {
       name: "RSASSA-PKCS1-v1_5",
       hash: "SHA-256",
diff --git a/src/worker.ts b/src/worker.ts
index 4ccc3ac..b1dd631 100644
--- a/src/worker.ts
+++ b/src/worker.ts
@@ -20,6 +20,7 @@ export default {
         pluginChainState: new CloudflareKV(env.PLUGIN_CHAIN_STATE),
       });
       bindHandlers(eventHandler);
+      console.log("CALLING verifyAndReceive");
       await eventHandler.webhooks.verifyAndReceive({ id, name: eventName, payload: await request.text(), signature: signatureSHA256 });
       return new Response("ok\n", { status: 200, headers: { "content-type": "text/plain" } });
     } catch (error) {
@@ -36,6 +37,8 @@ function handleUncaughtError(error: unknown) {
     const err = error.errors[0];
     errorMessage = err.message ? `${err.name}: ${err.message}` : `Error: ${errorMessage}`;
     status = typeof err.status !== "undefined" ? err.status : 500;
+  } else {
+    errorMessage = error instanceof Error ? `${error.name}: ${error.message}` : `Error: ${error}`;
   }
   return new Response(JSON.stringify({ error: errorMessage }), { status: status, headers: { "content-type": "application/json" } });
 }
diff --git a/tests/__mocks__/webhooks.ts b/tests/__mocks__/webhooks.ts
index 855e2f7..01c7102 100644
--- a/tests/__mocks__/webhooks.ts
+++ b/tests/__mocks__/webhooks.ts
@@ -3,6 +3,7 @@
 export class WebhooksMocked {
   constructor(_: unknown) {}
   verifyAndReceive(_: unknown) {
+    console.log("verifyAndReceive");
     return Promise.resolve();
   }
   onAny(_: unknown) {}
diff --git a/tests/configuration.test.ts b/tests/configuration.test.ts
index 3cd03fb..35cad69 100644
--- a/tests/configuration.test.ts
+++ b/tests/configuration.test.ts
@@ -1,4 +1,4 @@
-import { afterAll, afterEach, beforeAll, describe, expect, it, mock } from "bun:test";
+import { afterAll, afterEach, beforeAll, describe, expect, it, jest } from "@jest/globals";
 import { config } from "dotenv";
 import { server } from "./__mocks__/node";
 import { WebhooksMocked } from "./__mocks__/webhooks";
@@ -8,7 +8,7 @@ import { GitHubEventHandler } from "../src/github/github-event-handler";
 
 config({ path: ".dev.vars" });
 
-void mock.module("@octokit/webhooks", () => ({
+void jest.mock("@octokit/webhooks", () => ({
   Webhooks: WebhooksMocked,
 }));
 
diff --git a/tests/events.test.ts b/tests/events.test.ts
index 5180559..cc2bb44 100644
--- a/tests/events.test.ts
+++ b/tests/events.test.ts
@@ -1,5 +1,5 @@
 import { RestEndpointMethodTypes } from "@octokit/plugin-rest-endpoint-methods";
-import { afterAll, afterEach, beforeAll, describe, expect, it, mock, spyOn } from "bun:test";
+import { afterAll, afterEach, beforeAll, describe, expect, it, jest } from "@jest/globals";
 import { config } from "dotenv";
 import { GitHubContext } from "../src/github/github-context";
 import { GitHubEventHandler } from "../src/github/github-event-handler";
@@ -7,7 +7,7 @@ import issueCommentCreated from "../src/github/handlers/issue-comment-created";
 import { server } from "./__mocks__/node";
 import { WebhooksMocked } from "./__mocks__/webhooks";
 
-void mock.module("@octokit/webhooks", () => ({
+void jest.mock("@octokit/webhooks", () => ({
   Webhooks: WebhooksMocked,
 }));
 
@@ -30,7 +30,7 @@ describe("Event related tests", () => {
         return params;
       },
     };
-    const spy = spyOn(issues, "createComment");
+    const spy = jest.spyOn(issues, "createComment");
     await issueCommentCreated({
       id: "",
       key: "issue_comment.created",
diff --git a/tests/main.test.ts b/tests/main.test.ts
index 66be6c4..842788f 100644
--- a/tests/main.test.ts
+++ b/tests/main.test.ts
@@ -56,6 +56,7 @@ describe("Worker tests", () => {
       PRIVATE_KEY: "private-key",
       PLUGIN_CHAIN_STATE: {} as KVNamespace,
     });
+    expect(await res.text()).toEqual("ok\n");
     expect(res.status).toEqual(200);
   });
 
diff --git a/tests/sdk.test.ts b/tests/sdk.test.ts
index 66b1424..7314a88 100644
--- a/tests/sdk.test.ts
+++ b/tests/sdk.test.ts
@@ -106,7 +106,7 @@ describe("SDK tests", () => {
     const data = {
       ...issueCommented,
       stateId: "stateId",
-      authToken: process.env.GITHUB_TOKEN,
+      authToken: "test",
       settings: {
         shouldFail: false,
       },
diff --git a/tsconfig.json b/tsconfig.json
index f4cea3b..4b80629 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -31,7 +31,7 @@
     // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
     // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
     // "typeRoots": [],                                  /* Specify multiple folders that act like `./node_modules/@types`. */
-    "types": ["@cloudflare/workers-types/2023-07-01", "bun"] /* Specify type package names to be included without being referenced in a source file. */,
+    "types": ["@cloudflare/workers-types/2023-07-01"] /* Specify type package names to be included without being referenced in a source file. */,
     // "allowUmdGlobalAccess": true,                     /* Allow accessing UMD globals from modules. */
     "resolveJsonModule": true /* Enable importing .json files */,
     // "noResolve": true,                                /* Disallow `import`s, `require`s or `<reference>`s from expanding the number of files TypeScript should add to a project. */
diff --git a/tsup.config.js b/tsup.config.js
new file mode 100644
index 0000000..fef5aa4
--- /dev/null
+++ b/tsup.config.js
@@ -0,0 +1,9 @@
+import { defineConfig } from "tsup";
+
+export default defineConfig({
+  entry: ["src/sdk/index.ts"],
+  splitting: false,
+  sourcemap: true,
+  clean: true,
+  dts: true,
+});