diff --git a/notebook-renderer-react-sample/package.json b/notebook-renderer-react-sample/package.json
index 645404f5..735eb0a5 100644
--- a/notebook-renderer-react-sample/package.json
+++ b/notebook-renderer-react-sample/package.json
@@ -9,8 +9,6 @@
   "categories": [
     "Other"
   ],
-  "activationEvents": [],
-  "main": "./out/extension/extension.js",
   "contributes": {
     "notebookRenderer": [
       {
diff --git a/notebook-renderer-react-sample/src/client/style.css b/notebook-renderer-react-sample/src/client/style.css
index 404ed8dc..e69de29b 100644
--- a/notebook-renderer-react-sample/src/client/style.css
+++ b/notebook-renderer-react-sample/src/client/style.css
@@ -1,5 +0,0 @@
-.json code {
-  font-family: monospace;
-  font-size: 12px;
-  color: lightblue;
-}
diff --git a/notebook-renderer-react-sample/src/extension/extension.ts b/notebook-renderer-react-sample/src/extension/extension.ts
deleted file mode 100644
index 9836dbdb..00000000
--- a/notebook-renderer-react-sample/src/extension/extension.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-// The module 'vscode' contains the VS Code extensibility API
-// Import the module and reference it with the alias vscode in your code below
-import * as vscode from 'vscode';
-
-
-// This method is called when your extension is activated
-// your extension is activated the very first time the command is executed
-export function activate(context: vscode.ExtensionContext) {
-  
-}
-
-// This method is called when your extension is deactivated
-export function deactivate() { }
diff --git a/notebook-renderer-react-sample/src/extension/tsconfig.json b/notebook-renderer-react-sample/src/extension/tsconfig.json
deleted file mode 100644
index 323dbb50..00000000
--- a/notebook-renderer-react-sample/src/extension/tsconfig.json
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-  "extends": "../tsconfig-base.json",
-  "compilerOptions": {
-    "rootDir": ".",
-    "outDir": "../../out/extension",
-  },
-  "references": []
-}
diff --git a/notebook-renderer-react-sample/src/extension/types/.gitkeep b/notebook-renderer-react-sample/src/extension/types/.gitkeep
deleted file mode 100644
index e69de29b..00000000
diff --git a/notebook-renderer-react-sample/src/test/checkNoTestProvider.ts b/notebook-renderer-react-sample/src/test/checkNoTestProvider.ts
deleted file mode 100644
index 056e4196..00000000
--- a/notebook-renderer-react-sample/src/test/checkNoTestProvider.ts
+++ /dev/null
@@ -1,129 +0,0 @@
-// This script checks that the test provider isn't included in the package.json
-// or extension.ts. The extension provider is given as a tool for development,
-// but should not be published to the marketplace.
-//
-// This script is not super comprehensive, it's just here to prevent simple mistakes.
-
-import * as ts from 'typescript';
-import * as path from 'path';
-import { readFileSync, existsSync, writeFileSync } from 'fs';
-import { EOL } from 'os';
-
-const rootDir = path.resolve(__dirname, '..', '..');
-const packageJson = require('../../package.json');
-
-class DetectedError extends Error {
-  constructor(message: string, public readonly fix: () => void) {
-    super(message);
-  }
-}
-
-const checkNotInExtensionTs = () => {
-  const entrypoint = path.resolve(rootDir, 'src', 'extension', 'extension.ts');
-  if (!existsSync(entrypoint)) {
-    return;
-  }
-
-  const contents = readFileSync(entrypoint, 'utf-8');
-  const program = ts.createSourceFile(
-    path.basename(entrypoint),
-    contents,
-    ts.ScriptTarget.ESNext,
-    true,
-  );
-
-  const removeRegistration = (node: ts.Node) => () => writeFileSync(
-    entrypoint,
-    contents.slice(0, node.pos) + contents.slice(node.end + +(contents[node.end] === ',')),
-  );
-
-  ts.forEachChild(program, function walk(node: ts.Node) {
-    if (
-      ts.isCallExpression(node) &&
-      /(^|\W)registerNotebookContentProvider$/.test(node.expression.getText()) &&
-      node.arguments[1]?.getText().includes('SampleContentProvider')
-    ) {
-      throw new DetectedError(
-        '`registerNotebookContentProvider()` is still called with the SampleContentProvider.',
-        removeRegistration(node),
-      );
-    }
-
-    if (
-      ts.isCallExpression(node) &&
-      /(^|\W)registerNotebookKernel$/.test(node.expression.getText()) &&
-      node.arguments[2]?.getText().includes('SampleKernel')
-    ) {
-      throw new DetectedError(
-        '`registerNotebookKernel()` is still called with the TestKernel.',
-        removeRegistration(node),
-      );
-    }
-
-    ts.forEachChild(node, walk);
-  });
-};
-
-const checkNotInPackageJson = () => {
-  const providers = packageJson.contributes?.notebookProvider ?? [];
-  const testIndex = providers.findIndex(
-    (p: { viewType: string }) => p.viewType === 'test-notebook-renderer',
-  );
-  if (testIndex !== -1) {
-    throw new DetectedError(
-      `The "test-notebook-renderer" is still registered in the contributes section of your package.json.`,
-      () => {
-        providers.splice(testIndex, 1);
-        writeFileSync(
-          path.resolve(rootDir, 'package.json'),
-          JSON.stringify(packageJson, null, 2) + EOL,
-        );
-      },
-    );
-  }
-};
-(() => {
-  if (process.argv.includes('--fix')) {
-    while (true) {
-      try {
-        checkNotInPackageJson();
-        checkNotInExtensionTs();
-      } catch (e) {
-        if (!(e instanceof DetectedError)) {
-          throw e;
-        } else {
-          e.fix();
-          continue;
-        }
-      }
-
-      return console.log('Test provider removed!');
-    }
-  }
-
-  let errors: DetectedError[] = [];
-  for (const check of [checkNotInPackageJson, checkNotInExtensionTs]) {
-    try {
-      check();
-    } catch (e) {
-      if (!(e instanceof DetectedError)) {
-        throw e;
-      }
-
-      errors.push(e);
-    }
-  }
-
-
-  if (!errors.length) {
-    return;
-  }
-
-  const execPath = path.relative(process.cwd(), __filename);
-  console.error(errors.map((e) => e.message).join(' '));
-  console.error('');
-  console.error(
-    'You should remove the test provider before publishing your extension to avoid ' +
-    `conflicts. To fix this automatically, run \`node ${execPath} --fix\``,
-  );
-})();
diff --git a/notebook-renderer-react-sample/src/test/runTest.ts b/notebook-renderer-react-sample/src/test/runTest.ts
deleted file mode 100644
index a629e3e2..00000000
--- a/notebook-renderer-react-sample/src/test/runTest.ts
+++ /dev/null
@@ -1,23 +0,0 @@
-import * as path from 'path';
-
-import { runTests } from 'vscode-test';
-
-async function main() {
-  try {
-    // The folder containing the Extension Manifest package.json
-    // Passed to `--extensionDevelopmentPath`
-    const extensionDevelopmentPath = path.resolve(__dirname, '../../');
-
-    // The path to test runner
-    // Passed to --extensionTestsPath
-    const extensionTestsPath = path.resolve(__dirname, './suite/index');
-
-    // Download VS Code, unzip it and run the integration test
-    await runTests({ extensionDevelopmentPath, extensionTestsPath });
-  } catch (err) {
-    console.error('Failed to run tests');
-    process.exit(1);
-  }
-}
-
-main();
diff --git a/notebook-renderer-react-sample/src/test/suite/extension.test.ts b/notebook-renderer-react-sample/src/test/suite/extension.test.ts
deleted file mode 100644
index ca11bc97..00000000
--- a/notebook-renderer-react-sample/src/test/suite/extension.test.ts
+++ /dev/null
@@ -1,15 +0,0 @@
-import * as assert from 'assert';
-
-// You can import and use all API from the 'vscode' module
-// as well as import your extension to test it
-import * as vscode from 'vscode';
-// import * as myExtension from '../extension';
-
-suite('Extension Test Suite', () => {
-  vscode.window.showInformationMessage('Start all tests.');
-
-  test('Sample test', () => {
-    assert.strictEqual(-1, [1, 2, 3].indexOf(5));
-    assert.strictEqual(-1, [1, 2, 3].indexOf(0));
-  });
-});
diff --git a/notebook-renderer-react-sample/src/test/suite/index.ts b/notebook-renderer-react-sample/src/test/suite/index.ts
deleted file mode 100644
index d82c1e24..00000000
--- a/notebook-renderer-react-sample/src/test/suite/index.ts
+++ /dev/null
@@ -1,37 +0,0 @@
-import * as path from 'path';
-import * as Mocha from 'mocha';
-import * as glob from 'glob';
-
-export function run(): Promise<void> {
-  // Create the mocha test
-  const mocha = new Mocha({
-    ui: 'tdd',
-  });
-
-  const testsRoot = path.resolve(__dirname, '..');
-
-  return new Promise((c, e) => {
-    glob('**/**.test.js', { cwd: testsRoot }, (err, files) => {
-      if (err) {
-        return e(err);
-      }
-
-      // Add files to the test suite
-      files.forEach(f => mocha.addFile(path.resolve(testsRoot, f)));
-
-      try {
-        // Run the mocha test
-        mocha.run(failures => {
-          if (failures > 0) {
-            e(new Error(`${failures} tests failed.`));
-          } else {
-            c();
-          }
-        });
-      } catch (err) {
-        console.error(err);
-        e(err);
-      }
-    });
-  });
-}
diff --git a/notebook-renderer-react-sample/src/test/tsconfig.json b/notebook-renderer-react-sample/src/test/tsconfig.json
deleted file mode 100644
index 0315dd34..00000000
--- a/notebook-renderer-react-sample/src/test/tsconfig.json
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-  "extends": "../tsconfig-base.json",
-  "compilerOptions": {
-    "rootDir": ".",
-    "outDir": "../../out/test",
-  },
-  "references": []
-}
diff --git a/notebook-renderer-react-sample/src/test/types/.gitkeep b/notebook-renderer-react-sample/src/test/types/.gitkeep
deleted file mode 100644
index e69de29b..00000000
diff --git a/notebook-renderer-react-sample/tsconfig.json b/notebook-renderer-react-sample/tsconfig.json
index 01f2bb9b..aa385f69 100644
--- a/notebook-renderer-react-sample/tsconfig.json
+++ b/notebook-renderer-react-sample/tsconfig.json
@@ -3,12 +3,6 @@
   "references": [
     {
       "path": "./src/client"
-    },
-    {
-      "path": "./src/test"
-    },
-    {
-      "path": "./src/extension"
     }
   ]
 }
diff --git a/notebook-renderer-sample/package.json b/notebook-renderer-sample/package.json
index 51d66d91..b9c7449b 100644
--- a/notebook-renderer-sample/package.json
+++ b/notebook-renderer-sample/package.json
@@ -9,8 +9,6 @@
   "categories": [
     "Other"
   ],
-  "activationEvents": [],
-  "main": "./out/extension/extension.js",
   "contributes": {
     "notebookRenderer": [
       {
diff --git a/notebook-renderer-sample/src/extension/extension.ts b/notebook-renderer-sample/src/extension/extension.ts
deleted file mode 100644
index 9836dbdb..00000000
--- a/notebook-renderer-sample/src/extension/extension.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-// The module 'vscode' contains the VS Code extensibility API
-// Import the module and reference it with the alias vscode in your code below
-import * as vscode from 'vscode';
-
-
-// This method is called when your extension is activated
-// your extension is activated the very first time the command is executed
-export function activate(context: vscode.ExtensionContext) {
-  
-}
-
-// This method is called when your extension is deactivated
-export function deactivate() { }
diff --git a/notebook-renderer-sample/src/extension/tsconfig.json b/notebook-renderer-sample/src/extension/tsconfig.json
deleted file mode 100644
index 323dbb50..00000000
--- a/notebook-renderer-sample/src/extension/tsconfig.json
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-  "extends": "../tsconfig-base.json",
-  "compilerOptions": {
-    "rootDir": ".",
-    "outDir": "../../out/extension",
-  },
-  "references": []
-}
diff --git a/notebook-renderer-sample/src/extension/types/.gitkeep b/notebook-renderer-sample/src/extension/types/.gitkeep
deleted file mode 100644
index e69de29b..00000000
diff --git a/notebook-renderer-sample/src/test/checkNoTestProvider.ts b/notebook-renderer-sample/src/test/checkNoTestProvider.ts
deleted file mode 100644
index 056e4196..00000000
--- a/notebook-renderer-sample/src/test/checkNoTestProvider.ts
+++ /dev/null
@@ -1,129 +0,0 @@
-// This script checks that the test provider isn't included in the package.json
-// or extension.ts. The extension provider is given as a tool for development,
-// but should not be published to the marketplace.
-//
-// This script is not super comprehensive, it's just here to prevent simple mistakes.
-
-import * as ts from 'typescript';
-import * as path from 'path';
-import { readFileSync, existsSync, writeFileSync } from 'fs';
-import { EOL } from 'os';
-
-const rootDir = path.resolve(__dirname, '..', '..');
-const packageJson = require('../../package.json');
-
-class DetectedError extends Error {
-  constructor(message: string, public readonly fix: () => void) {
-    super(message);
-  }
-}
-
-const checkNotInExtensionTs = () => {
-  const entrypoint = path.resolve(rootDir, 'src', 'extension', 'extension.ts');
-  if (!existsSync(entrypoint)) {
-    return;
-  }
-
-  const contents = readFileSync(entrypoint, 'utf-8');
-  const program = ts.createSourceFile(
-    path.basename(entrypoint),
-    contents,
-    ts.ScriptTarget.ESNext,
-    true,
-  );
-
-  const removeRegistration = (node: ts.Node) => () => writeFileSync(
-    entrypoint,
-    contents.slice(0, node.pos) + contents.slice(node.end + +(contents[node.end] === ',')),
-  );
-
-  ts.forEachChild(program, function walk(node: ts.Node) {
-    if (
-      ts.isCallExpression(node) &&
-      /(^|\W)registerNotebookContentProvider$/.test(node.expression.getText()) &&
-      node.arguments[1]?.getText().includes('SampleContentProvider')
-    ) {
-      throw new DetectedError(
-        '`registerNotebookContentProvider()` is still called with the SampleContentProvider.',
-        removeRegistration(node),
-      );
-    }
-
-    if (
-      ts.isCallExpression(node) &&
-      /(^|\W)registerNotebookKernel$/.test(node.expression.getText()) &&
-      node.arguments[2]?.getText().includes('SampleKernel')
-    ) {
-      throw new DetectedError(
-        '`registerNotebookKernel()` is still called with the TestKernel.',
-        removeRegistration(node),
-      );
-    }
-
-    ts.forEachChild(node, walk);
-  });
-};
-
-const checkNotInPackageJson = () => {
-  const providers = packageJson.contributes?.notebookProvider ?? [];
-  const testIndex = providers.findIndex(
-    (p: { viewType: string }) => p.viewType === 'test-notebook-renderer',
-  );
-  if (testIndex !== -1) {
-    throw new DetectedError(
-      `The "test-notebook-renderer" is still registered in the contributes section of your package.json.`,
-      () => {
-        providers.splice(testIndex, 1);
-        writeFileSync(
-          path.resolve(rootDir, 'package.json'),
-          JSON.stringify(packageJson, null, 2) + EOL,
-        );
-      },
-    );
-  }
-};
-(() => {
-  if (process.argv.includes('--fix')) {
-    while (true) {
-      try {
-        checkNotInPackageJson();
-        checkNotInExtensionTs();
-      } catch (e) {
-        if (!(e instanceof DetectedError)) {
-          throw e;
-        } else {
-          e.fix();
-          continue;
-        }
-      }
-
-      return console.log('Test provider removed!');
-    }
-  }
-
-  let errors: DetectedError[] = [];
-  for (const check of [checkNotInPackageJson, checkNotInExtensionTs]) {
-    try {
-      check();
-    } catch (e) {
-      if (!(e instanceof DetectedError)) {
-        throw e;
-      }
-
-      errors.push(e);
-    }
-  }
-
-
-  if (!errors.length) {
-    return;
-  }
-
-  const execPath = path.relative(process.cwd(), __filename);
-  console.error(errors.map((e) => e.message).join(' '));
-  console.error('');
-  console.error(
-    'You should remove the test provider before publishing your extension to avoid ' +
-    `conflicts. To fix this automatically, run \`node ${execPath} --fix\``,
-  );
-})();
diff --git a/notebook-renderer-sample/src/test/runTest.ts b/notebook-renderer-sample/src/test/runTest.ts
deleted file mode 100644
index a629e3e2..00000000
--- a/notebook-renderer-sample/src/test/runTest.ts
+++ /dev/null
@@ -1,23 +0,0 @@
-import * as path from 'path';
-
-import { runTests } from 'vscode-test';
-
-async function main() {
-  try {
-    // The folder containing the Extension Manifest package.json
-    // Passed to `--extensionDevelopmentPath`
-    const extensionDevelopmentPath = path.resolve(__dirname, '../../');
-
-    // The path to test runner
-    // Passed to --extensionTestsPath
-    const extensionTestsPath = path.resolve(__dirname, './suite/index');
-
-    // Download VS Code, unzip it and run the integration test
-    await runTests({ extensionDevelopmentPath, extensionTestsPath });
-  } catch (err) {
-    console.error('Failed to run tests');
-    process.exit(1);
-  }
-}
-
-main();
diff --git a/notebook-renderer-sample/src/test/suite/extension.test.ts b/notebook-renderer-sample/src/test/suite/extension.test.ts
deleted file mode 100644
index ca11bc97..00000000
--- a/notebook-renderer-sample/src/test/suite/extension.test.ts
+++ /dev/null
@@ -1,15 +0,0 @@
-import * as assert from 'assert';
-
-// You can import and use all API from the 'vscode' module
-// as well as import your extension to test it
-import * as vscode from 'vscode';
-// import * as myExtension from '../extension';
-
-suite('Extension Test Suite', () => {
-  vscode.window.showInformationMessage('Start all tests.');
-
-  test('Sample test', () => {
-    assert.strictEqual(-1, [1, 2, 3].indexOf(5));
-    assert.strictEqual(-1, [1, 2, 3].indexOf(0));
-  });
-});
diff --git a/notebook-renderer-sample/src/test/suite/index.ts b/notebook-renderer-sample/src/test/suite/index.ts
deleted file mode 100644
index d82c1e24..00000000
--- a/notebook-renderer-sample/src/test/suite/index.ts
+++ /dev/null
@@ -1,37 +0,0 @@
-import * as path from 'path';
-import * as Mocha from 'mocha';
-import * as glob from 'glob';
-
-export function run(): Promise<void> {
-  // Create the mocha test
-  const mocha = new Mocha({
-    ui: 'tdd',
-  });
-
-  const testsRoot = path.resolve(__dirname, '..');
-
-  return new Promise((c, e) => {
-    glob('**/**.test.js', { cwd: testsRoot }, (err, files) => {
-      if (err) {
-        return e(err);
-      }
-
-      // Add files to the test suite
-      files.forEach(f => mocha.addFile(path.resolve(testsRoot, f)));
-
-      try {
-        // Run the mocha test
-        mocha.run(failures => {
-          if (failures > 0) {
-            e(new Error(`${failures} tests failed.`));
-          } else {
-            c();
-          }
-        });
-      } catch (err) {
-        console.error(err);
-        e(err);
-      }
-    });
-  });
-}
diff --git a/notebook-renderer-sample/src/test/tsconfig.json b/notebook-renderer-sample/src/test/tsconfig.json
deleted file mode 100644
index 0315dd34..00000000
--- a/notebook-renderer-sample/src/test/tsconfig.json
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-  "extends": "../tsconfig-base.json",
-  "compilerOptions": {
-    "rootDir": ".",
-    "outDir": "../../out/test",
-  },
-  "references": []
-}
diff --git a/notebook-renderer-sample/src/test/types/.gitkeep b/notebook-renderer-sample/src/test/types/.gitkeep
deleted file mode 100644
index e69de29b..00000000
diff --git a/notebook-renderer-sample/tsconfig.json b/notebook-renderer-sample/tsconfig.json
index 01f2bb9b..aa385f69 100644
--- a/notebook-renderer-sample/tsconfig.json
+++ b/notebook-renderer-sample/tsconfig.json
@@ -3,12 +3,6 @@
   "references": [
     {
       "path": "./src/client"
-    },
-    {
-      "path": "./src/test"
-    },
-    {
-      "path": "./src/extension"
     }
   ]
 }