diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4520d77..bdfe840 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,6 +35,8 @@ jobs:
       - name: Lint
         run: npm run lint
       - name: Test
+        env:
+          NODE_OPTIONS: "--max-old-space-size=8192"
         run: npm test
       - name: Report Coverage
         uses: codecov/codecov-action@v4.5.0
diff --git a/test/integration.js b/test/integration.js
index 99376c5..99d614f 100644
--- a/test/integration.js
+++ b/test/integration.js
@@ -176,7 +176,7 @@ describe('duel', () => {
     assert.equal(statusEsm, 0)
   })
 
-  it.skip('supports both builds output to directories', async t => {
+  it('supports both builds output to directories', async t => {
     const spy = t.mock.method(global.console, 'log')
 
     t.after(async () => {
@@ -191,7 +191,7 @@ describe('duel', () => {
     assert.ok(existsSync(resolve(proDist, 'cjs/index.cjs')))
   })
 
-  it.skip('supports import attributes and ts import assertion resolution mode', async t => {
+  it('supports import attributes and ts import assertion resolution mode', async t => {
     const spy = t.mock.method(global.console, 'log')
 
     t.after(async () => {
@@ -204,7 +204,7 @@ describe('duel', () => {
     )
   })
 
-  it.skip('works as a cli script', () => {
+  it('works as a cli script', () => {
     const resp = execSync(`${resolve('./src/duel.js')} -h`, {
       shell,
       cwd: resolve(__dirname, '..'),
@@ -213,7 +213,7 @@ describe('duel', () => {
     assert.ok(resp.toString().indexOf('Options:') > -1)
   })
 
-  it.skip('reports compilation errors during a build', async t => {
+  it('reports compilation errors during a build', async t => {
     const spy = t.mock.method(global.console, 'log')
     const spyExit = t.mock.method(process, 'exit')
 
@@ -234,7 +234,7 @@ describe('duel', () => {
     assert.equal(spy.mock.calls[1].arguments[1], 'Compilation errors found.')
   })
 
-  it.skip('reports an error when no package.json file found', async t => {
+  it('reports an error when no package.json file found', async t => {
     const spy = t.mock.method(global.console, 'log')
 
     t.after(async () => {
diff --git a/test/integrationOther.js b/test/integrationOther.js
new file mode 100644
index 0000000..65ca69d
--- /dev/null
+++ b/test/integrationOther.js
@@ -0,0 +1,101 @@
+import { describe, it, before } from 'node:test'
+import assert from 'node:assert/strict'
+import { fileURLToPath } from 'node:url'
+import { dirname, resolve, join } from 'node:path'
+import { rm } from 'node:fs/promises'
+import { existsSync } from 'node:fs'
+import { execSync } from 'node:child_process'
+import { platform } from 'node:process'
+
+import { duel } from '../src/duel.js'
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = dirname(__filename)
+const plain = resolve(__dirname, '__fixtures__/plain')
+const project = resolve(__dirname, '__fixtures__/project')
+const esmProject = resolve(__dirname, '__fixtures__/esmProject')
+const plainDist = join(plain, 'dist')
+const proDist = join(project, 'dist')
+const esmDist = join(esmProject, 'dist')
+const errDist = resolve(__dirname, '__fixtures__/compileErrors/dist')
+const rmDist = async distPath => {
+  await rm(distPath, { recursive: true, force: true })
+}
+const shell = platform === 'win32'
+
+describe('duel', () => {
+  before(async () => {
+    await rmDist(proDist)
+    await rmDist(esmDist)
+    await rmDist(errDist)
+    await rmDist(plainDist)
+  })
+
+  it.skip('supports both builds output to directories', async t => {
+    const spy = t.mock.method(global.console, 'log')
+
+    t.after(async () => {
+      await rmDist(proDist)
+    })
+    await duel(['-p', 'test/__fixtures__/project/tsconfig.json', '-k', project, '-d'])
+
+    assert.ok(
+      spy.mock.calls[3].arguments[0].startsWith('Successfully created a dual CJS build'),
+    )
+    assert.ok(existsSync(resolve(proDist, 'esm/index.js')))
+    assert.ok(existsSync(resolve(proDist, 'cjs/index.cjs')))
+  })
+
+  it.skip('supports import attributes and ts import assertion resolution mode', async t => {
+    const spy = t.mock.method(global.console, 'log')
+
+    t.after(async () => {
+      await rmDist(plainDist)
+    })
+    await duel(['-p', plain, '-k', plain])
+
+    assert.ok(
+      spy.mock.calls[2].arguments[0].startsWith('Successfully created a dual CJS build'),
+    )
+  })
+
+  it.skip('works as a cli script', () => {
+    const resp = execSync(`${resolve('./src/duel.js')} -h`, {
+      shell,
+      cwd: resolve(__dirname, '..'),
+    })
+
+    assert.ok(resp.toString().indexOf('Options:') > -1)
+  })
+
+  it.skip('reports compilation errors during a build', async t => {
+    const spy = t.mock.method(global.console, 'log')
+    const spyExit = t.mock.method(process, 'exit')
+
+    t.after(async () => {
+      await rmDist(errDist)
+    })
+    spyExit.mock.mockImplementation(number => {
+      throw new Error(`Mocked process.exit: ${number}`)
+    })
+    await assert.rejects(
+      async () => {
+        await duel(['-p', 'test/__fixtures__/compileErrors/tsconfig.json'])
+      },
+      { message: /Mocked process\.exit/ },
+    )
+
+    assert.ok(spyExit.mock.calls[0].arguments > 0)
+    assert.equal(spy.mock.calls[1].arguments[1], 'Compilation errors found.')
+  })
+
+  it.skip('reports an error when no package.json file found', async t => {
+    const spy = t.mock.method(global.console, 'log')
+
+    t.after(async () => {
+      await rmDist(esmDist)
+    })
+    await duel(['-p', 'test/__fixtures__/esmProject/tsconfig.json', '--pkg-dir', '/'])
+    assert.equal(spy.mock.calls[0].arguments[1], 'No package.json file found.')
+  })
+})