diff --git a/.github/workflows/_validate.yml b/.github/workflows/_validate.yml
index 638daf98..a7c95325 100644
--- a/.github/workflows/_validate.yml
+++ b/.github/workflows/_validate.yml
@@ -99,6 +99,8 @@ jobs:
       - name: Initialize Terraform CDK configuration
         shell: bash
         working-directory: infra/cdktf
+        env:
+          NODE_OPTIONS: --max-old-space-size=4096
         run: |
           pnpm cdktf get
           pnpm build:tsc
diff --git a/e2e/package.json b/e2e/package.json
index b041e75d..82e617e2 100644
--- a/e2e/package.json
+++ b/e2e/package.json
@@ -4,6 +4,7 @@
   "private": true,
   "scripts": {
     "auth": "pnpm --filter=@flexion/forms-cli cli e2e create-test-session -p ../../packages/server/src/main.db -o ../../e2e/.env",
+    "clean": "rimraf coverage test-results playwright-report",
     "dev": "tsc -w",
     "test:e2e:ci": "pnpm auth && pnpm playwright test --headed",
     "test:e2e:dev": "pnpm auth && pnpm playwright test --ui-port=8080 --ui-host=0.0.0.0"
diff --git a/infra/aws-cdk/package.json b/infra/aws-cdk/package.json
index 160cd385..f156ff31 100644
--- a/infra/aws-cdk/package.json
+++ b/infra/aws-cdk/package.json
@@ -22,6 +22,7 @@
     "build:typescript": "tsc",
     "build:synth": "cdk synth",
     "cdk": "cdk",
+    "clean": "rimraf dist cdk.out tsconfig.tsbuildinfo coverage",
     "test": "echo 'no tests'",
     "watch": "tsc -w"
   },
diff --git a/packages/design/package.json b/packages/design/package.json
index 223ddd2f..0386b52a 100644
--- a/packages/design/package.json
+++ b/packages/design/package.json
@@ -25,7 +25,7 @@
     "build:storybook": "storybook build",
     "build:styles": "gulp update",
     "clean": "pnpm clean:lib && pnpm clean:styles",
-    "clean:lib": "rimraf dist",
+    "clean:lib": "rimraf dist tsconfig.tsbuildinfo tsconfig.build.tsbuildinfo coverage storybook-static",
     "clean:styles": "rimraf static",
     "dev": "run-p dev:*",
     "dev:lib": "vite",
diff --git a/packages/forms/src/blueprint.ts b/packages/forms/src/blueprint.ts
index 5de67c96..d2d7182b 100644
--- a/packages/forms/src/blueprint.ts
+++ b/packages/forms/src/blueprint.ts
@@ -6,7 +6,7 @@ import {
   generatePatternId,
   getPatternMap,
   removeChildPattern,
-} from './pattern';
+} from './pattern.js';
 import {
   type FieldsetPattern,
   type FormSummaryPattern,
@@ -14,8 +14,8 @@ import {
   type PageSetPattern,
   type RepeaterPattern,
   type SequencePattern,
-} from './patterns';
-import { type Blueprint, type FormOutput, type FormSummary } from './types';
+} from './patterns/index.js';
+import { type Blueprint, type FormOutput, type FormSummary } from './types.js';
 
 export const nullBlueprint: Blueprint = {
   summary: {
diff --git a/packages/forms/src/builder/parse-form.ts b/packages/forms/src/builder/parse-form.ts
index df0c497a..96a300d9 100644
--- a/packages/forms/src/builder/parse-form.ts
+++ b/packages/forms/src/builder/parse-form.ts
@@ -1,8 +1,8 @@
 import * as z from 'zod';
 
 import { failure, success, type Result } from '@flexion/forms-common';
-import type { FormConfig } from '../pattern';
-import type { Blueprint } from '../types';
+import type { FormConfig } from '../pattern.js';
+import type { Blueprint } from '../types.js';
 
 /**
  * Parses and validates an object against a form schema defined by the given configuration.
diff --git a/packages/forms/src/pattern.ts b/packages/forms/src/pattern.ts
index 319b909c..606ee8f3 100644
--- a/packages/forms/src/pattern.ts
+++ b/packages/forms/src/pattern.ts
@@ -1,5 +1,4 @@
 import * as r from '@flexion/forms-common';
-import set from 'set-value';
 
 import { type CreatePrompt } from './components.js';
 import { type FormError, type FormErrors } from './error.js';
@@ -249,6 +248,9 @@ export const getFirstPattern = (
 ): Pattern => {
   if (!pattern) {
     pattern = form.patterns[form.root];
+    if (!pattern) {
+      throw new Error(`Root pattern with id ${form.root} not found`);
+    }
   }
   const elemConfig = getPatternConfig(config, pattern.type);
   const children = elemConfig.getChildren(pattern, form.patterns);
diff --git a/packages/forms/src/patterns/attachment/config.ts b/packages/forms/src/patterns/attachment/config.ts
index 2d8486ad..29d61401 100644
--- a/packages/forms/src/patterns/attachment/config.ts
+++ b/packages/forms/src/patterns/attachment/config.ts
@@ -2,7 +2,7 @@ import { z } from 'zod';
 import { enLocale as message } from '@flexion/forms-common';
 import { ParsePatternConfigData, type Pattern } from '../../pattern.js';
 import { safeZodParseFormErrors } from '../../util/zod.js';
-import { attachmentFileTypeMimes } from './file-type-options';
+import { attachmentFileTypeMimes } from './file-type-options.js';
 
 export type AttachmentPattern = Pattern<AttachmentConfigSchema>;
 
diff --git a/packages/forms/src/patterns/attachment/index.ts b/packages/forms/src/patterns/attachment/index.ts
index 70d122e4..f1c887b6 100644
--- a/packages/forms/src/patterns/attachment/index.ts
+++ b/packages/forms/src/patterns/attachment/index.ts
@@ -5,7 +5,7 @@ import { type PatternConfig } from '../../pattern.js';
 import { parseConfigData, type AttachmentPattern } from './config.js';
 import { createPrompt } from './prompt.js';
 import { type AttachmentPatternOutput, parseUserInput } from './response.js';
-import { attachmentFileTypeMimes } from './file-type-options';
+import { attachmentFileTypeMimes } from './file-type-options.js';
 
 export const attachmentConfig: PatternConfig<
   AttachmentPattern,
diff --git a/packages/forms/src/patterns/name/name.test.ts b/packages/forms/src/patterns/name/name.test.ts
index 75ac92d2..856c62e2 100644
--- a/packages/forms/src/patterns/name/name.test.ts
+++ b/packages/forms/src/patterns/name/name.test.ts
@@ -1,5 +1,5 @@
 import { describe, expect, it } from 'vitest';
-import { createNameSchema, nameConfig, type NamePattern } from './index';
+import { createNameSchema, nameConfig, type NamePattern } from './index.js';
 
 describe('NamePattern tests', () => {
   describe('createNameSchema', () => {
diff --git a/packages/forms/src/patterns/package-download/submit.ts b/packages/forms/src/patterns/package-download/submit.ts
index d17800f6..2db6040f 100644
--- a/packages/forms/src/patterns/package-download/submit.ts
+++ b/packages/forms/src/patterns/package-download/submit.ts
@@ -1,11 +1,11 @@
 import { failure, success, type Result } from '@flexion/forms-common';
 
-import { type Blueprint, type FormOutput } from '../..';
-import { createFormOutputFieldData, fillPDF } from '../../documents';
-import { sessionIsComplete } from '../../session';
-import { type SubmitHandler } from '../../submission';
+import { type FormOutput } from '../../index.js';
+import { createFormOutputFieldData, fillPDF } from '../../documents/index.js';
+import { sessionIsComplete } from '../../session.js';
+import { type SubmitHandler } from '../../submission.js';
 
-import { type PackageDownloadPattern } from './index';
+import { type PackageDownloadPattern } from './index.js';
 
 export const downloadPackageHandler: SubmitHandler<
   PackageDownloadPattern
diff --git a/packages/forms/src/patterns/page-set/submit.ts b/packages/forms/src/patterns/page-set/submit.ts
index 15456adc..dad1eb6d 100644
--- a/packages/forms/src/patterns/page-set/submit.ts
+++ b/packages/forms/src/patterns/page-set/submit.ts
@@ -5,10 +5,10 @@ import {
   getPatternSafely,
   aggregatePatternSessionValues,
 } from '../../pattern.js';
-import { type FormSession } from '../../session';
-import { type SubmitHandler } from '../../submission';
-import { type PagePattern } from '../page/config';
-import { type PageSetPattern } from './config';
+import { type FormSession } from '../../session.js';
+import { type SubmitHandler } from '../../submission.js';
+import { type PagePattern } from '../page/config.js';
+import { type PageSetPattern } from './config.js';
 
 const getPage = (formSession: FormSession) => {
   const page = formSession.route?.params.page?.toString();
diff --git a/packages/forms/src/patterns/repeater/submit.ts b/packages/forms/src/patterns/repeater/submit.ts
index b28c7b0e..18fd875a 100644
--- a/packages/forms/src/patterns/repeater/submit.ts
+++ b/packages/forms/src/patterns/repeater/submit.ts
@@ -1,7 +1,7 @@
 import { success } from '@flexion/forms-common';
 
-import { type RepeaterPattern } from '../..';
-import { type SubmitHandler } from '../../submission';
+import { type RepeaterPattern } from '../../index.js';
+import { type SubmitHandler } from '../../submission.js';
 
 export const repeaterAddRowHandler: SubmitHandler<RepeaterPattern> = async (
   context,
@@ -15,7 +15,7 @@ export const repeaterAddRowHandler: SubmitHandler<RepeaterPattern> = async (
       : [];
 
   const initialRepeaterRowData = opts.pattern.data.patterns.reduce(
-    (acc, patternId: string) => {
+    (acc, patternId) => {
       // THIS requires all the patterns to have object not string input values
       // acc[patternId] = {};
 
diff --git a/packages/forms/src/repository/add-document.ts b/packages/forms/src/repository/add-document.ts
index ec1af5ec..b7ad6849 100644
--- a/packages/forms/src/repository/add-document.ts
+++ b/packages/forms/src/repository/add-document.ts
@@ -1,8 +1,8 @@
 import { type Result, failure, success } from '@flexion/forms-common';
 
-import type { ParsedPdf } from '../documents/pdf/parsing-api';
-import type { DocumentFieldMap } from '../documents/types';
-import type { FormRepositoryContext } from '.';
+import type { ParsedPdf } from '../documents/pdf/parsing-api.js';
+import type { DocumentFieldMap } from '../documents/types.js';
+import type { FormRepositoryContext } from './index.js';
 
 export type AddDocument = (
   ctx: FormRepositoryContext,
diff --git a/packages/forms/src/repository/delete-form.ts b/packages/forms/src/repository/delete-form.ts
index eb20b114..a28243ab 100644
--- a/packages/forms/src/repository/delete-form.ts
+++ b/packages/forms/src/repository/delete-form.ts
@@ -1,7 +1,7 @@
 import { type VoidResult, failure, voidSuccess } from '@flexion/forms-common';
 
-import type { FormOutput } from '../types';
-import type { FormRepositoryContext } from '.';
+import type { FormOutput } from '../types.js';
+import type { FormRepositoryContext } from './index.js';
 
 export type DeleteForm = (
   ctx: FormRepositoryContext,
@@ -39,7 +39,7 @@ export const deleteForm: DeleteForm = async (ctx, formId) => {
       .where('id', 'in', documentIds)
       .execute()
       .then(_ => voidSuccess)
-      .catch((error: Error) => {
+      .catch(error => {
         return failure({ message: error.message, code: 'unknown' as const });
       });
   });
diff --git a/packages/forms/src/repository/get-document.ts b/packages/forms/src/repository/get-document.ts
index 63d199c8..f614ae9f 100644
--- a/packages/forms/src/repository/get-document.ts
+++ b/packages/forms/src/repository/get-document.ts
@@ -1,8 +1,8 @@
 import { type Result, failure, success } from '@flexion/forms-common';
 
-import type { ParsedPdf } from '../documents/pdf/parsing-api';
-import type { DocumentFieldMap } from '../documents/types';
-import type { FormRepositoryContext } from '.';
+import type { ParsedPdf } from '../documents/pdf/parsing-api.js';
+import type { DocumentFieldMap } from '../documents/types.js';
+import type { FormRepositoryContext } from './index.js';
 
 export type GetDocument = (
   ctx: FormRepositoryContext,
diff --git a/packages/forms/src/repository/get-form-list.ts b/packages/forms/src/repository/get-form-list.ts
index 4f7d1aa5..fa95d2a4 100644
--- a/packages/forms/src/repository/get-form-list.ts
+++ b/packages/forms/src/repository/get-form-list.ts
@@ -1,4 +1,4 @@
-import type { FormRepositoryContext } from '.';
+import type { FormRepositoryContext } from './index.js';
 import type { JobStatus } from './jobs/types.js';
 
 export type FormListItem = {
diff --git a/packages/forms/src/repository/get-form-session.ts b/packages/forms/src/repository/get-form-session.ts
index b36693ba..a2dfef39 100644
--- a/packages/forms/src/repository/get-form-session.ts
+++ b/packages/forms/src/repository/get-form-session.ts
@@ -1,6 +1,6 @@
 import { type Result, failure, success } from '@flexion/forms-common';
-import { type FormSession, type FormSessionId } from '../session';
-import type { FormRepositoryContext } from '.';
+import { type FormSession, type FormSessionId } from '../session.js';
+import type { FormRepositoryContext } from './index.js';
 
 export type GetFormSession = (
   ctx: FormRepositoryContext,
diff --git a/packages/forms/src/repository/upsert-form-session.ts b/packages/forms/src/repository/upsert-form-session.ts
index a99fe292..76930205 100644
--- a/packages/forms/src/repository/upsert-form-session.ts
+++ b/packages/forms/src/repository/upsert-form-session.ts
@@ -1,6 +1,6 @@
 import { type Result, failure, success } from '@flexion/forms-common';
-import { type FormSession } from '../session';
-import type { FormRepositoryContext } from '.';
+import { type FormSession } from '../session.js';
+import type { FormRepositoryContext } from './index.js';
 
 export type UpsertFormSession = (
   ctx: FormRepositoryContext,
diff --git a/packages/forms/src/services/submit-form.ts b/packages/forms/src/services/submit-form.ts
index 8724ae0c..009a2cd5 100644
--- a/packages/forms/src/services/submit-form.ts
+++ b/packages/forms/src/services/submit-form.ts
@@ -1,14 +1,14 @@
 import { failure, success, type Result } from '@flexion/forms-common';
 
 import { type FormServiceContext } from '../context/index.js';
-import { submitPage } from '../patterns/page-set/submit';
-import { downloadPackageHandler } from '../patterns/package-download/submit';
+import { submitPage } from '../patterns/page-set/submit.js';
+import { downloadPackageHandler } from '../patterns/package-download/submit.js';
 import {
   repeaterAddRowHandler,
   repeaterDeleteRowHandler,
-} from '../patterns/repeater/submit';
+} from '../patterns/repeater/submit.js';
 import { type FormRoute } from '../route-data.js';
-import { SubmissionRegistry } from '../submission';
+import { SubmissionRegistry } from '../submission.js';
 import {
   createFormSession,
   type FormSession,
diff --git a/packages/forms/src/submission.ts b/packages/forms/src/submission.ts
index 8a839222..1a81f2f5 100644
--- a/packages/forms/src/submission.ts
+++ b/packages/forms/src/submission.ts
@@ -7,9 +7,9 @@ import {
   type Pattern,
   type PatternId,
   getPattern,
-} from './pattern';
-import { type FormSession } from './session';
-import { type Blueprint, type DocumentFieldMap } from '.';
+} from './pattern.js';
+import { type FormSession } from './session.js';
+import { type Blueprint, type DocumentFieldMap } from './index.js';
 
 export type SubmitHandlerContext = {
   config: FormConfig;
diff --git a/packages/forms/src/types.ts b/packages/forms/src/types.ts
index d27d6bc9..1a06bdcc 100644
--- a/packages/forms/src/types.ts
+++ b/packages/forms/src/types.ts
@@ -1,5 +1,5 @@
-import { type DocumentFieldMap } from './documents/types';
-import { type PatternId, type PatternMap } from './pattern';
+import { type DocumentFieldMap } from './documents/types.js';
+import { type PatternId, type PatternMap } from './pattern.js';
 
 export type Blueprint = {
   summary: FormSummary;