diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index bdb82ccd4..2f59f1cbd 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -16,7 +16,17 @@ jobs:
             - name: Setup bun
               uses: oven-sh/setup-bun@v1
             - name: Install dependencies
-              run: bun install
+              run: bun install --frozen-lockfile
+            - name: Cache Next.js build
+              uses: actions/cache@v3
+              with:
+                  path: |
+                      ${{ github.workspace }}/.next/cache
+                  # Generate a new cache whenever packages or source files change.
+                  key: ${{ runner.os }}-nextjs-${{ hashFiles('**/bun.lockb') }}-${{ hashFiles('**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx') }}
+                  # If source files changed but packages didn't, rebuild from a prior cache.
+                  restore-keys: |
+                      ${{ runner.os }}-nextjs-${{ hashFiles('**/bun.lockb') }}-
             - name: Build Next.js with next-on-pages
               run: bun run build:cloudflare
             - id: cloudflare
@@ -45,7 +55,7 @@ jobs:
             - name: Setup bun
               uses: oven-sh/setup-bun@v1
             - name: Install dependencies
-              run: bun install
+              run: bun install --frozen-lockfile
             - name: Run visual tests
               run: bun ./tests/visual-testing.ts $DEPLOYMENT_URL
               env:
@@ -64,9 +74,42 @@ jobs:
             - name: Setup bun
               uses: oven-sh/setup-bun@v1
             - name: Install dependencies
-              run: bun install
+              run: bun install --frozen-lockfile
             - name: Run visual tests
               run: bun ./tests/pagespeed-testing.ts $DEPLOYMENT_URL
               env:
                   DEPLOYMENT_URL: ${{needs.deploy.outputs.deployment_url}}
                   PAGESPEED_API_KEY: ${{ secrets.PAGESPEED_API_KEY }}
+    format:
+        runs-on: ubuntu-latest
+        name: Format
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v3
+            - name: Setup bun
+              uses: oven-sh/setup-bun@v1
+            - name: Install dependencies
+              run: bun install --frozen-lockfile
+            - run: bun format --check .
+    lint:
+        runs-on: ubuntu-latest
+        name: Lint
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v3
+            - name: Setup bun
+              uses: oven-sh/setup-bun@v1
+            - name: Install dependencies
+              run: bun install --frozen-lockfile
+            - run: bun lint
+    typecheck:
+        runs-on: ubuntu-latest
+        name: Typecheck
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v3
+            - name: Setup bun
+              uses: oven-sh/setup-bun@v1
+            - name: Install dependencies
+              run: bun install --frozen-lockfile
+            - run: bun typecheck
diff --git a/src/components/DocumentView/Swagger/Swagger.tsx b/src/components/DocumentView/Swagger/Swagger.tsx
index 06d2fc3c8..4beb25105 100644
--- a/src/components/DocumentView/Swagger/Swagger.tsx
+++ b/src/components/DocumentView/Swagger/Swagger.tsx
@@ -23,7 +23,9 @@ export async function Swagger(props: BlockProps<DocumentBlockSwagger>) {
     //         ? api.paths?.[block.data.path]?.[block.data.method]
     //         : null;
 
-    const operation = {};
+    const operation = {
+        summary: '',
+    };
 
     return (
         <div
@@ -42,7 +44,7 @@ export async function Swagger(props: BlockProps<DocumentBlockSwagger>) {
                             'font-mono text-[0.625rem] font-semibold leading-6 rounded-lg px-1.5 ring-1 ring-inset ring-emerald-300 dark:ring-emerald-400/30 bg-emerald-400/10 text-emerald-500 dark:text-emerald-400',
                         )}
                     >
-                        {block.data.method.toUpperCase()}
+                        {block.data.method?.toUpperCase()}
                     </span>
                     <span
                         className={tcls('h-0.5 w-0.5 rounded-full bg-zinc-300 dark:bg-zinc-600')}
diff --git a/src/components/DocumentView/Table/RecordCard.tsx b/src/components/DocumentView/Table/RecordCard.tsx
index 10dbe0048..478928929 100644
--- a/src/components/DocumentView/Table/RecordCard.tsx
+++ b/src/components/DocumentView/Table/RecordCard.tsx
@@ -6,6 +6,7 @@ import { ClassValue, tcls } from '@/lib/tailwind';
 
 import { RecordColumnValue } from './RecordColumnValue';
 import { TableRecordKV, TableViewProps } from './Table';
+import { getRecordValue } from './utils';
 
 export async function RecordCard(
     props: TableViewProps<DocumentTableViewCards> & {
@@ -15,7 +16,7 @@ export async function RecordCard(
     const { view, record, context, isOffscreen } = props;
 
     const coverFile = view.coverDefinition
-        ? (record[1].values[view.coverDefinition]?.[0] as string)
+        ? getRecordValue<string[]>(record[1], view.coverDefinition)?.[0]
         : null;
     const cover = coverFile
         ? await resolveContentRef({ kind: 'file', file: coverFile }, context)
diff --git a/src/components/DocumentView/Table/utils.ts b/src/components/DocumentView/Table/utils.ts
new file mode 100644
index 000000000..137b26074
--- /dev/null
+++ b/src/components/DocumentView/Table/utils.ts
@@ -0,0 +1,12 @@
+import { ContentRef, DocumentTableRecord } from '@gitbook/api';
+
+/**
+ * Get the value for a column in a record.
+ */
+export function getRecordValue<T extends number | string | boolean | string[] | ContentRef>(
+    record: DocumentTableRecord,
+    definitionId: string,
+): T {
+    // @ts-ignore
+    return record.values[definitionId];
+}
diff --git a/src/lib/links.ts b/src/lib/links.ts
index e71ef080c..60d8f533c 100644
--- a/src/lib/links.ts
+++ b/src/lib/links.ts
@@ -1,6 +1,11 @@
 import 'server-only';
 
-import { RevisionPage, RevisionPageDocument, RevisionPageGroup } from '@gitbook/api';
+import {
+    RevisionPage,
+    RevisionPageDocument,
+    RevisionPageGroup,
+    RevisionPageType,
+} from '@gitbook/api';
 import { headers } from 'next/headers';
 
 import { getPagePath } from './pages';
@@ -96,9 +101,12 @@ export function pageHref(
         if (pdf.includes(page.id)) {
             return '#' + pagePDFContainerId(page, anchor);
         } else {
+            if (page.type === RevisionPageType.Group) {
+                return '#';
+            }
+
             // Use an absolute URL to the page
-            // TODO: we need to extend RevisionPageDocument with "urls"
-            return page.urls?.published || '/todo';
+            return page.urls.app;
         }
     }
 
diff --git a/types/images.d.ts b/types/images.d.ts
new file mode 100644
index 000000000..59e75546e
--- /dev/null
+++ b/types/images.d.ts
@@ -0,0 +1,26 @@
+declare module '*.svg' {
+    const value: {
+        src: string;
+        width: number;
+        height: number;
+    };
+    export default value;
+}
+
+declare module '*.png' {
+    const value: {
+        src: string;
+        width: number;
+        height: number;
+    };
+    export default value;
+}
+
+declare module '*.jpg' {
+    const value: {
+        src: string;
+        width: number;
+        height: number;
+    };
+    export default value;
+}