diff --git a/app/(dashboard)/workspaces/page.tsx b/app/(dashboard)/workspaces/page.tsx
index e0a654e..0892cbd 100644
--- a/app/(dashboard)/workspaces/page.tsx
+++ b/app/(dashboard)/workspaces/page.tsx
@@ -66,7 +66,7 @@ export default async function WorkspacesPage() {
       {/* Workspaces Grid */}
       {workspaces.length > 0 ? (
         <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-3">
-          {workspaces.map((workspace) => (
+          {workspaces.map((workspace: typeof workspaces[number]) => (
             <Link key={workspace.id} href={`/workspaces/${workspace.id}`}>
               <Card className="h-full transition-colors hover:bg-accent/50 cursor-pointer">
                 <CardHeader>
diff --git a/app/api/projects/[projectId]/route.ts b/app/api/projects/[projectId]/route.ts
index 371dc8b..6978572 100644
--- a/app/api/projects/[projectId]/route.ts
+++ b/app/api/projects/[projectId]/route.ts
@@ -83,7 +83,7 @@ export async function GET(request: NextRequest, { params }: RouteParams) {
         // Check access
         const isPublic = project.visibility === ProjectVisibility.PUBLIC;
         const isOwner = session?.user?.id === project.ownerId;
-        const isMember = project.members.some(m => m.userId === session?.user?.id);
+        const isMember = project.members.some((m: { userId: string }) => m.userId === session?.user?.id);
 
         // Check workspace membership
         let isWorkspaceMember = false;
diff --git a/app/api/projects/[projectId]/videos/[videoId]/versions/route.ts b/app/api/projects/[projectId]/videos/[videoId]/versions/route.ts
index b8252c3..e08ff22 100644
--- a/app/api/projects/[projectId]/videos/[videoId]/versions/route.ts
+++ b/app/api/projects/[projectId]/videos/[videoId]/versions/route.ts
@@ -106,7 +106,7 @@ export async function POST(request: NextRequest, { params }: RouteParams) {
         const nextVersionNumber = (video.versions[0]?.versionNumber || 0) + 1;
 
         // Use transaction to handle active flag
-        const version = await db.$transaction(async (tx) => {
+        const version = await db.$transaction(async (tx: Parameters<Parameters<typeof db.$transaction>[0]>[0]) => {
             // If setActive, deactivate all other versions
             if (setActive) {
                 await tx.videoVersion.updateMany({
diff --git a/app/api/workspaces/[workspaceId]/route.ts b/app/api/workspaces/[workspaceId]/route.ts
index 2014042..97630f4 100644
--- a/app/api/workspaces/[workspaceId]/route.ts
+++ b/app/api/workspaces/[workspaceId]/route.ts
@@ -65,7 +65,7 @@ export async function GET(request: NextRequest, { params }: RouteParams) {
 
         // Check access
         const isOwner = session?.user?.id === workspace.ownerId;
-        const isMember = workspace.members.some(m => m.userId === session?.user?.id);
+        const isMember = workspace.members.some((m: { userId: string }) => m.userId === session?.user?.id);
 
         if (!isOwner && !isMember) {
             return apiErrors.forbidden('Access denied');
diff --git a/lib/r2-cleanup.ts b/lib/r2-cleanup.ts
index c773e33..72d8f0a 100644
--- a/lib/r2-cleanup.ts
+++ b/lib/r2-cleanup.ts
@@ -45,7 +45,7 @@ export async function collectVideoVoiceUrls(videoId: string): Promise<string[]>
         },
         select: { voiceUrl: true },
     });
-    return comments.map((c) => c.voiceUrl).filter(Boolean) as string[];
+    return comments.map((c: { voiceUrl: string | null }) => c.voiceUrl).filter(Boolean) as string[];
 }
 
 /**
@@ -59,7 +59,7 @@ export async function collectProjectVoiceUrls(projectId: string): Promise<string
         },
         select: { voiceUrl: true },
     });
-    return comments.map((c) => c.voiceUrl).filter(Boolean) as string[];
+    return comments.map((c: { voiceUrl: string | null }) => c.voiceUrl).filter(Boolean) as string[];
 }
 
 /**
@@ -73,7 +73,7 @@ export async function collectWorkspaceVoiceUrls(workspaceId: string): Promise<st
         },
         select: { voiceUrl: true },
     });
-    return comments.map((c) => c.voiceUrl).filter(Boolean) as string[];
+    return comments.map((c: { voiceUrl: string | null }) => c.voiceUrl).filter(Boolean) as string[];
 }
 
 /**
diff --git a/package.json b/package.json
index 24f6680..73bb9c2 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
     "start": "next start",
     "lint": "eslint",
     "typecheck": "tsc --noEmit",
+    "postinstall": "prisma generate",
     "db:generate": "prisma generate",
     "db:push": "prisma db push",
     "db:migrate": "prisma migrate deploy",
diff --git a/tsconfig.json b/tsconfig.json
index 3a13f90..7e7f86c 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -30,5 +30,5 @@
     ".next/dev/types/**/*.ts",
     "**/*.mts"
   ],
-  "exclude": ["node_modules"]
+  "exclude": ["node_modules", "prisma/seed.ts"]
 }