Lohnt sich dein eigenes Draftroom?

Build a working web app called Draftroom, an opinionated creative project-management system for marketing agencies and high-volume content teams.
Use Remix + TypeScript + Tailwind CSS + Prisma + PostgreSQL; use Supabase Auth for login and Supabase Storage for uploaded files, with every secret in .env.
Make it multi-tenant: users belong to a workspace through Membership records and must never be able to read or mutate another workspace's data.
Use this core data model: User, Workspace, Membership, Client, Project, Task, TaskAssignee, TaskReviewer, FileAsset, FileVersion, Comment, Approval, ReviewLink, Notification, and ActivityEvent.
Workspace roles are OWNER and MEMBER; external clients normally use scoped review links instead of full workspace accounts.
Users can create clients, create projects under clients, invite teammates, archive clients/projects, and see only work inside their workspace.
Tasks need title, description, status, priority, assignees, reviewers, startDate, dueDate, deliveryDate, createdAt, updatedAt, attachments, comments, and activity.
Use the workflow BACKLOG → TODO → IN_PROGRESS → IN_REVIEW → APPROVED → DELIVERED and allow drag-and-drop Kanban movement plus a compact list view.
Add a content calendar that plots tasks by due/delivery date and lets users open the same task detail drawer from calendar, list, or Kanban.
Build My Work for the signed-in user; show assigned tasks grouped by status and sort by due date, then delivery date, start date, updatedAt, then title.
Task detail should open as a fast drawer and support editing fields, assignees/reviewers, comments, attachments, version history, approvals, and activity without losing board context.
Files belong to tasks/projects; every replacement upload creates FileVersion v0, v1, v2... while preserving old versions and clearly marking the current version.
Comments can be attached to a task or a specific file/version and have INTERNAL or CLIENT_VISIBLE visibility so team discussion can remain private.
Reviewers need a Review queue for IN_REVIEW work and can Approve or Request Changes with a required/optional comment; approval state and decision history must be visible.
Generate secure expiring /review/:token links for selected files; the mobile-first review page needs no client account and allows only the permissions encoded in the link: view, comment, approve/request changes.
Review links must reveal no unrelated workspace/project data, use random non-guessable tokens, support revocation/expiry, and rate-limit write actions.
Record task creation/edits, assignments, status moves, uploads, new versions, comments, review decisions, link creation/revocation, and delivery in an ActivityEvent timeline.
Add in-app notifications for assignments, mentions, review requests, comments, approvals, requested changes, and approaching due dates; mark read/unread.
Dashboard should show active projects, overdue work, due soon, waiting for review, approved/ready to deliver, recent activity, and quick links into the filtered work.
Use optimistic UI for common mutations, skeleton/loading states, helpful empty/error states, responsive layouts, keyboard-accessible controls, and a dense calm interface closer to Linear/WhatsApp Web than enterprise PM software.
Create routes for /login, /app, /app/my-work, /app/calendar, /app/clients, /app/clients/:clientId, /app/projects/:projectId, /app/review, /app/settings/members, and public /review/:token.
There must be no platform super-admin system: do not create /admin, /super-admin, impersonation, global user/workspace management, super-admin DB roles, middleware, APIs, or related code.
Deliberately exclude billing/subscriptions, attendance/payroll, time tracking, resource planning, Gantt charts, AI agents, email/calendar integrations, SSO, advanced analytics, white-labeling, and Frame.io-style frame-accurate media annotation.
Seed one demo agency with 5 members, 3 clients, multiple projects, realistic marketing tasks, several file versions, comments, review decisions, notifications, and activity so every flow is testable immediately.
Add Prisma migrations, indexes/constraints for tenant safety and common filters, secure server-side authorization helpers, file validation, and tests for cross-workspace access plus review-link permissions.
Add a README with setup, env vars, Supabase configuration, migration/seed commands and run/deploy instructions; then run lint/typecheck/tests/build and fix failures.
Before finishing, verify the complete loop works: create workspace → client → project → task → assign → upload versions → internal feedback → review → client link → approval/changes → delivered.