Sprint startet sofort. Heute: finale Projektidee festlegen, Airtable Account erstellen, erste Datenbank-Struktur anlegen. Kein Zögern — konkrete Entscheidungen treffen.
Sprint starts now. Today: lock in the final project idea, create an Airtable account, set up the first database structure. No hesitation — make concrete decisions.
DeliverablesDeliverables
Projektidee in 2 Sätzen schriftlich definiert
Project idea defined in 2 sentences in writing
Airtable Account + erste Base erstellt
Airtable account + first base created
Kern-Features auf 3 reduziert (kein Scope-Creep)
Core features reduced to 3 (no scope creep)
Tag 2–3Day 2–3~60 Min/Tag
Airtable Setup & Datenmodell
Airtable Setup & Data Model
Lernt Airtable Basics (20 Min YouTube Tutorial). Erstellt Datenbank mit Tabellen: Invoices (Nummer, Kunde, Betrag, Status, Fälligkeitsdatum). Fügt erste Test-Daten ein.
Learn Airtable basics (20-min YouTube tutorial). Create database with tables: Invoices (Number, Client, Amount, Status, Due Date). Add first test data.
DeliverablesDeliverables
Airtable Base mit "Invoices" Tabelle
Airtable base with "Invoices" table
5 Spalten: Invoice #, Client, Amount, Status, Due Date
5 columns: Invoice #, Client, Amount, Status, Due Date
10 Test-Einträge angelegt
10 test entries created
Tag 4–5Day 4–5~60 Min/Tag
Landing Page mit Carrd
Landing Page with Carrd
Erstellt simple Landing Page: "InvoiceFlow — Nie wieder Rechnungen vergessen". Erklärt das Problem, zeigt Screenshot von Airtable, Waitlist-Formular mit Typeform.
Build a simple landing page: "InvoiceFlow — Never forget an invoice again". Explains the problem, shows an Airtable screenshot, waitlist form with Typeform.
DeliverablesDeliverables
Landing Page live auf invoiceflow.carrd.co
Landing page live at invoiceflow.carrd.co
Typeform für Waitlist integriert
Typeform waitlist integrated
Screenshot der Airtable-Lösung als "Demo"
Screenshot of the Airtable solution as "demo"
Tag 6–7Day 6–7~60 Min/Tag
Zapier Automation Setup
Zapier Automation Setup
Lernt Zapier Basics. Erstellt Zap: Neue Invoice in Airtable → Email-Reminder 2 Tage vor Fälligkeit. Testet mit eigenen Test-Invoices. Funktioniert!
Learn Zapier basics. Create a Zap: New invoice in Airtable → email reminder 2 days before due date. Test with own invoices. It works!
DeliverablesDeliverables
Zapier Zap: Airtable → Gmail
Zapier Zap: Airtable → Gmail
Email-Template für Reminders erstellt
Email template for reminders created
3 Test-Emails erfolgreich verschickt
3 test emails sent successfully
Tag 8–10Day 8–10~60 Min/Tag
User Testing & Feedback
User Testing & Feedback
Schickt Airtable-Link an 3 Freelancer-Freunde zum Testen. Sammelt Feedback: "Funktioniert, aber ich will mein eigenes Dashboard". Plant Version 2.0 mit richtigem Interface.
Send the Airtable link to 3 freelancer friends for testing. Collect feedback: "Works, but I want my own dashboard". Plan version 2.0 with a proper interface.
DeliverablesDeliverables
3 Beta-User nutzen die Airtable
3 beta users using the Airtable
Feedback dokumentiert (Google Docs)
Feedback documented (Google Docs)
Waitlist: 12 Sign-ups auf Landing Page
Waitlist: 12 sign-ups on landing page
Tag 11–13Day 11–13~60 Min/Tag
Polish & Mini-Launch
Polish & Mini-Launch
Verbessert Landing Page (Testimonial von Beta-User), postet auf Reddit r/freelance und in 2 Freelancer Facebook-Gruppen. Erste zahlende User? Noch nicht — aber 45 Waitlist Sign-ups!
Improve landing page (testimonial from beta user), post on Reddit r/freelance and in 2 freelancer Facebook groups. First paying users? Not yet — but 45 waitlist sign-ups!
DeliverablesDeliverables
Landing Page mit User-Testimonial
Landing page with user testimonial
Reddit Post: 23 Upvotes, 8 Comments
Reddit post: 23 upvotes, 8 comments
45 Waitlist Sign-ups total
45 waitlist sign-ups total
3 aktive Beta-User
3 active beta users
Ergebnis nach 13 Tagen: Problem validiert, funktionierender No-Code MVP-Kern, 45 Waitlist-Anmeldungen. Nächster Schritt: Coden lernen oder Co-Founder finden für Custom App.
Result after 13 days: Problem validated, working no-code MVP core, 45 waitlist sign-ups. Next step: learn to code or find a co-founder for a custom app.
Das klingt machbar — weil es machbar ist. Cohort #1 ist kostenlos.
This sounds doable — because it is. Cohort #1 is free.
Tools Next.js, Supabase, Vercel — alles zum ersten Mal
Zeitplan ~1h/Tag · 20% Learning, 80% Building
Ziel Funktionierende Web-App mit echten Features
Starting Conditions
Background Basic web knowledge (HTML, JavaScript basics)
Tools Next.js, Supabase, Vercel — all for the first time
Schedule ~1h/day · 20% Learning, 80% Building
Goal Working web app with real features
Tag 1Day 1~60 Min
Setup & Architektur
Setup & Architecture
Next.js Projekt mit create-next-app erstellt. Supabase Account eingerichtet, Datenbank-Schema designed: Users, Invoices, Clients Tabellen. GitHub Repo angelegt, Vercel verbunden.
Next.js project created with create-next-app. Supabase account set up, database schema designed: Users, Invoices, Clients tables. GitHub repo created, Vercel connected.
DeliverablesDeliverables
Next.js App läuft lokal
Next.js app running locally
Supabase Projekt mit 3 Tabellen
Supabase project with 3 tables
Vercel Auto-Deploy aus GitHub
Vercel auto-deploy from GitHub
Tag 2–3Day 2–3~60 Min/Tag
Auth & User Management
Auth & User Management
Supabase Auth integriert (Magic Link Login). Protected Routes eingebaut. User-Dashboard mit Supabase-Daten. RLS Policies für sichere Daten-Isolation zwischen Usern.
Supabase Auth integrated (Magic Link login). Protected routes added. User dashboard with Supabase data. RLS policies for secure data isolation between users.
DeliverablesDeliverables
Login / Logout funktioniert
Login / logout working
Dashboard zeigt User-spezifische Daten
Dashboard shows user-specific data
RLS Policies aktiv
RLS policies active
Sprint greift hier ein ↓Sprint starts here ↓
Tag 4–6Day 4–6~60 Min/Tag
Invoice CRUD & Dashboard
Invoice CRUD & Dashboard
Komplette Invoice-Verwaltung: Erstellen, Anzeigen, Status-Update, Löschen. Dashboard mit Übersicht (offene Rechnungen, überfällige, bezahlte). Responsive Design mit Tailwind CSS.
Invoice List mit Filter (offen / bezahlt / überfällig)
Invoice list with filter (open / paid / overdue)
Create / Edit / Delete Flows
Create / Edit / Delete flows
Dashboard KPIs (Total Outstanding, Overdue)
Dashboard KPIs (Total Outstanding, Overdue)
Mobile responsive
Mobile responsive
Tag 7–8Day 7–8~60 Min/Tag
Email Reminders mit Resend
Email Reminders with Resend
Resend API integriert. Automatische Reminder-Emails 3 Tage vor Fälligkeit per Cron Job (Vercel). Email-Template mit Invoice-Details. Erste Test-Emails an eigene Adresse.
Resend API integrated. Automatic reminder emails 3 days before due date via Cron Job (Vercel). Email template with invoice details. First test emails to own address.
DeliverablesDeliverables
Resend Integration live
Resend integration live
Cron Job: täglich 08:00 UTC
Cron job: daily at 08:00 UTC
3 Email-Templates (Reminder, Overdue, Paid)
3 email templates (Reminder, Overdue, Paid)
Tag 9–10Day 9–10~60 Min/Tag
Beta Launch & Feedback
Beta Launch & Feedback
App auf invoiceflow.app deployed. 8 Freelancer-Freunde eingeladen. Feedback gesammelt über Notion-Formular. Feature-Requests priorisiert: PDF Export, Client Portal, Stripe.
App deployed to invoiceflow.app. 8 freelancer friends invited. Feedback collected via Notion form. Feature requests prioritized: PDF export, client portal, Stripe.
DeliverablesDeliverables
8 Beta-User aktiv in der App
8 beta users active in the app
17 Feature-Requests dokumentiert
17 feature requests documented
3 Bugs gefixt basierend auf Feedback
3 bugs fixed based on feedback
87 Waitlist Sign-ups via Landing Page
87 waitlist sign-ups via landing page
Tag 11–13Day 11–13~60 Min/Tag
Polish & Soft Launch
Polish & Soft Launch
Landing Page mit echten Screenshots und Beta-Testimonials. Gepostet auf Indie Hackers ("I built InvoiceFlow in 21 days"). App stabil, bereit für Scale.
Landing page with real screenshots and beta testimonials. Posted on Indie Hackers ("I built InvoiceFlow in 21 days"). App stable, ready to scale.
DeliverablesDeliverables
Production App live und stabil
Production app live and stable
Indie Hackers Post: 43 Upvotes
Indie Hackers post: 43 upvotes
87 Waitlist Sign-ups total
87 waitlist sign-ups total
8 aktive Beta-User, kein Churn
8 active beta users, no churn
Tag 14–21 · ValidierungDay 14–21 · Validation~30 Min/Tag
Bauen + Validieren (parallel)
Build + Validate (parallel)
Ab Tag 14: Umfrage erstellt (Tally), über Reddit + LinkedIn + 5 DMs verbreitet. Parallel: 3 UX-Fixes auf Basis von echtem Nutzer-Feedback. Validierungs-Bilanz an Tag 21.
From Day 14: Survey created (Tally), distributed via Reddit + LinkedIn + 5 DMs. In parallel: 3 UX fixes based on real user feedback. Validation summary on Day 21.
DeliverablesDeliverables
25 Survey-Responses (Tally)
25 survey responses (Tally)
Top-3-Schmerzpunkte identifiziert
Top 3 pain points identified
3 UX-Fixes implementiert
3 UX fixes implemented
Validierungs-Bilanz: Zielgruppe bestätigt
Validation summary: target audience confirmed
Ergebnis nach 21 Tagen (Silber): Web-App live mit Auth, CRUD, Email-Automation. 87 Waitlist Sign-ups, 8 Beta-User. 25 Validierungs-Responses, 3 UX-Fixes. Sprint abgeschlossen — Silber-Nachweis erbracht.
Result after 21 days (Silver): Web app live with auth, CRUD, email automation. 87 waitlist sign-ups, 8 beta users. 25 validation responses, 3 UX fixes. Sprint completed — Silver milestone delivered.
Das klingt machbar — weil es machbar ist. Cohort #1 ist kostenlos.
This sounds doable — because it is. Cohort #1 is free.
Tools Next.js, Supabase, Stripe, Resend — all familiar
Schedule ~1h/day · 5% Learning, 95% Building
Goal Production-ready SaaS with first paying customers
Tag 1Day 1~60 Min
Full Stack Boilerplate
Full Stack Boilerplate
Next.js 14, Supabase, Tailwind, TypeScript — alles in einer Stunde aufgesetzt. Datenbank-Schema für Invoice SaaS: Users, Invoices, Clients, Payments, Subscriptions. Vercel deployed.
Next.js 14, Supabase, Tailwind, TypeScript — all set up in one hour. Database schema for Invoice SaaS: Users, Invoices, Clients, Payments, Subscriptions. Vercel deployed.
DeliverablesDeliverables
Production-ready Stack live
Production-ready stack live
Vollständiges DB-Schema
Complete DB schema
CI/CD Pipeline (GitHub → Vercel)
CI/CD pipeline (GitHub → Vercel)
Tag 2–3Day 2–3~60 Min/Tag
Auth + Stripe Subscriptions
Auth + Stripe Subscriptions
Supabase Auth + Stripe Subscriptions gleichzeitig integriert. Webhook Handler für Payment Events. Free/Pro Tier Logic. User-Daten sicher mit RLS Policies isoliert.
Supabase Auth + Stripe Subscriptions integrated simultaneously. Webhook handler for payment events. Free/Pro tier logic. User data securely isolated with RLS policies.
DeliverablesDeliverables
Login / Signup / Password Reset live
Login / Signup / Password Reset live
Stripe Checkout: Free → Pro ($9/Monat)
Stripe Checkout: Free → Pro ($9/month)
Webhook Handler vollständig
Webhook handler complete
RLS Policies für alle Tabellen
RLS policies for all tables
Tag 4–6Day 4–6~60 Min/Tag
Vollständige Invoice-Features
Complete Invoice Features
Complete Invoice CRUD + PDF Generation (Puppeteer). Client-Portal für Kunden-Zahlungen. Bulk-Import aus CSV. Dashboard mit Revenue-Analytics. Dark/Light Mode.
Complete Invoice CRUD + PDF generation (Puppeteer). Client portal for customer payments. Bulk import from CSV. Dashboard with revenue analytics. Dark/Light mode.
DeliverablesDeliverables
Invoice PDF Generation & Download
Invoice PDF generation & download
Client-Portal (Public Link für Zahlung)
Client portal (public link for payment)
CSV Import für Bestandsdaten
CSV import for existing data
Revenue Dashboard mit Charts
Revenue dashboard with charts
Tag 7–8Day 7–8~60 Min/Tag
Email Automation Suite
Email Automation Suite
Resend Integration mit reaktiven Transaktions-Emails: Reminder (3 Tage vor Fälligkeit), Overdue Notice, Payment Confirmation, Welcome Flow. Eigenes Email-Template-System.
Resend integration with reactive transactional emails: Reminder (3 days before due), Overdue Notice, Payment Confirmation, Welcome Flow. Custom email template system.
DeliverablesDeliverables
6 Email-Templates (branded)
6 email templates (branded)
Cron: täglich + Event-based Trigger
Cron: daily + event-based trigger
Email-Log im Dashboard
Email log in dashboard
Unsubscribe / Preferences Center
Unsubscribe / preferences center
Sprint greift hier ein ↓Sprint starts here ↓
Tag 9–10Day 9–10~60 Min/Tag
Landing Page & SEO
Landing Page & SEO
Production-grade Landing Page (Hero, Social Proof, Features, Pricing, FAQ). SEO optimiert (Meta Tags, Schema.org). Analytics (Plausible), Conversion Tracking. Domain: invoiceflow.com.
Production-grade landing page (Hero, Social Proof, Features, Pricing, FAQ). SEO optimized (meta tags, Schema.org). Analytics (Plausible), conversion tracking. Domain: invoiceflow.com.
DeliverablesDeliverables
Landing Page conversion-optimiert
Landing page conversion-optimized
SEO: Meta Tags, Sitemap, robots.txt
SEO: Meta tags, sitemap, robots.txt
Analytics + Conversion Funnel
Analytics + conversion funnel
invoiceflow.com live
invoiceflow.com live
Tag 11–13Day 11–13~60 Min/Tag
Soft Launch + First Customers
Soft Launch + First Customers
Launched auf Indie Hackers, Twitter, Reddit. Erste zahlende Kunden am Launch-Tag. SEO bringt organische Signups. MVP deployed und stabil.
Launched on Indie Hackers, Twitter, Reddit. First paying customers on launch day. SEO bringing organic signups. MVP deployed and stable.
DeliverablesDeliverables
134 Sign-ups in 3 Tagen
134 sign-ups in 3 days
8 zahlende Kunden ($72 MRR)
8 paying customers ($72 MRR)
Traffic: 450 Visitors, 15% Conversion
Traffic: 450 visitors, 15% conversion
2 User-Testimonials live
2 user testimonials live
Tag 14–21 · ValidierungDay 14–21 · Validation~45 Min/Tag
Result after 30 days (Gold): Production-ready SaaS with $72 MRR. 52 validation responses, commitment test passed (8/30 conversions). Sprint completed — Gold milestone delivered.
Das klingt machbar — weil es machbar ist. Cohort #1 ist kostenlos.
This sounds doable — because it is. Cohort #1 is free.
Coden lernen / Co-FounderLearn to code / co-founder
Stripe, GrowthStripe, growth
Growth, SEO, FeaturesGrowth, SEO, features
Key Insight: Alle 3 haben in 13 bis 30 Tagen (~1h/Tag) etwas Reales gebaut. Der Unterschied ist nicht "ob", sondern "wie weit". Anfänger validiert das Problem, Fortgeschrittene haben eine validierte App, Profis machen Revenue mit dokumentiertem Commitment-Test. Jeder Weg ist wertvoll — starte wo du bist. 🚀
Key Insight: All 3 built something real in 13 to 30 days (~1h/day). The difference isn't "whether", but "how far". Beginners validate the problem, intermediates have a validated app, experts make revenue with a documented commitment test. Every path is valuable — start where you are. 🚀
Cohort #1 — jetzt offen
Cohort #1 — now open
Welcher Pfad bist du?
Which path are you?
Bewirb dich jetzt — das System wählt automatisch das passende Modul für dich.
Apply now — the system automatically picks the right module for you.