Finkley — SaaS management accounting for beauty salons

Finkley — a niche SaaS application for management accounting for small beauty salons in the European Union (2–10 specialists: hairdressers, manicure, SPA, tattoo, cosmetology).
Problem: salon owners see client bookings in Booksy/Fresha but do not understand their actual profit after all expenses. They calculate once a quarter in Excel or in their heads.
Solution: one button → profit for the period. Tracking visits, expenses, calculating specialists' salaries, analytics. Without accounting jargon.
What has been implemented (solo, full-stack):

- Multi-tenant architecture with data isolation through Postgres Row-Level Security
- Auth: email, Google OAuth, Telegram Login
- Subscriptions and automatic VAT through Stripe + Stripe Tax
- Encryption of integration secrets (AES-256-GCM)
- Serverless backend on Supabase Edge Functions
- CI/CD through GitHub Actions, hosting on GitHub Pages

Stack: React 18 · TypeScript · Vite · Tailwind · shadcn/ui · Supabase (Postgres / Auth / Storage / Edge Functions) · Stripe · Sentry
The project is developed and maintained by one person from idea and architecture to production. GDPR compliance, data in the EU (Frankfurt).
#SaaS #ReactJS #TypeScript #Supabase #PostgreSQL #Stripe #FullStack #WebApp #FinTech #BeautyTech #Tailwind #StartupMVP