Jannis Arndt
Developer and Founder
Work Experience
Bttr Labs
Lead Developer and Founder
2023 – Present
Limitless Stock
Lead Developer
March 2025 – November 2025
HDI Versicherung
Student Intern
2025
Projects
Kirchheim Freizeit Website
Website for a German sports club with a dedicated signup page. The frontend is built with Next.js, the backend with Hono, and everything is hosted on Cloudflare using Cloudflare Workers. Cloudflare handles load balancing and rate limiting. Emails are processed via Resend, PDFs are prefilled and automated with react-pdf. And we also provided an internal dashboard to manage all signups and tasks around the trip.
- Published on
Limitless Subscription Dashboard
A modern membership management dashboard for Limitless Alliance and Limitless Tickets. Featuring Stripe Subscription Management, Discord role adding and removing.
- Published on
BTTR Merchant API
A modern e-commerce backend API built with Hono, Cloudflare Workers, and Stripe. This project started as a learning exercise to understand how platforms like Shopify structure their merchant infrastructure, and grew into a fully functional API that handles the complete e-commerce flow.
- Published on
BTTR Blocks
A modern collection of ready-to-use code to speed up the launch of startups and SaaS projects.
- Published on
Run Pal
Monitor your workouts and keep a running journal
- Published on