Tech stack behind a $300K ARR app

Key Concepts:

• Cursor (IDE)
• Windsurf (IDE)
• ChatGPT-3 (AI Product Manager)
• Vercel (Hosting platform for Next.js)
• Next.js (React framework)
• Supabase (Backend-as-a-Service)
• AI APIs (Claude, ChatGPT, etc.)
• Resend (Email API)
• X API (Twitter API)
• Margins (Profitability metric)

Platforms, Technologies, and Software Used

The speaker details the specific platforms, technologies, and software used to build and grow their business, along with associated costs.

• Development Environment: Initially, the speaker used Cursor as their IDE (Integrated Development Environment). However, due to a perceived decline in performance ("IQ went down"), they switched to Windsurf. The speaker doesn't elaborate on the specific features of Windsurf that made it preferable.
• Product Management: ChatGPT-3 is used as a product manager. The speaker doesn't specify the exact tasks ChatGPT-3 performs, but it's implied that it assists in managing the website and potentially other product-related activities.
• Website Hosting: Vercel is used to host the website. The speaker mentions that their app is built on Next.js, a React framework, which is well-suited for deployment on Vercel. The cost for Vercel hosting is $20 per month.
• Backend Database: Supabase is used for data storage and management. The speaker highlights its ease of use. The cost for Supabase is $20 per month. Supabase is a Backend-as-a-Service (BaaS) platform, offering features like database, authentication, and real-time subscriptions.
• AI APIs: The speaker utilizes multiple AI APIs, including Claude and ChatGPT, along with "a couple others" not explicitly named. These APIs likely power various AI-driven features within the business. The total cost for all AI APIs is approximately $250 per month.
• Email Communication: Resend is used as an email API for handling email communication.
• X API (Twitter API): The speaker pays $5,000 per month for the X API (formerly Twitter API). This suggests a significant reliance on Twitter data or functionality within their business model.

Cost Breakdown and Margins

The speaker provides a detailed breakdown of the monthly costs associated with their technology stack.

• Vercel: $20/month
• Supabase: $20/month
• AI APIs (Claude, ChatGPT, etc.): $250/month
• Resend (Email API): Unspecified
• X API: $5,000/month
• Total Costs: Approximately $5,300/month

The speaker states that the business generates $25,000 in monthly revenue. With $5,300 in monthly expenses, this results in approximately 80% margins. This is calculated as (($25,000 - $5,300) / $25,000) * 100%.

Conclusion

The speaker relies on a combination of modern development tools, AI APIs, and cloud services to run their business. While the X API represents a significant expense, the overall cost structure allows for substantial profit margins. The choice of tools like Next.js, Vercel, and Supabase suggests a focus on scalability, ease of use, and rapid development. The use of ChatGPT-3 as a product manager highlights the increasing role of AI in business operations.