Build small apps and a weekly hackathon digest with Replit Agent
The author built a cover letter generator, invoice generator, habit tracker, and a Monday automation that emails Bay Area hackathon summaries, all for under $25.
Done withReplit Agent
- What they did
- Moe Lueker gave Replit Agent a three-paragraph prompt covering theme, feature order and technical constraints. Agent 3 then built the apps, tested them in a browser and fixed its own errors. For the Monday automation, he asked for a Bay Area hackathon summary emailed at 8am. The agent asked for his OpenAI key, then wired up mail and web search.
- How it went
- The invoice generator cost $6.64 and the automation cost $4.50 and took 19 minutes, with all three apps under $25. The first email arrived with links. The PDF layout and the habit check-off each needed one follow-up prompt.
- Worth knowing
- You must create and paste in your own OpenAI API key, and the author hasn't rechecked the automation since the first successful email.
Try it yourself with Replit Agent
Build me a small web app: [a cover letter generator / invoice generator / habit tracker] that does [2-3 key features], with a clean, simple interface. Then add a weekly automation that runs every Monday at [time] and emails me a summary of [topic, e.g. upcoming hackathons in my city] to [my email]. Finish when the app is deployed and a test email has been sent, and tell me before you do any step that could cost money.
Want help getting this working? Join the Vibe Coding Academy ↗ Run by Alex Finn, who also runs this site.
Source: moelueker.com · Undated
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