Vibe code your own newsletter tool when the platform raises prices
After beehiiv raised prices a third time and his yearly bill was set to go from $1,000 to $4,000, indie hacker Marc Lou vibe-coded his own newsletter tool on Amazon SES, open-sourced it as MailCheap and later launched a hosted version from $19 a month.
Source
@moftahlmabry on X · 2026-10-22
Written in our own words. Credit to the original author. Link checked 2026-10-23.
What they did
After beehiiv raised prices a third time and his yearly bill was set to go from $1,000 to $4,000, indie hacker Marc Lou vibe-coded his own newsletter tool on Amazon SES, open-sourced it as MailCheap and later launched a hosted version from $19 a month.
Result (as claimed)
A pricing problem became a new product.
Tools they used
Cost: Pricing depends on the tools you pick; check each official pricing page.
Set it up
Gather the documents
Collect statements, bills, invoices or tax documents for the period you want reviewed.
Ask for an audit, not actions
Have AI coding agent list findings, amounts and suggested next steps before it does anything.
Approve each action
Approve cancellations, disputes or payments one at a time. Never give an agent open-ended access to move money.
Track the result
Record what changed and what you saved so you can check it next month. This is not financial advice.
Copy the full setup prompt
Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.
You are helping me set up this AI use case end to end in Claude Code. Goal: Vibe code your own newsletter tool when the platform raises prices What the original author did: After beehiiv raised prices a third time and his yearly bill was set to go from $1,000 to $4,000, indie hacker Marc Lou vibe-coded his own newsletter tool on Amazon SES, open-sourced it as MailCheap and later launched a hosted version from $19 a month. Reported result (as claimed by the author): A pricing problem became a new product. Source: https://x.com/moftahlmabry/status/2113222960693842348 Tools they used: AI coding agent, Amazon SES Category: Money Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Codex. Goal: Vibe code your own newsletter tool when the platform raises prices What the original author did: After beehiiv raised prices a third time and his yearly bill was set to go from $1,000 to $4,000, indie hacker Marc Lou vibe-coded his own newsletter tool on Amazon SES, open-sourced it as MailCheap and later launched a hosted version from $19 a month. Reported result (as claimed by the author): A pricing problem became a new product. Source: https://x.com/moftahlmabry/status/2113222960693842348 Tools they used: AI coding agent, Amazon SES Category: Money Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Grok Bot. Goal: Vibe code your own newsletter tool when the platform raises prices What the original author did: After beehiiv raised prices a third time and his yearly bill was set to go from $1,000 to $4,000, indie hacker Marc Lou vibe-coded his own newsletter tool on Amazon SES, open-sourced it as MailCheap and later launched a hosted version from $19 a month. Reported result (as claimed by the author): A pricing problem became a new product. Source: https://x.com/moftahlmabry/status/2113222960693842348 Tools they used: AI coding agent, Amazon SES Category: Money Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
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Guides for this use case
How to use AI agents for taxes, bills and budgets · How to vibe code an app with Claude Code
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