Vibe-code a replacement for Xero invoicing in under an hour
A small-business owner vibe-coded his own replacement for the parts of Xero he used.
Source
@jakobkahn on X · 2026-10-12
Written in our own words. Credit to the original author. Link checked 2026-10-21.
What they did
A small-business owner vibe-coded his own replacement for the parts of Xero he used.
Result (as claimed)
Built in 40 minutes, he says, saving $37 a month.
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 a replacement for Xero invoicing in under an hour What the original author did: A small-business owner vibe-coded his own replacement for the parts of Xero he used. Reported result (as claimed by the author): Built in 40 minutes, he says, saving $37 a month. Source: https://x.com/jakobkahn/status/2109745232015438172 Tools they used: AI coding agent 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 a replacement for Xero invoicing in under an hour What the original author did: A small-business owner vibe-coded his own replacement for the parts of Xero he used. Reported result (as claimed by the author): Built in 40 minutes, he says, saving $37 a month. Source: https://x.com/jakobkahn/status/2109745232015438172 Tools they used: AI coding agent 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 a replacement for Xero invoicing in under an hour What the original author did: A small-business owner vibe-coded his own replacement for the parts of Xero he used. Reported result (as claimed by the author): Built in 40 minutes, he says, saving $37 a month. Source: https://x.com/jakobkahn/status/2109745232015438172 Tools they used: AI coding agent 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.
The Daily 5
Get five new use cases tomorrow morning
Free. Real sources. Unsubscribe any time.
Guides for this use case
How to build your own invoicing and bookkeeping app with AI · How to use AI agents for taxes, bills and budgets · How to vibe code an app with Claude Code
Related use cases
Vibe-code your own church presentation software instead of paying for it
A builder vibe coded a ProPresenter alternative for running church services: multilingual side-by-side scripture, song lyrics and playlists, and separate outputs for audience and stage display.
Vibe-code a research workspace for finding and reading papers
A team vibe coded Gewu Insight, a workspace for finding, organizing and reading research papers with support for AI assistants.
Let Claude Code and Codex reconcile Xero and prepare tax paperwork
He gives Claude Code and Codex access to the Xero API, Xero in the browser for reconciliation, his email to find documents, Stripe and GoCardless APIs, past tax returns and a CPA portal, plus the Google Workspace CLI to create documents.
Vibe-code local-first finance workflows without being a full-time engineer
Finance professional built Ekselio to design finance workflows locally after returning to coding during COVID.