Vibe-code a Mac tool that turns PDFs into e-reader-friendly ePubs
Switching to a tiny e-reader made PDFs useless, so the author vibe coded a Swift command-line tool that uses Apple's PDF, Vision and on-device Intelligence APIs to scan, proofread and convert PDFs, installed as a Finder Quick Action.
Source
blululu on Hacker News · 2026-10-14 · Project link
Written in our own words. Credit to the original author. Link checked 2026-10-16.
What they did
Switching to a tiny e-reader made PDFs useless, so the author vibe coded a Swift command-line tool that uses Apple's PDF, Vision and on-device Intelligence APIs to scan, proofread and convert PDFs, installed as a Finder Quick Action.
Result (as claimed)
Open source with a release build; 5 points on Show HN.
Tools they used
Cost: Pricing depends on the tools you pick; check each official pricing page.
Set it up
Define the job
Say exactly what you want done and what the agent may and may not do on your behalf.
Share only what is needed
Give macOS the minimum files or access required. Avoid sharing passwords in chat when a safer login flow exists.
Review the plan
Ask the agent to show its plan or draft before it acts, and approve each step that has real consequences.
Check the result
Confirm the outcome yourself (order placed, request sent, document understood) and keep a record.
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 Mac tool that turns PDFs into e-reader-friendly ePubs What the original author did: Switching to a tiny e-reader made PDFs useless, so the author vibe coded a Swift command-line tool that uses Apple's PDF, Vision and on-device Intelligence APIs to scan, proofread and convert PDFs, installed as a Finder Quick Action. Reported result (as claimed by the author): Open source with a release build; 5 points on Show HN. Source: https://news.ycombinator.com/item?id=50081227 Tools they used: macOS Category: Personal & life 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 Mac tool that turns PDFs into e-reader-friendly ePubs What the original author did: Switching to a tiny e-reader made PDFs useless, so the author vibe coded a Swift command-line tool that uses Apple's PDF, Vision and on-device Intelligence APIs to scan, proofread and convert PDFs, installed as a Finder Quick Action. Reported result (as claimed by the author): Open source with a release build; 5 points on Show HN. Source: https://news.ycombinator.com/item?id=50081227 Tools they used: macOS Category: Personal & life 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 Mac tool that turns PDFs into e-reader-friendly ePubs What the original author did: Switching to a tiny e-reader made PDFs useless, so the author vibe coded a Swift command-line tool that uses Apple's PDF, Vision and on-device Intelligence APIs to scan, proofread and convert PDFs, installed as a Finder Quick Action. Reported result (as claimed by the author): Open source with a release build; 5 points on Show HN. Source: https://news.ycombinator.com/item?id=50081227 Tools they used: macOS Category: Personal & life 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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