Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
App Overview
The Cantina Archive
Log your Galactic Library with The Cantina Archive - a clean, fan-friendly companion for readers who want to track their Canon and Legends book or comics collection across multiple timelines.
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.6
54 ratings · Top 15%
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included15 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Differentiate and validate
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for The Cantina Archive: map the core Books workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Implement advanced filtering and personalized recommendations.
Assumption to check: Limited book discovery features
Validate with people who use this workflow before building.
Hypothesis 2
Add user-generated reviews and ratings for books.
Assumption to check: No community features like reviews or ratings
Validate with people who use this workflow before building.
Hypothesis 3
Provide a one-time purchase option or a more attractive free tier.
Assumption to check: Subscription model may deter users
Validate with people who use this workflow before building.
Hypothesis 4
Enable offline reading and access to saved books.
Assumption to check: Lack of offline access to content
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Log your Galactic Library with The Cantina Archive - a clean, fan-friendly companion for readers who want to track their Canon and Legends book or comics collection across multiple timelines. The Cantina Archive is a sleek collection tracker where you can browse titles by in-universe BBY/ABY dates or release date, mark books you’ve read or own, and stay updated on upcoming releases. Features: • Over 300 books and 2,300 comics in the app to fill out your collection. • Timeline View: Explore books in chronological order (BBY/ABY) or by release date. • Browse & Search: Search by title, author, or ISBN to discover and manage your collection. • Track Your Collection: Toggle titles as Owned, Read, Listened, or Want to Read. • Currently Reading: Highlight one title as your current read in your profile. • New Releases: Discover upcoming novels and mark those you’re most excited for. • Sync with Firebase: Back up and access your collection securely across devices. No ads. No personal tracking. Just books.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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BUILD KIT DIFFICULTY
Advanced
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.
