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
HackerWeb - Hacker News client
HackerWeb is a super-clean Hacker News app built for maximum readability and has a lean set of features to optimize the reading experience.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
10 ratings · Top 5%
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 HackerWeb - Hacker News client: map the core News 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 a more user-friendly comment viewing experience with loading states and thread hierarchy.
Assumption to check: Difficulty in accessing comments or discussions for articles
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to set preferences for specific topics or types of notifications.
Assumption to check: Limited customization options for notifications
Validate with people who use this workflow before building.
Hypothesis 3
Implement offline caching for articles to allow reading without an internet connection.
Assumption to check: No offline reading support
Validate with people who use this workflow before building.
Hypothesis 4
Add a personalized feed algorithm based on user preferences and reading history.
Assumption to check: Lack of personalized content recommendations
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
HackerWeb is a super-clean Hacker News app built for maximum readability and has a lean set of features to optimize the reading experience. It’s created specifically with iOS design guidelines in mind, so it feels native and blends well with the operating system. It has a simple set of features that are usually invisible: - Dual Web and Comments tabs for easy switching between the story’s web page and the list of comments - Revolutionary comments thread UI for easy navigation, with smart collapsing to prevent being overwhelmed by too many comments - Automatic Dark mode, respecting the system’s appearance settings. - Smart indentations and formatting for comments, complementing the existing limited formatting from Hacker News. - Automatic syntax highlighting for code blocks in comments, with best-effort programming language detection. - Allow interactions like upvoting and replying, which opens up web view with login information and sessions stored in itself, instead of the app. - Comment’s “Thread view” to list all parent comments of a comment, on a flat list, for easy reading instead of manually drilling down the nested comments. - “Share as Image” for comments, which allows sharing of a specific comment, optionally including the parent comments and/or story, as an image. HackerWeb is an unofficial Hacker News client, built with React Native and Expo. This is a passion side project for learning and experimenting ideas. Since 2012. Open-sourced: https://github.com/cheeaun/hackerweb-native-2
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.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
Zustand
react-query
react-native-htmlview
BUILD KIT DIFFICULTY
Intermediate
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.
