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
JellyPod - Retro Style Music
JellyPod turns your iPhone into a retro, wheel-driven music player for your own Jellyfin server
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 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 included19 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 JellyPod - Retro Style Music: map the core Music 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 robust offline playback with downloaded songs.
Assumption to check: Limited offline accessibility for music playback.
Validate with people who use this workflow before building.
Hypothesis 2
Streamline the UI for a more focused music experience.
Assumption to check: User interface can feel cluttered with too many features.
Validate with people who use this workflow before building.
Hypothesis 3
Introduce better sorting and filtering options for playlists.
Assumption to check: Difficulty in managing large playlists.
Validate with people who use this workflow before building.
Hypothesis 4
Add social sharing capabilities to enhance music discovery.
Assumption to check: Lack of social features for sharing music.
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
JellyPod turns your iPhone into a retro, wheel-driven music player for your own Jellyfin server. Spin the wheel, flip through your album art, and enjoy your music the way it used to feel - no algorithms, no subscriptions, just your collection. Connect to any Jellyfin server and your whole music library comes with you: albums, artists, playlists, genres and star ratings, all synced for fast browsing. FEATURES • Authentic spin-wheel navigation with haptics and click sounds • Flip through your albums by cover artwork • CarPlay - browse Playlists, Artists, Albums and Songs right in your car • Instant mixes built from any song in your library • Quick on-the-fly playlists you build as you listen • Shuffle, repeat and star ratings that sync back to Jellyfin • Choose your body colour to match your favourite era • Now Playing with artwork, scrubbing and full library controls • A few hidden extras to rediscover Your music. Your server. Your rules. Requires a Jellyfin server. Not affiliated with Apple or Jellyfin.
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
Zustand
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expo-av
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.
