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
Alexandria - The Media Library
Alexandria brings all your self-hosted media libraries together in one beautiful app
$6.99 · In-app purchases
PRICE
$6.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.4
7 ratings · Top 30%
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 included18 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 Alexandria - The Media Library: 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 search filters and recommendations.
Assumption to check: Limited media discovery features compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the organization process with better tagging and sorting.
Assumption to check: Users may find organizing media cumbersome.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance transparency and clarity in subscription options.
Assumption to check: Inconsistent user feedback on subscription management.
Validate with people who use this workflow before building.
Hypothesis 4
Integrate social sharing options to enhance user engagement.
Assumption to check: Limited social sharing capabilities.
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
Alexandria brings all your self-hosted media libraries together in one beautiful app. Stream or download to play music, video, audiobooks, ebooks, comics, and manga from your personal servers. Do you have multiple server instances and want to connect to all of them in a single app (yours and a friends)? Alexandria (Standard & Premium) now supports up to 3 connections for any service, across ALL supported services. SUPPORTED SERVICES: - Audiobookshelf – Audiobooks & podcasts - Kavita – Comics, manga & ebooks - Plex – Movies, Music & Audiobook libraries - Jellyfin – Movies, Music & Audiobook libraries - Storyteller – Synced audiobook/ebook reading - BookLore – Ebook library management, Audiobook support now included! - Calibre Content Server & Calibre-Web – Multi-format ebook access - Komga – comic & manga support SERVICE UNIQUE FEATURES: - Download for offline listening/reading - Background audio playback with lock screen controls - CarPlay & AirPlay support - Apple Watch support (download, stream, bookmark, all from the watch! Supports Plex & Audiobookshelf so far) - Sync progress across devices (server progression sync back) - Sleep timer & playback speed controls (Settings > Playback) - Dark, light, & sepia mode support for readers - Several fonts to choose from within the readers - Chapter navigation for audiobooks & ebooks - Much, much more within the app! APP UNIQUE FEATURES: - View Upcoming Releases for series you own - Create smart reading plans with reading reminders to help you stay on track with reading goals - Global Search – search all media for all connected services at once. - Unified Library – view all media in a single, unified view (optional/customizable from Settings). - Cross-Service Queuing – have music in your Plex/Jellyfin server & a friends and want to mix it into a single listening queue? Go for it! FLEXIBLE ACCESS: Alexandria Standard includes 2 server integrations of your choice, which you can change once every 30 days (can be changed once after initial setup). Can also be used with a single service, but was designed with an ecosystem of services in mind. Need access to all eight? Upgrade to Alexandria Premium for $1.99/month and connect your entire self-hosted ecosystem. Lifetime license for $59.99 unlocks the entire app forever! INDIE DEVELOPED: - Alexandria is built and maintained by a solo developer. Your subscription directly supports ongoing development, new features, and continued improvements. Thank you for supporting independent software! YOUR MEDIA, YOUR SERVERS: - Alexandria connects directly to your servers—your media stays yours. Built by an independent developer with ongoing updates and improvements. Note: Requires at least one compatible self-hosted media server. Alexandria is a client app and does not provide content. ROADMAP & COMMUNITY: - https://stoutc24.github.io/AlexandriaUpdatesRoadmap/ - https://www.reddit.com/r/AlexandriaMediaLib/ Terms of Service: https://stoutc24.github.io/alexandria-terms/ Privacy Policy: https://stoutc24.github.io/alexandria-privacy/
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
React Navigation
Zustand
React Native Gesture Handler
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.
