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.
The rank of purple belt in Brazilian Jiu Jitsu (BJJ) is the gateway to the advanced game
$19.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for BJJ Purple Belt Requirements: map the core Sports workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Users struggle to navigate through many requirements and techniques
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited visual aids for techniques
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Difficulty in tracking progress accurately
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
The rank of purple belt in Brazilian Jiu Jitsu (BJJ) is the gateway to the advanced game. It cannot be defined by a list of techniques, but instead requires a combination of skills. In "Purple Belt Requirements," Roy Dean outlines his skill requirements for the rank, and gives viewers a template for the “game” of BJJ, which they can then change and personalize. Submissions and strategies from the mount, side mount, guard and back positions are covered, as well as lower body submissions and guard passing. Sparring footage, rank demonstrations, and guidelines for growth on your BJJ journey are also included. Chapters: What Makes A Purple Belt? Positions of the Game Passing the Guard BJJ Guidelines Rolling Examples Kuwait Seminar Competitions Demonstrations “Purple Belt Requirements is a new kind of instructional. Almost every other instructional is a long compilation of techniques, sometimes (but not always) arranged in some kind of structure, with the instructor methodically working their way through the details. In his new offering, Roy Dean takes a conceptual approach instead, where the techniques fit into an overall philosophy for purple belt, the most important element of which is the need to learn how to combine techniques into a flowing sequence..” -Can Sönmez Slidey’s Training Log “In the end, this dvd is about the “next thing”. Flowing to the next move with misdirection and momentum, being aware of what options present themselves before they appear. When I started bjj, it was like magic and I wanted to know what was behind the curtain. This dvd begins to shine a light on the elements that make bjj so special.” -Paul Pedrazzi BJJ Norcal Roy Dean holds black belts in several arts, including Judo, Aikido, and Brazilian Jiu Jitsu. He is renown for his precise technique and clear instruction.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.