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
OpsCat - Server Monitor & SSH
OpsCat is a powerful server management app for developers and sysadmins
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
N/A
No ratings yet
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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for OpsCat - Server Monitor & SSH: map the core Developer Tools 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
Offer advanced monitoring and alerting functionalities.
Assumption to check: Limited server monitoring features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize their dashboard with widgets.
Assumption to check: No customizable dashboards
Validate with people who use this workflow before building.
Hypothesis 3
Implement an easy-to-use command input interface with suggestions.
Assumption to check: Lack of user-friendly command input
Validate with people who use this workflow before building.
Hypothesis 4
Optimize the app to handle large datasets efficiently.
Assumption to check: Poor performance on large server lists
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
OpsCat is a powerful server management app for developers and sysadmins. Connect to your Linux servers via SSH and monitor performance in real time — all from your iPhone or iPad. **Real-Time Server Monitoring** - CPU usage with per-core breakdown (SYS / USER / IOWAIT) - Memory and swap usage with visual charts - Network traffic speed and total bandwidth - Disk usage, I/O speed, IOPS metrics - GPU monitoring (NVIDIA) - System info: hostname, OS, kernel, uptime, load average **Full-Featured SSH Terminal** - Fast and responsive terminal emulator - Multiple terminal sessions - Support for interactive tools like vim, htop, and top - Customizable terminal themes **Docker Management** - View running, stopped, and all containers - Start, stop, restart, and remove containers - Container logs and resource usage - Docker Compose project management - Docker exec: open a shell inside any container **SFTP File Browser** - Browse remote file system visually - Upload, download, rename, and delete files - Built-in text editor for quick file edits **Command Snippets** - Save frequently used commands as snippets - Run snippets on multiple servers at once - Built-in template library with 30+ common commands - Batch command execution across servers **Server Tools** - Process manager (view and kill processes) - Systemd service management - Log viewer (journalctl, syslog) - Network diagnostics (ping, traceroute, DNS lookup) **Security & Convenience** - SSH key authentication (Ed25519, RSA) - Password authentication with secure storage - Jump host / bastion host support (ProxyJump) - Face ID / Touch ID app lock - Export and backup server configurations **Designed for Mobile** - Clean, modern dark and light themes - Works on iPhone and iPad - Supports both portrait and landscape Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://yuwang001.github.io/xm/privacy_cat.html
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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
Axios
React Navigation
Zustand
React Native Paper
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.
