Here’s a breakdown of how you can implement the free and paid features in a structured way, keeping the architecture scalable.

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Feature Implementation Breakdown (Free vs. Paid)

1. Core Monitoring (Free)

✅ Implemented in Open-Source Version
•	USB device monitoring
•	Filesystem integrity checks
•	Network failure detection
•	“Burn file” SSH monitoring
•	Discord webhook notifications

Implementation:
•	Filesystem Monitoring: Use inotify (Linux) or fswatch (cross-platform).
•	USB Monitoring: Parse /sys/bus/usb/devices/ or lsusb output.
•	Network Monitoring: Use ping or netlink API to detect failures.
•	SSH Burn File: Periodically check for the existence of a file (stat(), fs::metadata() in Rust).

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2. USB & Peripheral Lockdown (Paid)

🚀 Paid Feature
•	Automatically disable unauthorized USB devices.
•	Whitelist and blacklist management.

Implementation:
•	Detect devices using udevadm monitor --property.
•	Maintain an allowlist of trusted USB device IDs.
•	On detection of unauthorized devices:
•	Linux: Run echo "1" > /sys/bus/usb/devices/usbX/remove
•	Windows: Use PowerShell scripts to disable USB ports.

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3. Advanced Notifications & Webhooks (Paid)

🚀 Paid Feature
•	Support for Slack, Telegram, Microsoft Teams, Email, and SMS alerts.

Implementation:
•	Add support for multiple API integrations (e.g., Slack Webhooks, Twilio for SMS).
•	Use an event-driven system to trigger notifications based on user-defined rules.

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4. Cloud Logging & Threat Intelligence (Paid)

🚀 Paid Feature
•	Store logs remotely for auditing.
•	Use AI to detect unusual patterns.

Implementation:
•	Use Rust-based REST API (Actix/Web or Axum) to send logs to a cloud storage backend.
•	Provide encrypted logs stored in a database (PostgreSQL, SQLite).
•	Apply basic anomaly detection (e.g., tracking abnormal file deletions or SSH logins).

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5. Tamper Resistance & Self-Healing (Paid)

🚀 Paid Feature
•	Auto-recover from unauthorized file changes.
•	Prevent attackers from disabling the system.

Implementation:
•	Detect unauthorized changes using hash comparison (Blake3).
•	Auto-restore critical files from a backup archive if tampered.
•	Use a hidden watchdog process that restarts monitoring services if terminated.

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6. Mobile Dashboard & Web UI (Paid)

🚀 Paid Feature
•	Control system settings from a web app or mobile device.

Implementation:
•	Build a Rust-based API backend with a database.
•	Use React Native for a simple cross-platform mobile app.
•	Connect API to fetch logs and allow actions (e.g., remote USB lockdown).

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7. Advanced Response Actions (Paid)

🚀 Paid Feature
•	Automatically lock the system or rotate SSH keys if a threat is detected.

Implementation:
•	Run predefined system commands (e.g., shutdown -h now).
•	Auto-rotate SSH keys using ssh-keygen and update ~/.ssh/authorized_keys.

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Code Structure & Monetization Approach
1.	Free Version
•	Core monitoring features.
•	Basic alerting via Discord.
•	Local-only logs.
2.	Paid Version
•	Feature flagging system (cfg(feature = "paid") in Rust).
•	API keys to unlock premium features (cloud logging, advanced alerts).
•	Subscription-based licensing.

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Next Steps

Would you like boilerplate Rust code for the paid features implementation? 🚀