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Creatives on Contra have earned over $150M and we are just getting started
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For a client overwhelmed by Upwork applications, I delivered an end‑to‑end n8n workflow. It pulls new applicants via the Upwork API, scores each with Groq AI, logs results in Google Sheets, and pushes qualified candidates into their CRM while scheduling interviews automatically. Notifications are sent to Telegram, so they only intervene when a strong match appears. Stack: n8n, Webhook, HTTP Request, Upwork API, Groq, Google Sheets, Telegram. The solution cuts roughly 20 minutes of manual review per applicant.
Follow for more: https://go.phonezait.de/
For the client, I delivered an error‑monitoring workflow built with n8n that captures any node failure, writes the details to a Google Sheet and triggers immediate notifications via Telegram and Gmail. The stack includes WooCommerce triggers, an IF node for error detection, and the Groq AI node for optional message enrichment. The result is a self‑service alert system that prevents silent downtime and saves roughly 20 minutes of manual troubleshooting per incident.
Follow for more: https://go.phonezait.de/
🚀 Take a look at our newly upgraded Enterprise POS architecture in action! We completely re-engineered this system, migrating from a Python CustomTkinter GUI to a lightning-fast Tauri front-end paired with a robust Python FastAPI backend.
🔄 The Architecture Upgrade: CustomTkinter to Tauri
Modern Web UI: We stripped away the rigid CustomTkinter framework and rebuilt the front-end using standard HTML, CSS, and vanilla JavaScript. This shift allows for pixel-perfect styling, fluid animations, and a much cleaner, responsive layout.
Decoupled FastAPI Backend: Instead of weaving the UI and database logic together, Python now acts as a standalone, high-performance API. The FastAPI backend handles all the heavy SQLite database operations, keeping the application incredibly snappy.
Seamless API Communication: The front-end and back-end now communicate flawlessly via local HTTP endpoints, allowing the UI to fetch live inventory and process checkouts asynchronously.
The Tauri Magic: Tauri wraps this entire modern web stack into a highly optimized, low-memory native desktop executable, automatically spawning the Python backend as a silent background sidecar process.
🛒 Live Sales Terminal: Watch how seamlessly the checkout flow operates. Users can quickly select products from a searchable catalog, append them to the live billing ledger, and instantly complete transactions with zero lag.
📦 Master Inventory Manager: Total control over stock is just a few clicks away. We showcase the live adjustment capabilities by selecting an item in the manual correction terminal, inputting an intervention magnitude of 55 units, and securely updating the database through a clean confirmation modal.
📊 Deep Analytics & Logs: Data drives decisions. The walkthrough highlights the comprehensive transaction ledger tracking real-time daily metrics—like total revenue, transaction counts, and top-selling products—alongside a detailed, modal-based Monthly Sales Summary.
⚡ This project proves that robust, localized SQLite databases and powerful Python backends can be perfectly paired with beautifully sleek, modern web-based user interfaces.
FastAPIuiuxdesignerpointofsalepossystemsdesktopappdevelopmentBackend DevelopmentDatabase EngineeringSoftware DevelopmentPythonSQLite
