Centralized multi-tenant client portal (portal.dantedi.de) featuring zero-knowledge tenant isolation. Clients securely access their custom web dashboards, while administrator controls enable full contract-based project and account management.

Inventory management system including a dashboard, built for a client — developed and operated as a standalone application.

Concept and implementation of a web interface for a client.

Inventory management system with eBay integration, built for a client: automated listings via the eBay API (incl. OAuth2), image handling, and stock management through a central dashboard.

Discord bot with a web dashboard, open for the community to use: ticket system, role management, server overview — plus a subscription model via Stripe for premium features. Backend built as a REST API with its own API-key system for communication between the individual services.

Central gaming platform for custom-built browser-native web games and Progressive Web Apps. First active title in closed alpha: Pixel Pet (retro virtual pet simulation with custom Canvas engine, Web Audio synth & Discord cloud sync) — with additional games in active planning.

Operating a dedicated Minecraft server with custom-developed Java plugins: custom game mechanics, event handling, command trees, economy systems, and administration interfaces.

Self-built admin interfaces for Palworld & Minecraft: live player list, whitelist management, server control.

I run the server with several custom agents for automated monitoring.

Windows desktop app for automated management of mail and deadlines: detects sender, date, and category from photos/scans, automatically files documents, and warns about deadlines and duplicates. Runs entirely locally via Ollama — no cloud, no upload.