Infinitum Arc

Infinitum Arc represents a comprehensive reimagining of the digital card-sharing, architecture, and contact management system. Digital Business Cards (.mpdc) Proprietary format — Infinitum Arc introduces its own multimedia digital card file format. Cards are self-contained, offline-renderable documents. The format is compatible with the parent D.C. Infinitum web application with no conversion layer required. Card Versions — Each contact can have up to 10 named card versions. Each version is independently shareable. The default version is flagged explicitly. Field Selection per Version — When creating a card version, a field selector lets you choose exactly which contact fields appear on that card. An "All / None" toggle is included for speed. Card Naming — Each card version can be given a custom file name at creation time. Card Repository — All received and saved .mpdc cards are organized in a dedicated Card Repository screen, accessible from the contacts header. Card Categories — Cards in the repository can be assigned to color-coded categories. Gallery Carousel Each contact can have a personal gallery of up to 20 images stored locally. Up to 10 images (configurable) are embedded into the digital card. Carousel position is configurable: above or below the main card content. An optional carousel label can be set per contact. Peer-to-Peer Sync Infinitum Arc's contact subscription system is a fully decentralized, relay-based WebSocket network with no central server. Profile updates are applied immediately when received. Proximity Mass Contact Exchange (Radar) The Radar screen enables direct device-to-device contact exchange over Bluetooth and WiFi using Nearby Connections (P2P_CLUSTER strategy). Every device simultaneously advertises and discovers, forming a self-healing mesh. No pairing or server is required. Contact Groups Contacts can belong to one or more named, color-coded groups simultaneously. Favorites Any contact can be pinned to the Favorites section that appears at the top of the contacts list, above the alphabetical sections. Favorites are toggled via a star button in the contact detail App Bar or a long-press on the contact tile. Stay-in-Touch Reminders & Special Days Each contact supports multiple named special days (birthdays, anniversaries, etc.) with configurable lead-time reminders (days before the event). Backup & Restore Full backup exports all contact information and restores the snapshot perfectly. INSERT OR REPLACE - conflict resolution preserves original contact and group IDs, preventing duplicates on repeated restores. QR Code Sharing Every contact and card version has a QR code sheet accessible from the detail screen and the card viewer. Native Address Book Bridge Contacts can be imported from the device's native address book (one-way pull) or exported to it (one-way push). Duplicate detection on import uses multi-field scoring: phone (0.50 weight), email (0.45), and name similarity (0.25), with a 0.75 threshold. 15 Color Themes Infinitum Arc ships with 15 switchable color themes, each with a paired dark and light variant (30 total combinations). The default theme is Cosmic Purple dark. 🔒 Privacy No central server. All contact data is stored locally on-device. P2P sync data is encrypted and pseudonymous. .mpdc files contain only the fields explicitly selected by the card creator. Sensitive fields can be excluded from any card version.