Dragan Miljanović - AI-Native Software Engineer
Resume / CV

Private Project

Matrice Stage — Offline Android Live Performance System

Offline Android Live Performance System

Offline Android Performance SystemAndroid Application, Offline-First Music Technology, Private Project
Matrice Stage offline Android performance interface

Overview

Matrice Stage is an offline-first Android live performance system for music libraries, setlists, playback, synchronized lyrics and band sync workflows.

Problem

Live performance systems need reliable offline operation, synchronized lyrics and coordinated roles without requiring continuous internet access.

Implemented solution

The system provides Android performance screens, local WebSocket host/client coordination, offline package import and diagnostics workflows.

Key features

Import MP3, WAV, FLAC, LRC and chords JSON
Music library
Multi-file package import
Setlist management
Performance screen
Stage playback service
Synchronized lyrics
Chord display
Band Sync
Host/client/controller roles
Diagnostics export
Error report queue
Tablet layouts
Release build flags
Offline operation

Target users / audience

Performers
Bands
Musicians using offline Android performance workflows

Business value

Offline operational capability
Better multi-device continuity
Structured live performance workflow
Diagnostics and delivery foundation

My role

Product analysis and requirements definition.
Architecture planning and AI-agent tasking.
Implementation supervision across frontend, backend, database and platform-specific surfaces.
Debugging, test planning, acceptance review, deployment preparation and iterative improvement.

AI-native development workflow

  1. 01

    Requirements are converted into structured implementation tasks.

  2. 02

    Codex and AI tools are used for code generation, investigation and refactoring.

  3. 03

    Major tasks follow a READ → BACKUP → PATCH → VERIFY → TEST discipline.

  4. 04

    Human review controls architecture, acceptance, security decisions and release readiness.

  5. 05

    AI is used as an engineering accelerator, not as a substitute for validation.

Technical overview

Built with Kotlin, Android, Gradle, Local WebSocket Host/Client and offline-first architecture.

Key engineering challenges

Coordinating offline playback, synchronized lyrics, local roles and diagnostic reporting across Android performance surfaces.

Testing and verification

Unit tests PASS
Gradle tests PASS
assembleDebug PASS
assembleRelease PASS
QA audit PASS
Production readiness review PASS

Product positioning

The implementation includes the capabilities presented in this case study and is designed for continued product evolution.

Media gallery

Matrice Stage offline Android performance interfaceApplication screen; content not reliably inferable from numeric filename
Matrice Stage offline Android performance interface

Application screen; content not reliably inferable from numeric filename

Matrice Stage application screenApplication screen; content not reliably inferable from numeric filename
Matrice Stage application screen

Application screen; content not reliably inferable from numeric filename

Matrice Stage application screenApplication screen; content not reliably inferable from numeric filename
Matrice Stage application screen

Application screen; content not reliably inferable from numeric filename

Matrice Stage application screenApplication screen; content not reliably inferable from numeric filename
Matrice Stage application screen

Application screen; content not reliably inferable from numeric filename

Matrice Stage application screenApplication screen; content not reliably inferable from numeric filename
Matrice Stage application screen

Application screen; content not reliably inferable from numeric filename

Available for

Employment, custom software, software products and technical partnerships

Available for employment opportunities, remote international roles, custom software development, early product development, internal business systems, Python and SQL reporting solutions, Android and desktop development, product licensing, technical partnerships and individuals with viable product ideas.

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