Custom Software Development
Not every problem is solved with a website. When your business needs its own tool, whether a desktop application, an internal utility or a complete product, Lumen Connection builds custom software focused on performance and user experience.
We specialize in native Windows development with Rust, C++17, Qt 6, WinUI and Razor: lightweight, fast applications carrying your project’s visual identity.
Software we build and maintain
Lumen Music is a native Windows desktop audio player built in C++17 with Qt 6: local library with playlists, a Spotify-style queue, metadata editing and six customizable themes, all working offline. Lumen Chat, written in Rust, is a native AI client that connects to dozens of language models with secure key storage. Both are available as free downloads on our site.
We bring that same engineering to your company’s software: attention to memory use, speed and interface polish.
Technologies & tools
- Rust
- C++17
- Qt 6
- WinUI
- Razor
- SQLite
Portfolio projects
C++
Lumen Music
Lightweight and elegant native Windows audio player, built in C++17 with Qt 6. Local library with playlists and covers, Spotify-style queue, likes, metadata editing, 6 customizable themes and SQLite persistence — all offline, no account required
View project
Rust
Lumen Chat
Lightweight native Windows AI chat client built in Rust. Connects to OpenRouter for access to a wide range of language models through a single, clean interface, with API keys stored securely in the Windows Credential Manager
View projectFrequently asked questions
What kind of software do you build?
Native Windows desktop applications, internal utilities, automation tools and complete products. If you need web or mobile, we cover those too: see our web and mobile development pages.
Why native instead of web?
Native applications in Rust and C++ use less memory, start faster and work offline. For tools used intensively every day, the difference in experience is significant.
Do you sign contracts and NDAs?
Yes. Scope, timeline and confidentiality are agreed in a contract before the project starts.
How do I receive the software and updates?
We deliver an installer, source code (when contracted) and an update channel, plus ongoing maintenance if you want it.
Do you offer help with AI?
Yes. We connect artificial intelligence models to programs and workflows, from internal chatbots to automating repetitive tasks. Lumen Chat, our AI client written in Rust, grew out of this specialty.
Need custom software?
Talk to a developerOr send a message through the contact page.