CasaVargas LLC — North Carolina

Software you own.

An indie studio building native apps for Apple platforms and the desktop. Bought once, yours for good — no subscriptions, no rentals, no features held hostage.

Beltr music library
4
Apps shipped
7
Platforms supported
0
Subscriptions
1
Developer

The work

Four apps, built to be lived in

Karaoke engine

Beltr

Live

Your own music folder becomes a karaoke catalog. On-device AI separates the vocals, pulls the synced lyrics, and maps the pitch — nothing uploads, and there's nothing to prepare in advance.

  • On-device vocal separation, a minute or two a song
  • Phones join by QR as wireless mics — no app to install
  • Plays CDG, MP3+G, .kar and .mid as-is
macOSWindowsLinux
Beltr screenshot
Beltr screenshot

IPTV player

Streamline

Coming soon

The IPTV player Apple would build. Pure SwiftUI on every Apple platform, with TMDB metadata, a full EPG, multi-view PiP, and channel switching faster than cable.

  • One codebase: iPhone, iPad, Apple TV, Mac, Vision Pro
  • Live sports and full electronic programme guide
  • Picture-in-picture multi-view
iPhoneiPadApple TVMacVision Pro
Streamline screenshot
Streamline screenshot
Streamline screenshot

AI document scanner

OneScribe

Live

Scan anything and get structured data back — boarding passes, receipts, prescriptions, wine labels. It links people, places, and businesses across every document you capture.

  • On-device VisionKit + CoreML extraction
  • Export to Google Docs, OneNote, Markdown
  • Entity graph across your whole library
iOS
OneScribe screenshot
OneScribe screenshot

Download manager

DebridDownloader

Open source

A blazing-fast native desktop client for Real-Debrid, TorBox, and Premiumize. Multi-threaded, keyboard-first, GPL-3.0. Built with Tauri, React, and Rust.

macOSWindowsLinux
DebridDownloader screenshot

The studio

One developer, shipping in the open

CasaVargas LLC is a solo studio founded by Jon Vargas in North Carolina. Every project starts as a written spec before a line of code gets written — the thinking happens up front so the building flows.

By day it's K-12 IT for a public school district. By night it's SwiftUI, Rust, and a home lab that runs the whole operation. The through-line is the same either way: build the thing properly, charge once, and don't rent people their own software back to them.

The stack

Apple native SwiftUI · Swift 6 · SwiftData
Cross-platform Tauri · Rust · React
Infrastructure Docker · Traefik · Tailscale
Monetization StoreKit 2 · Lemon Squeezy
CI/CD GitHub Actions · Self-hosted