Your files stay with you.

A software studio with three apps, for offline music, nearby file sharing and Markdown notes.

Vesqen

Offline music player for Android. Plays the music already on your phone, with no account and no streaming, and shows each step a track takes to your headphones.

Version 1.0 · Android 9.0+ · Apache 2.0

vesqen.sumirenokai.com

SkyLink

Sends files, folders and text straight to a device next to you, yours or a friend’s. Device to device, encrypted.

In development · Android first

skylink.sumirenokai.com

Note Portal

Turns a folder of Markdown notes into a reading site that only your computer can open.

Public beta · Windows · macOS preview · MIT

Download from GitHub

Sumire Studio is one person.

AI systems engineer · Full-stack developer
I build AI systems and backend services, and I develop Android apps.

No ads, no third-party trackers: In all three apps.
Open source: Vesqen and Note Portal. Read the code on GitHub