YourAmaryllis · youramaryllis.us

A studio for AI-native tools, real apps, and free utilities

YourAmaryllis ships live web apps, mobile software, and open-source tools. Dragon Ring runs as hosted SaaS today; CloudMount and lit publish signed GitHub releases; Off Script is on iPhone and Android. ThreadPool is on Mac, iPhone, Windows, and Android, with a direct macOS download. CastFlow is in active development.

View live products Meet the founder

Public site — no login required. Production apps run on Vercel, Supabase, and Google Cloud (Vertex AI). Open-source tools ship via GitHub Releases.

Shipped & accessible

Live products you can open today

YourAmaryllis operates production software — web apps, mobile apps, and open-source releases with working interfaces. No staging login required; links below go directly to live apps or public downloads.

Dragon Ring

Live SaaS

Hosted tournament scheduling SaaS — brackets, mat assignments, and day-of operations for martial arts events.

Open Dragon Ring

code-crew

Open source · CLI

Open-source virtual AI development team (AGPL-3.0) — installable CLI with live terminal demo on the product page.

View product & demo

CloudMount

Open source · Desktop

MIT-licensed desktop app — mount S3, Wasabi, Proton Drive, and other rclone backends as a local folder.

Download release

lit

Open source · macOS

MIT-licensed macOS menu bar app — battery alerts, health data, and Bluetooth device battery levels.

Download release

Off Script

Mobile app

Mobile app for couples — E2EE compatibility questions, insights, and Love Bank on iPhone and Android.

View Off Script

ThreadPool

Released

Topic-first work graph: tray, Ask, people, and a live meeting HUD. Encrypted on your devices. Mac, iPhone, Windows, and Android. Direct download is macOS.

Download for Mac

In active development

Product overview and waitlist — the app interface is not launched yet.

CastFlow

In development

Multi-persona demo generator in active development — browser orchestration, narration, and human-in-the-loop refinement. Early access waitlist open; app not live yet.

View CastFlow overview

AI Studio

Agentic workflows for building and showing software

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CastFlow

In development

Multi-persona demo generator

Orchestrate live browser sessions, generate narration, and produce polished product demos with human-in-the-loop refinement.

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code-crew

Virtual AI development team

CrewAI agents for the full SDLC — sprint planning, architecture, BDD, security review, and Definition of Done.

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Apps

Product software with thoughtful AI where it helps

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Dragon Ring

Hosted tournament ops

Hosted tournament software for martial arts and combat sports — brackets, smart schedules, and live day-of updates.

Learn more →

Off Script

Private compatibility for couples

End-to-end encrypted relationship app for iPhone and Android — compatibility insights, shared questions, and Love Bank.

Learn more →

ThreadPool

Four platforms

Your work, already clustered

Topic-first work graph on Mac, iPhone, Windows, and Android. Slack, Jira, Linear, GitHub, GitLab, Miro, mail, and docs as one topic. Tray all day, live HUD on the call, no meeting bot. Mac and Windows also expose that graph to a local AI over MCP. End-to-end encrypted. Direct download is macOS.

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Tools

Free open-source utilities from the workshop

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CloudMount

MIT · Free

Cloud storage as a local drive

Mount any rclone backend — S3, Wasabi, Proton Drive — as a folder on macOS or Windows. Tray icon, web UI, Keychain secrets.

Learn more →

lit

MIT · Free

macOS battery monitor

Menu bar app with custom alerts, health data, Bluetooth device battery, and charging lifecycle notifications.

Learn more →

Operational transparency

Who builds YourAmaryllis

YourAmaryllis is an independent software studio. Founder and engineering leadership are listed here with verifiable third-party profiles — not placeholder team pages.

Arthur Tsang

Founder & Chief Architect

Software engineer and founder of YourAmaryllis. Builds ThreadPool, CastFlow, code-crew, Dragon Ring, Off Script, CloudMount, and lit — shipping production software on Vercel, Supabase, and Google Cloud rather than demo-only landing pages.

LinkedIn (public profile): linkedin.com/in/arthurtsang
Contact: arthurtsang@youramaryllis.us
Support: support@youramaryllis.us

One studio, six live products — one in development

Everything here shares the same engineering discipline — shared Supabase infrastructure, Vercel deployments, Google Cloud AI, and interfaces you can verify from this domain. Explore each product lane above or jump straight to a live app from the list at the top.

Questions? arthurtsang@youramaryllis.us