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Sanctuary Computer
Mill website hero showing a hand cracking an egg into a teal bowl on a marble countertop.

Internet of Things

Our engineering team specializes in building software and APIs for hardware products.

Custom OS, firmware, cloud APIs, pairing flows and companion apps for connected devices.

Highly available, always on

Our IoT software infrastructures are built to be highly available, fast, and reliable, powering award-winning devices and the user experiences that depend on them.

Our Process

  1. We like to start new engagements with our Technical Blueprinting phase. We listen, research, test, and consolidate our plan into an architecture document that guides the build.

  2. Our development process is agile, transparent, and collaborative, managed through lightweight weekly touchpoints, tight feedback loops, and waves of iteration.

  3. As your product rolls out, we’re standing by, fixing bugs, tweaking codepaths, and shipping features in realtime, from mass production at the factory to your first customer ship, and beyond.

We’re friendly, transparent, communicative and hospitable, as it’s our best relationships that produce the most meaningful work.

Tools, not apps.

Light doesn’t have a massive deck of brand guidelines and product strategy, it has a philosophical starting point: build tools that enable people to live better, which all other decisions stem from.

For Light, minimal UX isn’t an aesthetic treatment, it’s a choice, rooted in ethics, that our team understands and implements innately and autonomously.

As trusted, long-term partners, our developers grew into holistic stewards of the entire Light III product roadmap. Our small team was trusted to make high-impact choices around architecture, tooling, and feature behavior without layers of overhead.

Read more about Light III
We offer staff augmentation services, too
Hands holding the Light Phone III device with its small camera lens facing forward.
A Light Phone III propped on a brand kiosk showing the product tagline ‘A tool for a better life’.

Take a deep dive

The LightOS is a minimalist smartphone operating system, designed to be used as little as possible.

Running on a Qualcomm Snapdragon with a custom rendering pipeline to power Light II’s beautiful E-ink screen, the LightOS is based on Android, and supports all mainstream smartphone functionalities such as Bluetooth, Wi-Fi, Contact Sync, and more.

Building LightOS with React Native
Light Phone prototypes lined up on a desk during an early development session.

Tools for Humanity

The founders of Nest wanted to build a smart food waste bin that could measurably cut household greenhouse gas emissions. We helped them go to market.

A family in a sunlit kitchen drops food scraps into the Mill kitchen bin.

The Future of Food Waste

The Mill kitchen bin is an ingenious device that works to convert wasted household food into Food Grounds™ for chickens.

We began working with the Mill team when their bin was in prototype, working hand-in-hand from foundation to launch.

We started with a deep technical blueprint, thorough enough to deliver on time and on budget, loose enough to evolve as we learned the product alongside Mill.

We advised Mill on which technologies, frameworks, and development practices would make their e-commerce website, user intake flow, and Android and iOS apps a reality.

Learn more about Mill
Four lifestyle stills of people using the Mill kitchen bin, set against a yellow background strip.

We strive to build thoughtful, human-centric products through an open and transparent approach to timelines and estimates.

Read more about how we work
Six-person Mill team video call grid showing developers and designers smiling.

From sketch to $500m acquisition

To kick off the project, Brynn, the founder of Mirror, shared this drawing of her vision for the product. This was the very first kernel of the idea for the Mirror, which went on to be acquired by lululemon for $500m.

Sketch
A Mirror by lululemon device leaning against a wall in a bright home studio.

Form Meets Function

The product’s unique physical form became a foundational consideration in shaping the interface experience. We designed the UI to complement the hardware’s distinct geometry, creating interactions that felt natural, intuitive, and deeply integrated with the device itself.

Read up on our work with Mirror
Mirror device showing a Yoga Arm Raise pose with on-screen workout controls.
Mirror device showing an Interval Training program with workout count and difficulty rating.

Bridging Device and Mobile

We designed the experience to move seamlessly between device and mobile, ensuring each touchpoint felt connected and intuitive. User journeys were carefully mapped to support smooth transitions, whether users were interacting on-screen or managing settings through their phone.

See more of our Greenfield Innovation
Mirror device exploded view showing the internal mounting bracket and display module.
A woman performs a side bend stretch in a sunlit room beside a Mirror device showing her live.

We’re fluent in 15+ programming languages, actively managing fleets of servers. We’re a boutique team of makers who execute highly technical projects.

Today, our team is worldwide, but we started in NYC, and we’re still mostly based in the US Eastern timezone.

hello@sanctuary.computer
Summer Camp