37.69°N 122.47°WWeb apps · Shopify · AI
I build the web apps and Shopify stores growing businesses run on.
I’m Luna, the engineer behind Blue Nebula in the San Francisco Bay Area. I design and build SaaS products, marketplaces, AI features and Shopify storefronts, and I take over codebases other teams left unfinished.
Top Rated Pluson Upwork100%Job Success3,700+hours loggedVerified on Upwork · as of October 2026 ↗
Clients include
- Grubby AI
- One Divine Source
- Cypress Clothiers
- Coop De Lavender
- Appstle
- RollDeep
- Experience Therapy Group
Selected work
Every client here still works with me. Each case study walks through what I built and how it turned out.
Fig. 03 · AI SaaS · Jul 2024 – present
Grubby AI
Building an AI writing platform from its first commit to 1.6M users
I've built Grubby AI since its first commit in July 2024, including the web app, billing, admin tools, Chrome extension, MCP connector and iOS app.
1.6M+ total users
Case study
Fig. 04 · Online marketplace · Nov 2025 – present
One Divine Source
Taking over a two-sided marketplace and keeping it shipping
In November 2025 I took over One Divine Source, a spiritual-guidance marketplace, from a previous agency, and have shipped new features every month since.
Fig. 05 · Menswear · May 2024 – present
Cypress Clothiers
A headless Shopify store for a multi-brand menswear shop
$5K monthly revenue
Case study
Fig. 06 · Consumer SaaS · Jul 2026 – present
Social Snitch
Turning an AI-built prototype into a production subscription app
What I build
Most projects fall into one of these four, and plenty cover two. I build every one myself, from the first call to the years after launch.
- 01 / 04
Web app & SaaS development
Next.jsTypeScriptSupabaseStripeCustom SaaS products, marketplaces and internal tools, from the first version to the one that has to scale.
See: Grubby AI, One Divine Source
Fig. 07 · A typical SaaS stack - 02 / 04
Shopify & headless commerce
ShopifyLiquidNext.jsStorefront APICustom Liquid themes and headless Next.js storefronts, plus migrations to Shopify that keep your search rankings.
Fig. 08 · Headless: your front end, Shopify’s checkout - 03 / 04
AI features & integrations
OpenAIAnthropicQueuesSupabaseWriting tools, assistants, document generation and MCP connectors, built into the product you already have.
See: Grubby AI, One Divine Source
Fig. 09 · Long AI jobs run in a queue - 04 / 04
App rescue & takeovers
Next.jsReactTypeScriptNode.jsInherited a half-finished codebase or an AI-built prototype? I audit it first, then stabilize it so you can keep shipping.
Fig. 10 · A takeover starts with an audit
How a project runs
You approve a written plan before any work starts. After that, you get a preview link every week and can click through what’s been built so far.
Step 01
Discover
A call about what you need, then a written scope with a fixed price.
Step 02
Design
Wireframes or a clickable prototype you review before any code is written.
Step 03
Build
I build in small pieces and send a preview link every week, so you can try each feature as it lands.
Step 04
Launch & grow
After launch I watch for errors and keep improving the product. Several clients have stayed on for two to three years.
Ways to work together
Project build
A defined scope at a fixed price, agreed before work starts.
Rescue sprint
An audit of the code you inherited, then a focused sprint to make it stable.
Ongoing partner
A monthly retainer for new features and fixes after launch.
What clients say
Luna was impressively clear and organized in communicating the amount of work that would be required. With previous contractors, we have felt that the work was a mystery… This was not the case with Luna! We jumped up in google rankings overnight with the new website.
She was able to get up and running in my codebase quickly. With very little visual design from me, she was able to elevate complex sections of my admin system from very basic and raw screens to beautifully designed and usable interfaces.
Luna is an excellent React developer. Luna’s performance is great and the code quality is amazing too. I highly recommend and will hire again in the future.
We hired Nebula to build a chatbot for our website and they delivered beyond our expectations. The project was completed on time.
Who you’ll work with
Hi, I’m Luna.
I started as a front-end developer at Dolls Kill, building pages and checkout features for a busy online store, then went independent. Since then I’ve built the platform behind Grubby AI, an AI writing app with more than 1.6 million users, and Shopify stores for brands like Cypress Clothiers. I also take over products that other teams left half finished.
Blue Nebula is my studio, and it’s small on purpose: the person on your first call is the person writing your code, and still around when you need the next feature.
- Based in
- Daly City, CA · San Francisco Bay Area
- Works with
- Founders and growing brands across the US
- Previously
- Front-end developer at Dolls Kill, 2020–22
- Education
- UC Berkeley
- Scholar
- Gates Millennium Scholar
- Languages
- English and Spanish
- On Upwork
- Top Rated Plus on Upwork · 100% Job Success · 3,700+ hours logged
From the blog
All postsApp rescue · Oct 12, 2026 · 6 min read
Is your vibe-coded app ready for real users?
A pre-launch checklist for apps built with Lovable, Bolt or Replit Agent: who can read your data, secret keys, payments, slow jobs, errors and backups.
App rescue · Oct 12, 2026 · 6 min read
Supabase RLS mistakes in AI-built apps, and how to fix them
The row-level security mistakes that leave Supabase data open in apps built with Lovable, Bolt or Replit, how to find each one, and the SQL to fix it.
E-commerce · Oct 28, 2025 · 8 min read
AI shopping agents are rewriting e-commerce SEO and funnels
AI shopping agents and in-chat checkout are changing how people find and buy products. How to get your product data and pages ready for them.
Common questions
Something else on your mind? Email mail@bluenebula.dev.
How much does a project cost?
It depends on the scope. Every project starts with a free estimate and a written, fixed price, so you know the cost before any work begins.
How long does it take?
Shopify builds usually take 3–6 weeks, and a first version of a custom web app 4–8 weeks. You get the timeline in writing with the estimate.
Can you take over code another team started?
Yes. I start with a short audit that covers what’s risky and what to fix first, then stabilize the code and keep shipping. I’ve taken over a marketplace from another agency and turned prototypes into production apps.
Should my store be on Shopify or headless?
Most stores do best on a custom Shopify theme: it’s faster to build and easy for your team to manage. A headless store, with a custom Next.js front end on Shopify, makes sense when you need a fully custom experience or a lot of editorial content.
Do you work with clients outside the Bay Area?
Yes. I’m based in Daly City, CA and work with clients across the US, all remotely.
Who will I be working with?
Me. There’s no account manager in between: I write the code, and you talk to me directly.
What happens after launch?
I stay on for fixes and new features, either as needed or on a monthly retainer. Several clients have worked with me for two to three years.
Start a project
Tell me what you’re building.
Email is the fastest way to reach me, and I usually reply within a day. Or use the form, and I’ll get back to you the same way.
37.69°N 122.47°W · Daly City, CA · Remote across the US