Mobile and app development for London creative agencies
One core, two builds,web and native
App Store review is usually the slowest part, and none of it is code. Most of what gets briefed as an app is a website that behaves properly on a phone, and you will hear that first. Push notifications, the camera, two screens that keep working on the Tube with no signal. Those genuinely need a native shell, sharing one TypeScript core with the web build, so a Monday rule change lands in both.
Book a 15-minute callSend the details below. I'll reply by email to arrange a time.
London, UK · Available for new projects
What actually slows creative and marketing agencies
The build was costed by whoever pitched it
The clickable prototype has four interactions in it. One of them is an afternoon and one is weeks of work, and the estimate treated them as the same kind of thing. The difference shows up in the build, when the number is already in a signed scope.
The freelancer stops answering at eighty per cent
The repo is on a personal GitHub account, the staging site is on their hosting, and the environment variables were pasted into a DM in March. Picking it up costs more than starting it did, and the launch date has not moved.
The client must never learn you subcontracted
White label means you are the supplier of record, so the calls, the commits and the handover documents all have to carry your name. A subcontractor who wants the logo on their site and the client in their Slack is the wrong one for this. The one time it slips is the client you lose.
Your best client outgrows the page builder
The brochure site was fine for three years. Then they want a login, a quote tool and stock pulled from a system in their warehouse, which is where Webflow and Contentful both stop. You either turn the work down or promise something the studio cannot maintain.
mobile and app development
Most of what gets asked for as an app is a website that works properly on a phone. You will hear that first. Where the platform genuinely needs a native shell, for push, camera or offline work, it gets one. The web build and the app share one TypeScript core, so the domain model and the API layer are written once, by one person. A rule changes in one place, and both builds inherit it.
- A written answer on whether to build
- Before anything gets built you get the honest read on whether an app is the right answer, with the mobile web version priced next to it. If the answer is no, the document says no.
- One codebase behind the web and the apps
- The website, the iOS app and the Android app are built from the same code and the same API layer, so a change to the rules is written once. No second copy quietly disagrees with the first.
- Getting through App Store and Play review
- Signing keys, privacy forms, the age rating and screenshots at every size go in under your own store accounts. If a build gets knocked back, getting it through is my job and not yours.
Selected projects
Products I built and open-source projects I maintain. Open a project to see the work for yourself.
- 01
2025 →Delta Xi
E-commerce · Brand
A mathematics apparel brand on a storefront I wrote from scratch
I built the cart, checkout, product recommendations, affiliate programme and support desk, and run the infrastructure myself.
- Next.js
- React Server Components
- Stripe
- Auth.js
- Tailwind
- Umami
- Chatwoot
- Cloudflare
Founder · Engineer · Operator
- Custom checkout on Stripe + Klarna
- Server-rendered recommendation engine
- Self-hosted analytics and live chat
- 50+ STEM explainers driving organic search
- 022026
Dr Flavia Pretti Aslanian
Healthcare · Practice site
A bilingual dermatology website for a practice in Harley Street and Wimbledon
A new landing page guides patients to medical, aesthetic and surgical care. The practice edits its own content, and staff have a password-protected dictation tool in the same app.
- Next.js
- Sanity CMS
- Tailwind v4
- Radix
- Motion
- ISR
- Railway
- Cloudflare
Design · Build · Deploy
- 84 published English and Portuguese routes
- 72 treatment pages with clinic-editable content
- Custom before/after comparison UI
- Internal clinician dictation tool
See 4 more projects
- 03
2026Continuum
Web3 · DeFi protocol
A Solana DeFi protocol for 24/7 synthetic exposure to real-world assets
Deposit USDC, mint matched long and short tokens at NAV, sell the leg you don't want. A constant-product invariant keeps the pair redeemable back to the deposit.
- Rust
- Anchor
- Solana
- TypeScript
- Pyth
- Next.js
- Bun
- Railway
Pre-mainnet. Devnet markets, audits pending.
Protocol · Frontend · Infra
- 5 Solana smart contracts in Rust
- 8 synthetic markets on devnet
- 4-state oracle risk machine
- Volatility-scaled fee curve
- 042026
Dray
AI tools · Product website
A product website for keeping project context across AI agents
An editorial landing page introduces shared project context, shows illustrative agent workflows and explains setup and privacy ahead of beta.
Beta coming soon. The public demos illustrate the workflow; they are not live agent connections.
Design · Build
- Interactive agent-linking illustration
- Project-context walkthrough
- Setup and privacy guidance
- 05
2026Tallylamp
Open source · Browser infrastructure
A browser for AI agents that you can watch and take over
I built the browser service, dashboard, MCP server and public website. Agents use Chrome on your server while you watch the same browser live. Take control to sign in, then hand it back; saved profiles carry between sessions.
- TypeScript
- Next.js
- Chrome
- MCP
- SQLite
- Docker
- Railway
Public site at tallylamp.dev. The browser service and dashboard are self-hosted.
Creator · Engineer · Maintainer
- Live viewing and explicit human handoff
- Separate agent permissions and reusable profiles
- MIT licensed, with a Railway deploy template
- 06
2025 →CarClout
SaaS · AI content engine
A subscription app that turns a phone photo of a car into something worth posting
Upload a photo, pick a template, get the edit back a moment later. Thirteen AI models sit behind a metered credit ledger, next to a layer editor, a post scheduler and a live chat room.
- Next.js
- SurrealDB
- Auth.js
- Stripe
- fal.ai
- Cloudflare R2
- Stream.io
- Railway
Engineering · Infra · SEO
- 724 generated landing pages, all live
- 128 API routes behind one app
- 13 AI models on a metered credit ledger
- Instagram posting, scheduling and analytics
One runs on the client's own domain and one is internal to theirs, so there is nothing here of mine to show you.
- ClientJooyontechAI sales assistant, Korean and English
- ClientPHFWeb, AI and automation · private medical practices, UK
Not everything is public. A fair amount of the work sits in private repositories I cannot hand you a link to. Ask, and I will walk you through it.
Ask to see moreHow a project runs
- 01Before code
Scope
One call, then a written spec. What it does, what it deliberately does not do, and what milestone one is. You sign that off before I write a line.
- 02Early
First deploy
A narrow slice that actually works, running where it belongs. A URL you can open, a build on your phone, a job on your own servers. Real data, real hosting, no placeholder screens.
- 03Ongoing
Build in the open
Deploys land as the thing fills in, not in one drop at the end. You watch it happen. And you get to change your mind while changing it is still cheap.
- 04Handover
Yours to run
The product runs in your accounts, with the domain, hosting and documentation under your control. Source-code transfer is quoted separately; we agree what is included during scoping.
Rafael Aslanian
I got my hands on a computer at 6 and never really stopped.
Now it is decentralised finance, tokenising real-world assets and topological deep learning, then building whatever those turn into. Continuum came out of that. So did Delta Xi (δξ, an infinitesimal change in a random variable).
Bossa nova and MPB were always on at home, so I sang before I played anything. Guitar and piano came later, then jazz.
- Based
- London, UK
- Languages
- English, Portuguese; intermediate Spanish and Chinese
- Focus
- Web3, DeFi, real-world asset tokenisation
- Also
- Music
Have an idea? Tell me.
Need the audience too?
I can build the thing. Getting people to notice it is a separate job, and not mine. For that I work with Nytforge, who film, edit and put the work in front of a local audience. They are strongest with automotive and local businesses.