Fletcher Hills Systems is a full-stack studio led by Jonathan 'Tyson' Nevels. We build production web apps, AI integrations, and marketing sites on Next.js, Supabase, Firebase, and Stripe — from MVP to acquisition-ready.
Eight distinct offerings, run from one operator. Every engagement is scoped, priced, and shipped to production — never an open-ended hourly bill.
End-to-end product builds on Next.js + Supabase / Firebase. Auth, RLS, real-time data, background jobs, CI/CD — shipped to your domain.
Claude, OpenAI, and Gemini wired into your product: chat, RAG, agents, document summarization, voice, code tooling. Private data in, typed outputs.
Conversion-tuned Next.js static sites with schema.org, GA4, GTM, Meta Pixel, Core Web Vitals < 2s. Deployed to Vercel or Firebase.
Two-sided and multi-tenant platforms with Stripe Connect, Firestore or Postgres, role-based access, and operator admin UIs.
Stripe Checkout, Stripe Connect, webhooks, metered billing, customer portals, refunds. PCI-safe patterns, real production handling.
Deep audits of an existing app: security, query performance, Lighthouse, bundle analysis, accessibility. You get a written report + PR.
Operator surfaces for non-technical teams: CRUD UIs, dashboards, queue monitors, content managers. React / Next.js / shadcn-based.
Web-first indie games (Phaser / Unity WebGL) with first-class commerce, player accounts, and music/asset marketplaces built in.
A cross-section of what Fletcher Hills Systems ships — live production sites, retained clients, in-development platforms, and scoped roadmap builds.
Tony Trowbridge — Plein Air Watercolorist
Five-page portfolio, gallery, and donation platform for a San Diego plein-air watercolor artist — press-featured, Firebase-hosted, conversion-tuned.
Tevita Care — Regional Center Vendor (Service Code 531)
SEO-engineered marketing site for a licensed Adult Day Program — local search, lead capture, GA4 / GTM / Meta Pixel wired for paid growth.
Private music-industry client (demo buyer: major-label producer)
A&R pipeline for discovering, tracking, and signing artists — real-time dashboards, demo review with time-coded comments, deal kanban, RBAC.
Real businesses Fletcher Hills Systems ships for right now — from San Diego art, to healthcare services, to music-industry SaaS and indie games.
14-day buyer-demo sprint
Technical lead + scoping
Additional work under NDA. See full case studies →
Tell us what you're building. You'll get a written scope, a dated timeline, and a fixed quote — free, in under a week.