Service: SaaS / Web App Development (Next.js + Supabase) by Arnau López sellesService: SaaS / Web App Development (Next.js + Supabase) by Arnau López selles
Service: SaaS / Web App Development (Next.js + Supabase)Arnau López selles
Cover image for Service: SaaS / Web App Development (Next.js + Supabase)
I build full SaaS products end to end — design and code — with Next.js, Supabase, and Vercel. Not a landing page with a waitlist form: an actual working product with auth, a database, and a core feature your first users can use.
This comes from shipping my own SaaS products solo, design through deployment, so I know where these projects usually get stuck — auth edge cases, database structure that doesn't hold up, deployment configs that work locally and break in production. I handle the whole thing myself, so the result is one coherent product, not pieces stitched together.

What you'll get (deliverables)

A working web app (up to 6 core screens): landing/auth, dashboard, and one core feature fully functional
Supabase backend (auth, database, and storage as needed)
Deployed live on Vercel — a real URL you can share, not a local demo
Clean, organized codebase you (or another developer) can build on
1 round of revisions

What's NOT included (available as add-ons)

Payments/Stripe integration (quoted separately based on complexity — one-time checkout vs. subscriptions vs. marketplace payouts vary a lot in scope)
Transactional email setup (e.g. Brevo/Resend)
Features beyond the agreed MVP scope (e.g. additional core features, admin panels, complex integrations)

My process

Kickoff — a short call or async brief: what the product does, who it's for, and which feature matters most to get right first.
Structure — map the data model and core flow before writing any UI, so the app holds together as it grows.
Build — development in stages, with progress shared as it happens.
Deploy — first working version live on Vercel within 2 - 3 weeks.
Revision — one round of feedback and fixes.
Handoff — final codebase, organized and documented enough to hand off or continue building.

What I need from you to get started

A short description of the product and its core user flow
Which single feature is the most important one to get right first
Any existing brand assets (logo, colors) — if you don't have any yet, I can define a light direction as part of the project
FAQs

Example work
Volea — Product walkthrough. Adding players,
Starting at$1,800
Duration3 weeks
Tags
Next.js
Supabase
Tailwind CSS
Vercel
Product Designer
UI Designer
Full Stack Developer
SaaS
Startups
Service provided by
Arnau López selles proValencia, Spain
3
Followers
Service: SaaS / Web App Development (Next.js + Supabase)Arnau López selles
Starting at$1,800
Duration3 weeks
Tags
Next.js
Supabase
Tailwind CSS
Vercel
Product Designer
UI Designer
Full Stack Developer
SaaS
Startups
Cover image for Service: SaaS / Web App Development (Next.js + Supabase)
I build full SaaS products end to end — design and code — with Next.js, Supabase, and Vercel. Not a landing page with a waitlist form: an actual working product with auth, a database, and a core feature your first users can use.
This comes from shipping my own SaaS products solo, design through deployment, so I know where these projects usually get stuck — auth edge cases, database structure that doesn't hold up, deployment configs that work locally and break in production. I handle the whole thing myself, so the result is one coherent product, not pieces stitched together.

What you'll get (deliverables)

A working web app (up to 6 core screens): landing/auth, dashboard, and one core feature fully functional
Supabase backend (auth, database, and storage as needed)
Deployed live on Vercel — a real URL you can share, not a local demo
Clean, organized codebase you (or another developer) can build on
1 round of revisions

What's NOT included (available as add-ons)

Payments/Stripe integration (quoted separately based on complexity — one-time checkout vs. subscriptions vs. marketplace payouts vary a lot in scope)
Transactional email setup (e.g. Brevo/Resend)
Features beyond the agreed MVP scope (e.g. additional core features, admin panels, complex integrations)

My process

Kickoff — a short call or async brief: what the product does, who it's for, and which feature matters most to get right first.
Structure — map the data model and core flow before writing any UI, so the app holds together as it grows.
Build — development in stages, with progress shared as it happens.
Deploy — first working version live on Vercel within 2 - 3 weeks.
Revision — one round of feedback and fixes.
Handoff — final codebase, organized and documented enough to hand off or continue building.

What I need from you to get started

A short description of the product and its core user flow
Which single feature is the most important one to get right first
Any existing brand assets (logo, colors) — if you don't have any yet, I can define a light direction as part of the project
FAQs

Example work
Volea — Product walkthrough. Adding players,
$1,800