// Service · Product & Website Development

AI-native web and product builds, live in 4 to 10 weeks.

Next.js 16, React 19, Tailwind v4. Brand-locked component system, AI hooks baked in from day one, conversion-tuned across every layout. We ship production sites and AI-native products on the same stack we run our own engines on.

// The problem

You asked for a website. They sold you a six-month brochure.

The default web build for funded teams under fifty is structurally broken in three different directions, and you have probably been quoted all three. Path one is the big agency. They scope six months, send a sixty-page SOW, hand off Figma files to a contracted dev shop, ship a beautiful static site that loads in three seconds, converts at 0.4%, and has no AI anywhere in the stack because nobody on the project knew where it would have fit. Path two is the freelancer who shipped fast on Webflow or WordPress, looked great in month one, and turned into an unmaintainable plugin graveyard by month three when your marketing team tried to ship a landing page on a Friday afternoon. Path three is the in-house engineer who is great but is also building the actual product, so the website slips behind the roadmap and stays a Notion-styled placeholder for a year.

None of these paths produce what funded teams under fifty employees genuinely need: a site that converts, ships fast, ships often, and has AI woven through the experience instead of bolted on at the end. The reason is that the people building most of the web today are either generalist design agencies who think of AI as a chatbot widget, or development shops who can build clean code but cannot write a hero headline that lands. The two skill sets rarely sit on the same team. So you get either pretty and slow, or fast and ugly, with a generic chatbot dropped in the corner because someone read a Substack about AI.

We come at it from the other direction. EOI runs four fractional AI departments on production retainers, which means we build for ourselves before we build for clients. Our own marketing site, our own client portals, the internal tooling that drives the AI Sales Department and the AI Content Department, all of it runs on the same Next.js stack we ship to customers. The result is a build practice tuned for what a funded team genuinely needs in 2026: speed, brand integrity, real AI features that move metrics, and operations that survive the day after launch.

// Why AI-native, now

A static brochure site is a 2019 deliverable in a 2026 buyer journey.

The buyer who lands on your homepage in 2026 has already had three conversations with ChatGPT about your category. They know the landscape, the alternatives, the typical price band, the standard objections. What they do not know is whether you specifically are worth a discovery call. A static brochure site is the wrong tool for that conversation. It cannot answer the question they came to ask, which is some variant of "does this fit my exact situation?" A site with AI baked in can.

AI-native does not mean a Drift bubble in the bottom right. It means semantic search across your case studies so a fintech buyer surfaces the fintech proof points in two seconds. It means a copilot trained on your help docs that resolves the seven questions the prospect would have emailed sales about. It means programmatic landing pages generated from your sales notes and shipped into Google index in days, not quarters. It means a content engine that writes blog posts in your voice and pushes them to the site without a deploy cycle. These are not novelties. They are the deliverables that distinguish a site that converts at 4% from one that converts at 0.4%, and the gap compounds across every paid dollar you spend on traffic.

The reason most builds skip this layer is simple: most agencies do not know how to wire it. They will tell you to "add AI later" because the AI is the part they cannot scope. We start with the AI hooks on day one because that is the part we run every day inside our own stack. The Next.js shell is the easier half of the build. The agentic infrastructure (retrieval, ranking, generation, evaluation, deployment) is the half that takes ten years of operating to get right, and that is the part we have already built.

// What you get

Five pillars of an AI-native production build.

Not a template restyled with your colors. A full system: design language, component library, AI feature wiring, performance discipline, and operations after launch.

01

Brand-locked component system

Tailwind v4 design tokens generated from your brand. Typography scale, color palette, spacing rhythm, motion primitives locked in code so every new page renders on-brand without a designer in the loop. Shipped as a typed React component library your team can extend.

02

AI hooks baked in from day one

Semantic search, retrieval-augmented copilots, content engines, programmatic landing pages, dynamic personalization. Wired into the build at architecture stage, not bolted on at month nine. We run the same hooks on our own stack so they ship working, not as a demo.

03

Conversion-tuned layouts

Every primary template (hero, pricing, case study, blog index, lead form) built with the conversion patterns we run across our own retainers. Above-the-fold density tuned for your buyer, CTA hierarchy mapped to your funnel, social proof placed where it moves the click-through.

04

Performance and Core Web Vitals

Lighthouse 95+ across mobile and desktop on every shipped template. Image optimization through Next.js Image, edge caching on Vercel, font subsetting, route-level code splitting. Core Web Vitals green from day one because Google ranks on it and your buyers feel it.

05

Operations and monitoring after launch

Vercel deployment with preview environments per branch, Sentry for error tracking, Plausible or PostHog for analytics, log drains to your observability stack. Optional monthly retainer for ongoing development, content shipping, and AI feature evolution after launch.

// The component approach

A locked component library is the difference between shipping in weeks and shipping in months.

Every web build we ship starts with a typed React component library. Not a Figma library, not a style guide PDF, an actual TypeScript package living in the codebase with Storybook entries for each component, accessibility annotations, and full prop typings. The reason is simple: a design system that lives in Figma rots the moment the first developer ships a page, because the developer cannot import from Figma. The system has to live where the code lives or it stops being a system.

We generate Tailwind v4 tokens from your brand inputs (palette, type scale, motion language, spacing rhythm) and lock them into a single source. Every primitive (button, card, badge, input, table row, hero block, pricing tier) renders against those tokens. Restyling the entire site is a matter of changing a handful of token values, not crawling through every page. When you decide six months later that the accent color needs to shift two clicks warmer, it is a one-line change and every page in the system updates on the next deploy.

The conversion-tuned layer sits on top. We do not write hero blocks from scratch every time. We have a library of patterns (split hero with secondary CTA, full-bleed video hero with three-column proof, pricing card with comparison overlay, FAQ with structured-data emit) that we have run across enough retainers to know which patterns move which metrics for which audiences. New pages plug into the library. Your marketing team or our content engine can ship a landing page on a Thursday afternoon and have it live, brand-correct, and Lighthouse-green by end of day.

This is what separates a build that decays after launch from one that compounds. The agency build that ships beautifully and then becomes unmaintainable is the build where the design system never made it out of Figma into code. The freelancer build that becomes a plugin graveyard is the build where there was no component library at all. The build that keeps shipping after launch is the one where the system is the deliverable, not just the pages.

// The numbers

What a typical build looks like by the numbers.

Honest figures from recent engagements. Your build will sit somewhere in these bands depending on scope, depth of AI integration, and how much existing brand work you arrive with.

4 to 10
Weeks from kickoff to live
4 weeks for a focused marketing site, 8 to 10 for a full product build
95+
Lighthouse score target
across mobile and desktop, performance, accessibility, SEO
2.4x
Conversion lift on Sprinto rebuild
vs the previous Shopify template they shipped on
40 to 80
Typed React components shipped
in the locked component library, fully documented and reusable
// Side by side

Agency or freelancer build vs EOI Web Dev.

Same brief, three different outcomes. Honest read on where each path lands. We are not always the right fit, but the trade-offs are worth knowing before you sign.

Agency or freelancer
  • 6 months scoped, ships in 9
  • Figma handoff, dev re-implements badly
  • AI bolted on at the end if at all
  • Static brochure that converts at 0.4%
  • WordPress or Webflow plugin graveyard at month 3
  • Lighthouse 60 mobile, you find out at launch
  • Lost in translation between agency and your team
  • After launch you are on your own
EOI Web Dev
  • 4 to 10 weeks scoped, ships on time
  • Designer and engineer on the same person or pod
  • AI hooks wired into the architecture on day one
  • Conversion-tuned templates from a portfolio of running retainers
  • Next.js 16 + Tailwind v4 codebase your team can ship into
  • Lighthouse 95+ enforced in CI on every preview deploy
  • Direct line to the operator running the build
  • Optional retainer for ongoing dev, content, and AI features
// The build sprint

From discovery call to live site in five steps.

The shape is the same across marketing sites and AI-native products. Scope changes the depth of each step, not the order. We commit to a date in step one and we hit it.

Step 01

Week 1 · Discovery

We map the goal, the audience, the funnel, the brand. We surface where AI features will move metrics and where they will not. Output is a written scope: page inventory, component list, AI feature spec, deployment plan, and a firm timeline. If your brief does not need us, we will say so.

Step 02

Week 1 to 2 · Design system

Tailwind v4 tokens generated from your brand, component library scaffolded in TypeScript, design language locked in code. Every page that ships from here renders on-brand without a designer babysitting it. You sign off on the system, not on individual page mocks.

Step 03

Week 2 to 6 · Build

Next.js 16 App Router, React Server Components where they fit, Tailwind v4, deployed to Vercel from the first commit. Preview environments per branch so your team can review live URLs, not screenshots. We ship daily and you get a dated changelog at end of week.

Step 04

Week 4 to 8 · AI integration

Semantic search, copilots, content engines, programmatic pages, whatever the discovery scoped. Wired against your data, your CMS, your CRM. Evaluated on a real test set before launch so we know it works before your buyers do.

Step 05

Week 8 to 10 · Launch and monitoring

DNS cutover, Sentry wired, analytics live, runbook delivered. We watch the first two weeks of traffic with you. If something breaks, we fix it. If conversion needs a tune, we tune it. Optional retainer takes the build forward from here.

// Inside the build

What shipping in 4 to 10 weeks looks like end to end.

Week one is a single discovery call followed by a two-day writing sprint on our side. By end of week one you have a written scope with a page inventory, a component list, an AI feature spec, and a delivery date. The scope is short and concrete. Twelve pages, twenty-eight components, three AI features (semantic case-study search, retrieval copilot trained on your help docs, programmatic landing pages from a CSV of ICPs), live by Friday of week six. You sign the scope and the sprint begins on Monday.

Week two ships the design system. Tokens, type scale, color palette, spacing primitives, motion language, all generated in Tailwind v4 from your brand inputs. Component library scaffolded in TypeScript with Storybook entries so your team can browse what is built. By end of week two, the hero, nav, footer, button, card, and form primitives are in place and deployed to a preview URL on Vercel.

Weeks three through six are the build proper. We ship daily. You get a Loom recap on Friday with what landed, what is next, and where decisions need your input. Pages get built against the component system, AI features get wired in parallel against your data sources, and copy goes in as it gets approved. The preview URL stays live the whole time so your team can pull up the site mid-build and click around. Nothing is hidden until launch day.

The last weeks are integration testing, performance tuning, and content backfill. Lighthouse gets pushed past 95 across the templates that matter. AI features get evaluated on real test data, not synthetic prompts. Content goes in, links go in, the redirect map from the old domain lands. Launch is a DNS cutover, not an event. By Monday after launch you are watching real traffic on real templates with real AI features wired. By month two, if you took the retainer, you are shipping new pages and new AI features every week against the same locked system.

Being detail oriented has become my second nature. And I have to say that EOI Digital fully understands the importance of this. The level of work they've put in is truly impressive. I believe this is why it's easy for them to deliver my vision for the brand we're working on.
Pawlo Misolas Vargas
Marketing Manager · Sprinto
// Pricing

Per-project pricing, scoped together in the discovery call.

Per-project · 4 to 10 week build · Optional monthly retainer after launch

We do not sell tiers. We scope the build against the goal, the page count, the AI features, and the timeline. You get a fixed price and a fixed date before any code is written. Hardware (Vercel, Sentry, observability) billed at cost.

  • Next.js 16 + React 19 + Tailwind v4 codebase, yours from commit one
  • Brand-locked TypeScript component library with Storybook docs
  • AI features wired against your data: search, copilot, content engine, programmatic pages
  • Deployment to Vercel with preview environments per branch
  • Core Web Vitals enforced in CI: Lighthouse 95+ across templates
  • Sentry error tracking and analytics wired before launch
  • Two weeks of post-launch support included in every build
  • Optional monthly retainer for ongoing dev, content, and AI feature evolution
Book a discovery call
// Pair with a content engine

A site that ships fast and converts is half the work. Filling it with on-brand content that ranks on Google and drives compounding organic traffic is the other half. Most of our web builds pair with the AI Content Department on a monthly retainer, so the engine that ships the build keeps shipping pages, blog posts, and programmatic SEO into it every week after launch.

See the AI Content Department
// FAQ

The questions founders ask before they apply.

01What stack do you build on?
Next.js 16 with App Router, React 19, Tailwind v4 for styling, TypeScript end to end. Deployed to Vercel with edge caching. Database varies with use case: Supabase for most, Postgres direct for higher-control engagements, Convex when real-time matters. We ship the stack we run our own production engines on.
02Do you handle design, or do I need to bring my own?
Both. Design system is part of the build. If you have a brand book, we lock it into code. If you arrive with nothing, we run a one-week brand sprint at the front of the engagement. Either way you leave with a typed component library, not a Figma file your dev team has to re-implement.
03What about a CMS? Can my marketing team ship content without bothering engineering?
Yes. Most builds ship with Sanity, Contentful, or Payload as the content layer. Marketing edits pages, posts, and copy from a clean UI. The site rebuilds on publish via incremental static regeneration. No dev tickets to change a hero headline. We pick the CMS in discovery based on team size and content velocity.
04Can you integrate with our CRM, HubSpot, Stripe, or other tools?
Yes. Lead forms route into HubSpot, Salesforce, Attio, or whatever you run. Stripe wired for payment flows, subscriptions, or one-time products. Analytics piped to your warehouse. We treat the website as one node in your existing stack, not a standalone island. Webhooks and API integrations are part of every build at no extra scope.
05Who maintains the site after launch?
Two options. Take the optional monthly retainer and we keep shipping (new pages, content, AI features, performance work). Or take the handoff at launch and your team owns the codebase from there. The codebase is yours from commit one either way. We do not lock anything behind us. Most clients pick the retainer because the post-launch backlog is real.
06Do you build mobile apps too?
Yes, for select engagements. React Native via Expo when the product needs native, PWA when web is enough. We do not build mobile for the sake of mobile. The discovery call surfaces if your audience truly needs an app, and we will say so if a responsive web build does the job for less money.
07Can you migrate us from WordPress, Webflow, or Shopify?
Yes. We have run migrations from WordPress, Webflow, Shopify, Squarespace, and Wix into Next.js. Content gets exported and reimported into the new CMS, URLs get mapped with 301 redirects, SEO equity preserved. The migration is part of the build sprint, not a separate scope. Most marketing teams notice a Core Web Vitals jump in the first week after cutover.
08What is the timeline from first call to live?
Focused marketing site: 4 to 6 weeks. Marketing site with deep AI integration: 6 to 8 weeks. AI-native product build with custom auth, data model, and integrations: 8 to 10 weeks. We commit to a fixed date in the written scope at end of week one. If we miss it, we eat the overrun.
// From the notes
// Also worth a look
// Ready to ship this?

Start a AI-Native Web & Product Development sprint. 14 days from kickoff.

Apply in 7 questions. EOI reviews every application within 24 hours.