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Cases

Production work with the decision trail: what we faced, what we refused, and what shipped.

2026

Dieta e Treino: Telegram as the app; the dashboard is a short-lived link
Bun/Windmill bot + Gemini agents; Next.js panel behind RLS; Stripe trial without making the web the home screen.

TypeScript Windmill Supabase Google Gemini · +5

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Personal portfolio and case studies
Static Astro portfolio: typed bilingual case studies, paper-first editorial UI, near-zero JS by default, plus agent-readable surfaces (llms.txt, JSON Resume, MCP). Live www keeps deferred analytics and Cloudflare Bot Fight.

Astro 5 TypeScript MDX Vanilla CSS · +5

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2025

B2B registration: Company signup as a microfrontend, cut over after A/B
Isolated the funnel, ran Unleash against the live flow, promoted when drop-off improved.

React TypeScript Astro Tailwind CSS · +4

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B2B identity: One email, many companies: multi-tenant roles in Astro + React
Replaced nick-per-company admin with Keycloak-backed roles so plans could depend on access, not one login per tenant.

Astro React TypeScript Internal Atom-ba… · +2

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Sharing React Components via CDN
Validated CDN-delivered React UI so consumers can update shared components without npm version bumps across microfrontends.

React TypeScript Custom Elements… CDN Delivery

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2022

B2B Brand Customization
Built self-serve brand tools for company admins on public profile pages so identity updates did not need support tickets.

React TypeScript Context API Styled Components · +2

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