Projects and case studies
A selection of what I've shipped, the what and the how.
How I think about this work →Claudio for Android
A personal productivity app for Android. Supabase holds the data, Room keeps it working offline, and Claudio is the mobile interface that makes it usable day-to-day — with Claude on top for daily briefs, task summaries, and a conversational assistant that can act.
Kotlin · Jetpack Compose · Room · WorkManager · Supabase · Claude API
2026Solaar
A multi-agent development agency built entirely with Claude Code. One orchestrator, 24 specialized agents, and an enforcement layer that makes its own rules unbreakable — the system knows your stack history, your production state, and which structural patterns in generated code are likely to fail before they reach users.
CLAUDE CODE · AGENTS · MCP · GITHUB · CLAUDE DESIGN
2026 · HEALTH · AI · DESIGNVitals
Vitals by mariansan — a personal health intelligence platform for Galaxy Watch and Fitbit. Wearable data flows in automatically from two sources; Claude Sonnet synthesizes it into a daily briefing, trend analysis, and an AI coach.
Next.js · Supabase · Claude API · Firebase · Android · Google Health API · Recharts · Tailwind CSS
2026 · MOBILE APP · AIBalboa Finance
Personal financial assistant. Ingests credit card statements from Gmail, captures physical receipts via Claude Vision, categorizes across 11 fixed spending buckets, and surfaces pending transactions for one-tap confirmation before anything gets persisted.
Expo · React Native · Next.js · Claude API · Notion API · Supabase · Gmail API
2026 · AIClaudio Chief of Staff Bot
An AI-powered Telegram bot designed to act as a personal Chief of Staff. Claudio helps manage priorities, draft communications, track tasks, and keep things moving — available wherever you are.
Telegram · Claude · REST API · n8n · Supabase
2026 · WEB APP · DASHBOARDControl Tower
A personal Claude Code usage dashboard built into mariansan.io. Tracks token consumption across all projects — input, output, cache reads/writes, estimated cost, sessions, and turns. Supabase-backed ingest API, HMAC-SHA256 cookie auth, Recharts daily breakdown with range picker, and two sync scripts: one for org accounts via the Anthropic Admin API, one reading local SQLite directly.
Next.js · Supabase · Recharts · Anthropic API · SQLite
2026 · WEB APP · AITrend Intelligence
Full-stack AI trend intelligence platform for Central America and the Caribbean. Two verticals — food & beverage and pet nutrition — from a single codebase. Type a category and get a complete strategic brief in under 3 minutes, grounded in live signals from Google Trends, YouTube, Reddit, and Firecrawl.
React 19 · Vite · Tailwind CSS · Claude Sonnet · Firecrawl · Google Trends · YouTube API
2026 · AI · TOOLSCustom MCPs Development
Integrated my applications with custom Model Context Protocol servers to extend my AI ecosystem. Built to ensure the right tools available when I need them — connecting my existing stack directly to my AI workflows.
Next.js · MCP SDK · fal.ai · Zod
2026 · AILumen News Bot
An AI-powered Telegram bot that curates and delivers personalized news briefings. Lumen aggregates content from multiple sources and surfaces what matters most to each user — making it easy to stay informed without the noise.
Telegram · Claude · REST API · n8n · Supabase
2026 · WEB APPVeggieCorner
A recipe journal focused on plant-based cooking, integrated with Claude AI for recipe and image creation. VeggieCorner helps me keep track of favorite recipes and lets users explore vegetarian and vegan dishes with a clean, modern interface built for everyday use.
Next.js · Drizzle · PostgreSQL · Claude AI · fal.ai