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Achievement: Pair ExtraordinaireAchievement: Pull Sharkx2

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Achievement: Pair ExtraordinaireAchievement: Pull Sharkx2

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ErgoCodes/README.md

Hi, I'm Andy

Fullstack developer (TypeScript, React, Node.js) from Cuba, now based in Curitiba, Brazil. I learned to build software on slow, expensive connections, so I care about things that keep working when conditions aren't ideal: offline-first apps, small payloads, explicit failure modes.

Most of what I build starts with a problem I actually had.

What's here

  • olx-aluguel-mcp: when I moved to Brazil I needed an apartment and kept running into rental scams. This MCP server lets Claude search OLX, break down the real monthly cost and score each listing's scam risk.
  • workana-mcp: scores freelance projects by stack fit, competition, budget and client history, and recovers the results Workana hides from logged-out users.
  • sales_manager: offline-first inventory and sales app for a small grocery store in Cuba, where every product has a cash price and a bank-transfer price.
  • docqa: RAG over PDFs with page-level citations. The README documents every trade-off, including switching LLM providers three times in one day.
  • ory-based-idp: self-hosted OAuth2/OIDC identity provider on Ory Kratos + Hydra, built with a team of four.
  • Saas-Multitenant: real-time boards, kanban and calendar (NestJS, Next.js, Socket.IO), growing step by step into a multi-tenant SaaS.

Stack: TypeScript · React · React Native/Expo · Next.js · Node.js · NestJS · Fastify · PostgreSQL · MongoDB · Redis · Docker · Python

Languages: Spanish (native) · Portuguese · English

📫 LinkedIn

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  1. Saas-Multitenant Saas-Multitenant Public

    Real-time task management (boards, kanban, calendar) with NestJS, Next.js and Socket.IO, built as the base for a multi-tenant SaaS.

    TypeScript 1

  2. docqa docqa Public

    RAG over your PDFs: upload, ask in plain language, get answers cited by document and page. Fastify API, BullMQ ingestion worker, MongoDB Atlas Vector Search, Redis cache and rate limiting.

    TypeScript

  3. olx-aluguel-mcp olx-aluguel-mcp Public

    MCP server that searches OLX Brazil rentals, breaks down the real monthly cost and scores each listing for rental-scam risk (0-100). Built while apartment hunting as an immigrant in Brazil.

    Python

  4. ory-based-idp ory-based-idp Public

    Self-hosted OAuth2/OIDC identity provider on Ory Kratos + Hydra, with a NestJS users/roles API and a Next.js admin panel. 4-person team project.

    TypeScript

  5. sales_manager sales_manager Public

    Offline-first inventory and sales app (Expo + SQLite) built for a real small grocery store: daily sales split by cash vs. bank transfer and real-time profit.

    TypeScript

  6. workana-mcp workana-mcp Public

    Read-only MCP server that finds and scores Workana freelance projects (0-100) by stack fit, competition, budget and client history, and recovers the results Workana hides from logged-out users.

    Python