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santiago cajal
Blog

Blog.

Notes from building fintech, crypto and telemetry platforms: money in databases, ledgers, LoRaWAN, multi-tenancy and AI inside the engineering loop.

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  1. How to build a remote MCP server in Laravel

    A Laravel MCP server that Claude and ChatGPT reach over OAuth, act as the signed-in user, dry-run bulk writes, log every change and can be revoked at once.

    9 min read

  2. How I built a SaaS alone in four weeks

    The solo founder tech stack behind Contamos: Laravel, managed auth, billing and hosting, plan limits in one place, and tests as the contract.

    7 min read