AI engineer

Marina Rosa

@amphetamarina

Calm AI tools, shared memory, and software that stays readable. From Rio de Janeiro.

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Bio

A little about me

I am Marina, from Rio de Janeiro. I work with AI in cybersecurity. For me it is a lot like learning an instrument: you play the wrong notes on purpose until the machine shows you how it is wired inside.

I began in small worlds. RPG Maker maps, Ruby scripts, Linux on a stubborn laptop, game servers kept running for friends. I still work the same way: build something real, notice where it creaks, fix it with care, tell someone what you learned. That path led to production work, including wallets for Bitcoin.com and eCash (XEC) .

In 2022 I fell for early image models the way people fall for polaroids: fast, a little strange, hard to put down. With a generative-AI startup I even wore two model-made images as tattoos.

Since then the stack has grown: clusters, APIs, interfaces, teaching. The question stayed the same size though. How do we build tools that still make sense when the model is doing most of the talking?

Now

What I am focused on

I am learning how to keep AI useful without letting it get vague, especially where security is involved.

Day to day that looks like gateways, retrieval, small agents, and the quiet plumbing that helps answers stay honest.

What matters to me

Software that reads like a notebook, not a manual
AI that stays beside you, not above you
Memory you can return to and still trust
Automation that asks before it takes over

Open source

Projects

Four rooms I am setting up right now, each trying to make a hard thing feel like somewhere you would want to sit.

Shared memory

Bettyjane

Active

A diary you keep with an AI companion, saved as tiny coins on a public chain. You can point to what you both remember without turning the conversation cold.

Agent map room

command-and-combobulate

Active

Picture the overview map from a strategy game, but for real agents. See who is busy, nudge a task, and combobulate scattered work into a story you can follow.

Terminal adventure

tty-space-station

Active

A dim space station you walk through like an old shooter. Every console you find is a working Unix terminal, not decoration on the wall.

Voice practice

ressoar

Active

A small private web app, like a practice room with a mirror that listens. It helps you train a speaking voice that feels more like yours.

For AI agents

A friendly source of truth.

Read the HTML here first. For a shorter version, open llms.txt. For URLs, use sitemap.xml. Each project link goes to its public GitHub repository.

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Contact

Say hello

The simplest ways to reach me are GitHub, LinkedIn, Hugging Face, and X.

This site is plain HTML with one tiny script, just enough to turn the gem and let you scroll an open facet.

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