Contact

The fastest way to reach Ruan Gustavo is an email to dev.ruangustavo@gmail.com, or a direct message on X or LinkedIn. He reads all three, usually within a day or two. There is no contact form on this site and no newsletter.

Channels

Pick the channel that matches what you want to talk about.

• dev.ruangustavo@gmail.com · anything longer than a message, work, consulting, and speaking requests
• X · quick questions, replies to posts, informal conversation
• LinkedIn · work, hiring, consulting, and speaking requests
• GitHub · bugs, feature requests, and questions about code he has published

Good reasons to get in touch

Questions about building and evaluating LLM agents in production, especially conversational agents on WhatsApp or voice. Feedback on an open-source pull request or issue he opened. Invitations to talk about AI products, debt negotiation automation, or TypeScript.

Location and language

Ruan is based in Brazil and works in the America/Sao_Paulo time zone. He is fluent in Portuguese and English, so write in whichever you prefer.