# contact

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Contact Gustavo Madeira Santana by [email](mailto:fromweb1@gumadeiras.com) about his research, professional work, this site, or a correction. For a public software project, use the issue tracker in its repository on Gustavo’s [`gumadeiras` GitHub profile](https://github.com/gumadeiras). You can also find him on [X](https://x.com/gumadeiras) and [LinkedIn](https://www.linkedin.com/in/gumadeiras/).

This site has no contact form, account, newsletter, automated support, or guaranteed response time. Do not send passwords, medical or financial records, unpublished confidential data, or other sensitive information by ordinary email. External links open the named service and use that service’s policies. See [privacy](/privacy/) for this site’s data practices.