---
title: Contact Information
sidebar:
  label: Contact
  order: 5
---

Contact on this page is intended for technical collaboration and feedback. This
space is dedicated to fostering the well-being and advancement of humanity. If
you have any technical questions or suggestions on how to enhance this software,
your insights are very much welcome.

For email correspondence, I strongly prefer plain text over HTML format.

## Personal Details

- **Preferred Name:** Eric
- **Legal Name:** Yu Hu
- **Email:** [eric@bktus.com](mailto:eric@bktus.com) (server in Germany)
- **Headquarters:** Germany

> **Note on Names**: I’ve used the name Eric since childhood, and prefer it in
> nearly all non-Chinese contexts, especially online. My legal name, Yu Hu, is
> only truly accurate in Chinese characters and is rarely needed outside of
> legal or formal situations. It’s provided here mainly for code signing
> certificate verification. In formal settings, please use Mr. Hu.

## About My Domain

The domain [`bktus.com`](https://bktus.com/) (“Bakantu union us”) is just a
personal domain I registered as a teenager. “Bakantu” is simply a made-up
word—no hidden meaning! I just wanted a name that blended technology and
community, reflecting values like innovation, connectivity, and collaboration.
:)

## Language Proficiency

I can use the following languages and welcome communication in any of them:

- English
- Chinese
- German

## Secure Communication (GPG Public Key)

For secure and encrypted communication, below is my long-term PGP public key.
Please ensure any encrypted messages are sent in plain text format and avoid
rich text formats like HTML.

```
-----BEGIN PGP PUBLIC KEY BLOCK-----
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=hYH/
-----END PGP PUBLIC KEY BLOCK-----
```

This setup is designed to maintain privacy and security in our communications.