During my career I faced a number of typical questions from different people. So, anticipating such questions, here is answers:

Q: You’re Russian. Why you writing in English?
A: Space exploration is international activity. Many companies in many countries do space operations. As an independent expert I am opened to interaction with any companies from any country. English is a language of international communication. Most of advanced space engineers and other specialists know it. That’s why I am writing in English.

Q: Why you don’t publish your software on GitHub?

A: After number of issues with GitHub (including blocking by political reasons, data leaks, and unsanctioned AI activity) I don’t trust public repo services. Best backup is that one you have. What’s good if you will loose access to your backup because error in AI script or because of bad mood of a rich old man with weird haircut? So I publish there only repositories I especially choose to share with everyone.

Q: You have no aerospace degree / no degree at all? Who are you to name yourself an “expert”?
A: First: who are you to prohibit me to do this? Second: we all know the price of “degree” in modern time, and how low is a quality of university education nowadays. Third: my work speaks itself. I can solve practical astrodynamic problems. Can you?

Q: Why you not working for government-affiliated space companies of country X (Russia, Ukraine, US, EU, China, %you_name_it%)?
A: There is no government-affiliated space companies in modern world, except maybe some in China and North Korea. There is contracts to develop space solutions for government issues. Commercial companies operate under these contracts. I am open to any job, but I don’t like bad terms of contracts and low salary.