Dear Employer,
I think you just found the right worker for your project!
I use GNU/Linux as my daily driver and I consider myself a power user as well. I have previous experience in maintaining and setting up GNU/Linux servers so I am sure I will be able to satisfy your needs.
I can note my commands too, no problem. I also work cheap so I might be the best candidate, this could be done in no more than 2-3 hours at most.
I hope you have a great day!
Kind regards,
Molnár Antal Albert.