It's worth your while to buy another domain. You could keep the .tk running.
Some sites shadowban .tk, Reddit probably still does. Search engines probably downrank it. That's because it's free and has been used for a lot of spammy stuff.
This makes it harder for people to share and harder for people to find. That might just put a damper on your hobby, but it might also mean you won't get random emails about jobs you might want. (If you're interested in that.)
I only mention it because I learned that the hard way many years ago.
Some sites shadowban .tk, Reddit probably still does. Search engines probably downrank it. That's because it's free and has been used for a lot of spammy stuff.
This makes it harder for people to share and harder for people to find. That might just put a damper on your hobby, but it might also mean you won't get random emails about jobs you might want. (If you're interested in that.)
I only mention it because I learned that the hard way many years ago.