Custom/Homebrew N64 cartridges

What do you guys think about this?
https://www.reddit.com/r/N64Homebrew/comments/57uhbs/making_homebrew_cartridges/

"....I thought I'd let you know that you definitely can order custom cartridges from some producers in china. If you give them a rom, they can make cartridges out of it. I haven't tried with a homebrew rom, but I did get a cartridge with the Zelda master quest rom on it and it works just like the real deal. Here's a link to their page in case you're interested:"

https://m.alibaba.com/product/60577...s.html?spm=a2706.7835515.1998800312.24.WQ3CVU

 

A bit tardy to the party. This news broke last year. Sanni's cart reader can even reprogram these carts.

 

Thanks for the info:
https://github.com/sanni/cartreader/wiki/Reflashing-the-N64-Repro

 

I love sanni's cart reader, I just made my own copy of f zero climax with 64dd support.

 

I'll take a Sanni's card reader for make my Mario Kart 64 with new characters.