Can anyone help with using the tool pinback.it?

I don't know if this is the best place to ask (vs. a sub about Javascript since that's what the tool is made with) but I figured I'd start here.

I want to move my pinned recipes (all together about 700) from Pinterest to raindrop.io and I've been trying to find a tool to do that for most of today. The closest I got was finding pinback.it and it looks like it might do what I want. But I realised I was having a similar issue as the user named Brett Donald here: https://webapps.stackexchange.com/questions/170846/how-to-export-all-my-pins-and-boards-from-pinterest

Pinback.it seems to natively only work on pinterest.com, not any country-specific variants (like co.au, or a subdomain like country.pinterest.com)

The former is something that Brett in that StackExchange thread had to deal with, and he was able to modify the Javascript to make pinback.it work with the co.au domain. But it doesn't work with the subdomains, which is what is stopping me.

I'm in Finland so my Pinterest url starts with fi.pinterest.com, and pinback.it does not work. Is there anyone here who could possibly help me get this working for me? I can't ask Brett on StackExchange because I'm not a developer of any kind and you need reputation points to even be able to comment on StackExchange.

I've tried other tools too but almost all of them just download images/media, which is not what I want. I want the URLs that my pins link to, because all the pins are recipes and I need to access the original websites with the full recipe.