Hello, I am new to NixOS and I am trying to shrink partition because I want another one to test another linux distro, Arch this time and it is not possible because read-only filesystem. Is there any solution for that? Thank you all for your time.
Usually I do such things offline - boot a live usb with parted tools.
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There is possibility to do it in installation proces but I think it will brake the system. I will try it at the end of the week and write here. Thanks.