Install Mathematica in NixOS

README.md

First you find a copy of Mathematica_13.2.1_LINUX.sh or similar and find its sha256sum. Then you go to nixpkgs and copy all Mathematica files to a local directory. You need to modify default.nix and wrap its contents into

let pkgs = import <nixpkgs> {};
in pkgs.callPackage (
  # whatever is in default.nix
) {}

Next modify sha256 checksum and filename in version.nix to match what you have above. Run nix hash file Mathematica_13.2.1_BNDL_LINUX.sh. Finally, running nix-build will install Mathematica to Nix store.

I'm getting an error running this. I'm a pretty new Nix user and I'm totally stumped! Any help is much appreciated!
Output of nix-build

NOTE: Unable to determine the package manager used by the
system--skipping the optional install of WolframScript system
integration. Installer packages in the RPM and DEB formats have been left in
"/nix/store/vp27jh8g9krp8pfqmbf09qjv88q384ig-mathematica-13.3.1/libexec/Mathematica/SystemFiles/Installation".
Consult your system documentation on how such packages might be installed.

WARNING: No Avahi Daemon was detected so some Kernel Discovery features will
not be available. You can install Avahi Daemon using your distribution's
package management system.

Go to http://avahi.org for more information.

error: builder for '/nix/store/d095ldrs9k6hj38ml9d57xx8lw601hl2-mathematica-13.3.1.drv' failed with exit code 127;

Hello! I am no longer running Nix (I'm back on Arch) so it will take me some time to test this. Unfortunately, it seems like every build of Mathematica is it's own beast so I will have to test with the latest one, 13.3.1.

Do you know if the error code you're getting, 127, has some message or description? I forgot what that code means :)

From the Nix reference 127 doesn't seem to be in use!
Run again with max verbosity gives this, which doesn't shed much light for me.

WARNING: No Avahi Daemon was detected so some Kernel Discovery features will
not be available. You can install Avahi Daemon using your distribution's
package management system.
waiting for children
building of '/nix/store/d095ldrs9k6hj38ml9d57xx8lw601hl2-mathematica-13.3.1.drv!out' from .drv file: read 1 bytes

waiting for children
building of '/nix/store/d095ldrs9k6hj38ml9d57xx8lw601hl2-mathematica-13.3.1.drv!out' from .drv file: read 45 bytes
Go to http://avahi.org for more information.
waiting for children
building of '/nix/store/d095ldrs9k6hj38ml9d57xx8lw601hl2-mathematica-13.3.1.drv!out' from .drv file: read 1 bytes

waiting for children
building of '/nix/store/d095ldrs9k6hj38ml9d57xx8lw601hl2-mathematica-13.3.1.drv!out' from .drv file: got EOF
building of '/nix/store/d095ldrs9k6hj38ml9d57xx8lw601hl2-mathematica-13.3.1.drv!out' from .drv file: woken up
building of '/nix/store/d095ldrs9k6hj38ml9d57xx8lw601hl2-mathematica-13.3.1.drv!out' from .drv file: build done
killing process 6195
builder process for '/nix/store/d095ldrs9k6hj38ml9d57xx8lw601hl2-mathematica-13.3.1.drv' finished
killing all processes running under uid '30001'
lock released on '/nix/store/vp27jh8g9krp8pfqmbf09qjv88q384ig-mathematica-13.3.1.lock'
building of '/nix/store/d095ldrs9k6hj38ml9d57xx8lw601hl2-mathematica-13.3.1.drv!out' from .drv file: done
building of '/nix/store/d095ldrs9k6hj38ml9d57xx8lw601hl2-mathematica-13.3.1.drv!out' from .drv file: goal destroyed
error: builder for '/nix/store/d095ldrs9k6hj38ml9d57xx8lw601hl2-mathematica-13.3.1.drv' failed with exit code 127

Wow you're right haha. I'm going to spin up a qemu instance of NixOS. I need to see for myself. I'll try installing 13.3.1. I'll let you know about my results :)