0: Action `create_apfs_volume` errored
   1: Failed to execute command with status 1 `"/usr/sbin/diskutil" "apfs" "deleteVolume" "Nix Store"`, stdout: Started APFS operation
      Deleting APFS Volume from its APFS Container
      Unmounting disk3s7
      The volume "Nix Store" on disk3s7 couldn't be unmounted because it is in use by process 0 (kernel)

      stderr: Error: -69888: Couldn't unmount disk

   1: 

restarted, reran, new error

INFO Step: Provision Nix
ERROR 
   0: Install failure
   1: Error executing action
   2: Action `provision_nix` errored
   3: Action `fetch_and_unpack_nix` errored
   4: Unarchiving error
   5: trying to unpack outside of destination path: /nix/temp-install-dir
   6: Invalid argument

Location:
   src/cli/subcommand/install.rs:300

Revert worked successfully this time.

i think the nix shell shebangs are broken?

#!/usr/bin/env nix
#! nix shell nixpkgs#bash nixpkgs#hello nixpkgs#cowsay --command bash

hello | cowsay

outputs:

error: 'wat.sh' is not a recognised command
Try 'nix --help' for more information.

on:

✦ ❯ : nix --version
nix (Lix, like Nix) 2.93.3
System type: aarch64-darwin
Additional system types: x86_64-darwin

i think the nix shell shebangs are broken?

#!/usr/bin/env nix
#! nix shell nixpkgs#bash nixpkgs#hello nixpkgs#cowsay --command bash
hello | cowsay

outputs:

error: 'wat.sh' is not a recognised command
Try 'nix --help' for more information.

on:

✦ ❯ : nix --version
nix (Lix, like Nix) 2.93.3
System type: aarch64-darwin
Additional system types: x86_64-darwin

i think the nix shell shebangs are broken?

#!/usr/bin/env nix
#! nix shell nixpkgs#bash nixpkgs#hello nixpkgs#cowsay --command bash
hello | cowsay

outputs:

error: 'wat.sh' is not a recognised command
Try 'nix --help' for more information.

on:

❯ : nix --version
nix (Lix, like Nix) 2.93.3
System type: aarch64-darwin
Additional system types: x86_64-darwin

for simple case like this I think you can use env -S arg:

nix-on-droid@localhost ~> cat /tmp/test.sh
#!/usr/bin/env -S nix shell nixpkgs#hello nixpkgs#cowsay -c bash                        
hello | cowsay
nix-on-droid@localhost ~> /tmp/test.sh
 _______________                                                                        < Hello, world! >                                                                        ---------------                                                                                \   ^__^                                                                                 \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||