Now as I said that, it looks like I was slightly wrong. The pkgs.bash shebang does exist... if you're already in NixOS, making wsl -d NixOS --system --user root -- /mnt/wslg/distro/bin/nixos-wsl-recovery fail.

$  tail -n1 /bin/nixos-wsl-recovery
exec /mnt/wslg/distro//nix/store/00y13y9l90yxjaqyddkjfms0r80r1i4j-nixos-enter/bin/nixos-enter --root /mnt/wslg/distro "$@"

$  head -n1 /nix/store/00y13y9l90yxjaqyddkjfms0r80r1i4j-nixos-enter/bin/nixos-enter
#! /nix/store/xy4jjgw87sbgwylm5kn047d9gkbhsr9x-bash-5.2p37/bin/bash

Anyone run into issues rebuilding recently? I'm trying to rebuild my system, and getting this when it tries to build nixos-wsl-utils

$  PAGER= nix log /nix/store/g3v13v1jj1vjys4zs2jcc5cr6b4g2xll-nixos-wsl-utils-1.0.0.drv
warning: The interpretation of store paths arguments ending in `.drv` recently changed. If this command is now failing try again with '/nix/store/g3v13v1jj1vjys4zs2jcc5cr6b4g2xll-nixos-wsl-utils-1.0.0.drv^*'
Running phase: unpackPhase
@nix { "action": "setPhase", "phase": "unpackPhase" }
unpacking source archive /nix/store/n89ziclxgb8iiypsah9j72vvh5bjv6dg-utils
source root is utils
Executing cargoSetupPostUnpackHook
Finished cargoSetupPostUnpackHook
Running phase: patchPhase
@nix { "action": "setPhase", "phase": "patchPhase" }
Executing cargoSetupPostPatchHook
Validating consistency between /build/utils/Cargo.lock and /build/cargo-vendor-dir/Cargo.lock
Finished cargoSetupPostPatchHook
Running phase: updateAutotoolsGnuConfigScriptsPhase
@nix { "action": "setPhase", "phase": "updateAutotoolsGnuConfigScriptsPhase" }
Running phase: configurePhase
@nix { "action": "setPhase", "phase": "configurePhase" }
Running phase: buildPhase
@nix { "action": "setPhase", "phase": "buildPhase" }
Executing cargoBuildHook
cargoBuildHook flags: -j 8 --target x86_64-unknown-linux-gnu --offline --profile release
Executing cargoInstallPostBuildHook
cp: missing destination file operand after 'target/x86_64-unknown-linux-gnu/release-tmp/'
Try 'cp --help' for more information.