Question

Given command foo, which outputs both stdout and stderr, how can I pipe both of stdout and stderr from foo into bar through a pipe?

Ref these (non-exhaustive list of) alternatives which achieve this in bash:

foo |& bar
foo 2>&1 | bar

Additional context and details

The only way for me to automate checking of my flake.nix checks (in a nice graphical output) in Nushell when using nom now is this arcane invocation:

bash -c 'nix flake check --log-format internal-json -vv |& nom --json'

Feels weird that I cannot do the equivalent of "combine outputs and redirect them through pipe" in Nushell =S