What is "ushell", a CLI tool that ships with Unreal Engine? How to use it on Linux?

[dzemzmcdonalda]

Few notes:

• Per README: Ensuring a suitable version of Python is available (and possibly a toolchain to build Pips) is left to the user to take care of. - which might be a problem on Linux distros that forbid pip. For example on Arch-based distros, one must use pacman or pipx instead of pip.
• I can confirm, this works just fine on Win11 VM:
  
  
• However, ushell does NOT fully ship with the binaries from Epic Games Launcher, there are only few .tps files that won’t make it work.