My super-quick checklist for new shells consist of only one point: does it decently support background tasks? It seems that none of recently emerged shells had

My super-quick checklist for new shells consist of only one point: does it decently support background tasks? It seems that none of recently emerged shells had that point in their design: - elvish: no (https://github.com/elves/elvish/issues/193 https://github.com/elves/elvish/issues/193). - xonsh: no (https://github.com/xonsh/xonsh/issues/1959 https://github.com/xonsh/xonsh/issues/1959). - fish: no (https://github.com/fish-shell/fish-shell/issues/238 https://github.com/fish-shell/fish-shell/issues/238).