let xdg = $env
    | transpose name value
    | each {|e| if $e.name =~ 'XDG_' {{
        name: ($e.name | str replace 'XDG_' '' | str downcase),
        value: $e.value
    }} else { null }}
    | reduce --fold {} {|e, memo| {
        ...$memo,
        $e.name: $e.value
    }}