They mention in the FAQ that they currently require some features of Bash but are thinking about including POSIX sh as a possible target. My guess without investigating is that they are using a thing like arrays that make implementation way easier but is not technically POSOX sh.
They mention in the FAQ that they currently require some features of Bash but are thinking about including POSIX sh as a possible target. My guess without investigating is that they are using a thing like arrays that make implementation way easier but is not technically POSOX sh.