He didn't get any Scotus appointment but he packed the sh**t out of the lower courts, the dems basically got a bipartisan bill through doubling the size of the courts and with there large senate they were able to get judges through efficiently. He still holds the record for the most number of judicial appointments in a single presidential term
https://en.wikipedia.org/wiki/List_of_federal_judges_appointed_by_Jimmy_Carter
TIL
He made a lot of incredibly progressive judicial choices including Reinhardt who famously said the supreme court "They can't catch 'em all" after having several of his decision overruled by the supreme and ruled assisted-suicide was a conditional right, (a sexual harrsment scandal that came out after his death in 2018 does damage much of his legacy) and RGB to the DC circut.
https://en.wikipedia.org/wiki/Stephen_Reinhardt
You learn something new every day.