Follow-up to https://gitlab.com/meltano/meltano/-/issues/2090 As I wrote in https://gitlab.com/meltano/meltano/-/merge_requests/1697#note_362387666: > I'd actually prefer to move away from `ui.cfg` sooner rather than later (while continuing to support it for legacy reasons), since it doesn't have any benefits over setting these variables through `.env` or the actual environment, which is more consistent with how the rest of Meltano is configured. `meltano ui setup` could write to `.env` instead of `ui.cfg`, or just print the appropriate `export X=Y` statements with some instructions