He lifts their hands a little and answers, "I think my manna's covered."

And probably will be for the foreseeable future, for that matter. Their work unites them, but he has to believe it's not the only thing keeping their friendship alive; even with a seriously diminished need to investigate, they're going to be in each other's hair more often than not. (He hopes so, anyway. The idea of living here on Noctium and not seeing Scully leaves him feeling strangely lost. Her absence was manageable right up until he found out she was here.)

"Really? I might have to ask to be transferred over to Sapphire." Being able to swim laps with his head down the entire time sounds significantly more useful than starting a greenhouse.