Harry Paterson will return to the Edinburgh side this coming Friday against Zebre in the URC, less than a week after making his Scotland debut.
The 22-year-old started for his country in only his ninth professional game, after Kyle Steyn dropped out of the starting XV the morning of the France game.
"It was a proud day for the club," Everitt grinned. "We're all very proud of what he achieved and the way he performed. It's always good to see a young guy come through the academy system and into the senior team.
"He's struggled with injury over the last 12 months, hasn't played a hell of a lot of rugby - but you couldn't tell that from his performance on Saturday. He's always trained well, he's accurate in what he does, and in the games he's played for Edinburgh he's put his hand up for international selection."
Gregor Townsend called it 'one of the best international debuts' he'd ever seen - a sentiment Everitt agreed with.
"If you look at his performance against France, it was pretty much faultless. In his first touch, he took his opposite number on and beat him, and got the offload away. He's full of confidence and he'll just get better the more he plays at this level.
"Harry is a thinker," Everitt continued. "It was fortunate that he didn't have too much time to think from Saturday morning until kick-off. Fortunate too, that it was a 2.15pm kick off. Sometimes that's best, so you don't overthink things."
The South African head coach confirmed Paterson will be straight back into the action with Edinburgh, as will a few other Scotland players.
"We've got WP Nel and Javan Sebastian back, who are returning from injury. Jamie Ritchie will play for us this weekend. Ali Price and Ben Healy, too.
"Darcy Graham is in his return to play protocols, and is unavailable for selection this week."