Not from what we’ve read.

A1 universe it was found on Meenah’s moon. A2 universe Sollux adapted it from the technology Aradia found in the Frog Temple. B1 universe it was Skaianet, owned by Grandpa Harley. B2 it was Crockercorp owned the Condesce. 

He has flirt larped with her but hasn’t said if he’s romantically interested.

Well if she was the slave that Mindfang stole from Dualscar then Dualscar killed her. 

He was disappointed that Caliborn didn’t want any shippy art of him and Jake.

Eridan is my second favorite troll.

She was going to prototype it but didn’t do it.

He’s not Dad Egbert like most of the fandom for some reason thinks.

No, Dad Crocker is alive. 

Unknown.