Reached out to an old employer of mine because I used to have a solid friendship with one of the colleagues there and the founder still has his contact information (and handed mine over to him, providing some context as to why) and the guy has always been impossible to find online. Unfortunately we had a few years of permament conflicts because our visions of the next product iteration diverged and I was a really arrogant know-it-all prick back then.

Let’s see if he ever gets back to me. I’d really appreciate it but we really burnt a lot of bridges back then so I’d understand if he wants to keep his distance.