Basically everyone in the israeli tech community know about this guy because he pretty much shared everything about his journey from the moment he started. One of the most genuine and no-bs entrepreneurs i've ever seen (and israel has it's fair share of grifters).
Yes, he really did basically built everything by himself. Yes, he did manage to build a huge client list worth a lot of money, in just 6 months. Yes, he was previously a founder (without an exit). Yes, there were a few (very recently hired) employees.
This is one of the rarest solo-founder exit stories in the world. dumb-founded by negativity.