He got into YC solo with 70 users and an open-source Roam. Within four years he had sold a beet-meal business to Bryan Johnson.

Athens Research got into YC W21 as a one-person, open-source Roam alternative: 1,800 GitHub stars, 70 users, $800 in a good month. It raised about $2M, hit 6,300 stars, and was shut down in 2023. A later company of his was a longevity meal service Bryan Johnson bought. The form is below.