When I was 20 I was working, as a single developer, for a startup connecting people who would like to get consultancy in different areas (eg. photography, IT, s

When I was 20 I was working, as a single developer, for a startup connecting people who would like to get consultancy in different areas (eg. photography, IT, school subjects, law, etc.) with paid consultants ("experts"). They were both calling the service, which joined their calls and billed appropriately. I'm not very proud of the code I wrote then (PHP without version control + Asterisk scripts), but it worked good enough. Anyway, the business model didn't work out, so the founder pivoted into something that should work: phone sex and telephone fortune telling. It was a bit too much for me :)