Here's your Forbes Daily Briefing for Saturday, October 18th.

Today on Forbes, meet the 30 Under 30 Software Wunderkind, taking on Airbnb.

John Andrew Entwistle's father only learned that his 13-year-old son was running a six-figure

video game server business when an unexpected email caught his

eye. Entwistle had c-seed his dad, a New York-based attorney, on an email thread with several

lawyers working for Microsoft. They were alleging that the teenaged entrepreneur had attempted to

trademark a name already claimed by the tech giant, and were threatening a lawsuit.

Entwistle recalls 14 years later, quote,

that's when my dad was like, hey son, what exactly are you doing online?

After dealing with the trademark problem, his father asked if he had paid the company's taxes.

Young John confessed that he hadn't.

Entwistle says, quote, I remember going to the accountant in the city with him, and I think I

spent more in accounting fees than revenue I had, but it was all great lessons for a young founder.

After launching a series of moderately successful tech companies, all based around Minecraft,

his favorite game at the time, Entwistle decided to get serious about his future.

At age 18, he took a pass on college to found Coder in 2015, a cloud development startup that

raised $85 million in capital from Peter Thiel's Founders Fund

and California-based notable capital.

Coder made collaboration between engineers easier and more productive by moving workflow

from a local computer to the cloud, effectively creating Google Docs for coders.

The company landed Entwistle and his co-founders

on Forbes's 30 under 30 list in 2020. But just a year later, Entwistle made an unexpected turn.

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