How did Bubble bootstrap to $100k/month?

Indie Hackers, 2017: "Everyone wants to code, but not everyone knows how. Read how two co-founders built and grew a solution to this problem which now generates $100,000/mo. 5 years later, Bubble has more than 100,000 users, a team of six people (and hiring!) and is still entirely bootstrapped. We currently earn about $100k a month.

Indie Hackers, 2017: "Everyone wants to code, but not everyone knows how. Read how two co-founders built and grew a solution to this problem which now generates $100,000/mo. 5 years later, Bubble has more than 100,000 users, a team of six people (and hiring!) and is still entirely bootstrapped. We currently earn about $100k a month.