What language/frameworks did Courtland Allen teach his brother and friends?
Was it similar to the tech stack at indiehackers? Firebase and Ember.js? I'm curious after listening to the podcast with Lynne Key. She said she was able to charge $100 an hour consulting after learning from @csallen
Basic web technologies. HTML, CSS, vanilla JS fundamentals, Node, working with APIs, etc. Charging $100/hour is less to do with what languages you know and more to do with your ability to find people and companies who need help.