What are the key tips for starting an IT company?

Thomas Preston-Werner, co-founder of GitHub, emphasizes three essential tips for starting an IT company. First, start something - anything - because you'll never succeed without taking that initial step. He advocates trying multiple ideas, citing that GitHub was his '17,000th idea.' Second, be careful about building the right team. Most companies fail not because of bad products but because teams fall apart. Having co-founders rather than employees creates equal relationships critical for long-term success. Third, build something people actually want. No amount of marketing can trick people into buying something they don't need.