Jeff Walpole discusses challenges with sustaining an open source business built on Drupal and strategies to overcome them. Growing a Drupal services business is relatively easy at small scales through hourly work, but scaling and sustaining profitability is difficult due to competition and lack of competitive advantages. Products and distributions can help by generating passive revenue streams, but require substantial, sustained investment. Alternatively, firms can focus on niche expertise, packaging services, and using Drupal's popularity and tools to reduce costs and drive revenue without developing products. The key is leveraging Drupal as a business platform rather than just a coding platform.