In this case there's probably room for a handful of small players at least, and certainly many people will have different opinions about what the "right" way to build a Django SaaS should be, so it makes sense there would be multiple products in the space.

At first glance Forge looks like it's trying to be more upmarket and more opinionated than Pegasus, while Pegasus is more price-accessible and flexible. Certainly there are pros and cons to both positions.

Good luck! I'm sure we'll see each other on the battlefield. :)