Develop a Revit Killer, that is way cheaper, and speaks openly with Rhino/SketchUp.
Could make it opensource, then find a service to make it money minting.
Native BIM Authoring Service for Rhino
A fun software that takes up Grasshopper scripts and converts them into pseudocode
A template of Grasshopper Scripts for that contains few Python Scripts that subscribes the user to the prajwalbkumar.com website. Refer to Ladybug Energy Search EPW Tool. Also related to Scripted Doodles.
Linking Topologicpy to Ladybug, Honeybee, etc with a great Revit Integration for Larger Organizations.
Model Health Checker Correction Manager - Revit Model Cleanup
Ghost on Obsidian - Have Obsidian with a Ghost Publishing Platform
An Open Source Tool Like pyRevit that let’s you run Artificial Intelligence Model inside Revit
[[A Powerful Assembly Code - UNICLASS - Basic Estimation and Takeoff - TOOL]