https://johnkazart.gumroad.com/l/csdf

ConjureSDF is a Blender modeling addon. Allowing you to create flawless smooth shapes with non-destructive boolean primitives.  Purchasing a copy of ConjureSDF Public Alpha entitles you to updates, technical support and access to a private Discord server. While the Alpha will receive some big updates. Beta, 1.0 and other major versions will be separate purchases (owners of Alpha will be able to upgrade to these at significant discounts)