Groundhog

Groundhog's primary purpose is to teach people how Cursor and all these other coding agents work under the hood. If you understand how these coding assistants work from first principles, then you can drive these tools harder (or perhaps make your own!).

Groundhog is active in the open source space.

Within the open source space, the company focuses on its core offering rather than a broad product line.

Website: ghuntley.com/specs