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[directus/directus](https://github.com/directus/directus) offers instant APIs, authentication and an admin layer over an existing database. [jrouwe/JoltPhysics](https://github.com/jrouwe/JoltPhysics) is a multithreaded rigid-body and collision library used by shipped games.

The day also includes [apache/superset](https://github.com/apache/superset), a data-exploration platform, and [electron/electron](https://github.com/electron/electron), the JavaScript desktop runtime. These are tools teams adopt for years, not experiments to sample once.

Luna now costs $0.20 per million input tokens and $1.20 per million output tokens. OpenAI says the cut makes high-volume tasks such as document analysis, classification, testing and routine implementation practical at a much wider scale.

The useful split is operational: use Sol for ambiguity and planning, then hand well-specified implementation and evaluation to Luna. Fast mode speeds up Sol up to 2.5×, but costs twice the Standard rate.