Just a collection of homebrew formulae that aren't already available in homebrew/homebrew-core. Some of these are packages that can't be distributed due to licensing issues, some of them need a bit of work before being merged into homebrew-core.
I don't think homebrew formulae are copyrightable, but just in case, the formulae here are licensed under the Unlicense. This license only applies to the formulae in this repository, it does not apply to any of the code fetched by the formulae, or any of the resulting binaries.