[ANN] fresnel initial release

[Rob Rix]

Hello!

I’m pleased to announce the initial release of fresnel, an optics library optimizing for few dependencies, familiar tools, and decent error messages, without sacrificing functionality. fresnel is available at:

- https://hackage.haskell.org/package/fresnel-0.0.0.0
- https://github.com/fresnel/fresnel/releases/tag/0.0.0.0

Feature requests, issues, and other feedback are welcome at https://github.com/fresnel/fresnel/issues

Overview:

- Most of the optic types from lens and optics. No Indexed*, however.
- Compose optics using . much like in lens.
- Decent error messages, much like in optics.
- Few dependencies. I’m considering pulling At/Ixed into a new package to reduce the dependency list that much more, out of a desire to “pay for what you use.” I’m considering divesting the package of the profunctors dependency for much the same reason.
- Named for a real-world optic which has saved countless lives by its use in lighthouses around the world.

Best regards,
Rob