Extensible type-safe unions

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LTS Haskell 19.28:0.1.2@rev:7
Stackage Nightly 2023-05-28:0.1.2@rev:8
Latest on Hackage:0.1.2@rev:8

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Extensible type-safe unions for Haskell with prisms using modern GHC features. Dual to vinyl records. Unions are also known as corecords or polymorphic variants. Neither requires a Typeable constraint nor uses unsafe coercions at the cost of linear time access (negligible in practice).