@hackage / typed-spreadsheet

This library provides a typed and composable API for building spreadsheets. This differs from traditional spreadsheets in a few important ways:

• you specify the relationship between inputs and outputs at compile time, not runtime, so that the relationship can be type-checked

• inputs of different types have different controls; for example, a Bool input creates a checkbox and a Double input creates a spin button

• you can only output a single value; you simulate multiple outputs by emitting a tuple of values

See the Typed.Spreadsheet module for full examples with code and pictures