dhall 1.19.1-1build2 (amd64 binary) in ubuntu focal

 Dhall is an explicitly-typed configuration language that is not Turing
 complete. Despite being Turing-incomplete, Dhall is a real programming
 language with a type-checker and evaluator.
 .
 Use this library to parse, type-check, evaluate, and pretty-print the Dhall
 configuration language.
 .
 This package contains an executable which type-checks a Dhall file
 and reduces the file to a fully evaluated normal form.