let H = https://gitlab.horizon-haskell.net/dhall/horizon-spec/-/raw/0.10.0/horizon-spec/package.dhall let packages = { Stream = H.callHackage "Stream" "0.4.7.2" , arrows = H.callHackage "arrows" "0.4.4.2" , blaze-svg = H.callHackage "blaze-svg" "0.3.7" , clash-ghc = H.callHackage "clash-ghc" "1.8.1" , clash-lib = H.callHackage "clash-lib" "1.8.1" , clash-prelude = H.callHackage "clash-prelude" "1.8.1" , concurrent-supply = H.callHackage "concurrent-supply" "0.1.8" , doctest-discover = H.callHackage "doctest-discover" "0.2.0.0" , double-conversion = H.callHackage "double-conversion" "2.0.5.0" , gcodehs = H.callHackage "gcodehs" "0.1.2.0" , ghc-typelits-extra = H.callHackage "ghc-typelits-extra" "0.4.7" , ghc-typelits-knownnat = H.callHackage "ghc-typelits-knownnat" "0.7.12" , ghc-typelits-natnormalise = H.callHackage "ghc-typelits-natnormalise" "0.7.10" , hw-hspec-hedgehog = H.callHackage "hw-hspec-hedgehog" "0.1.1.1" , implicit = H.callHackage "implicit" "0.4.1.0" , infinite-list = H.callHackage "infinite-list" "0.1.1" , lazysmallcheck = H.callHackage "lazysmallcheck" "0.6" , ordered-containers = H.callHackage "ordered-containers" "0.2.4" , pipes = H.callHackage "pipes" "4.3.16" , pipes-attoparsec = H.callHackage "pipes-attoparsec" "0.6.0" , pipes-bytestring = H.callHackage "pipes-bytestring" "2.1.7" , pipes-group = H.callHackage "pipes-group" "1.0.12" , pipes-parse = H.callHackage "pipes-parse" "3.0.9" , pipes-safe = H.callHackage "pipes-safe" "2.3.5" , prettyprinter-interp = H.callHackage "prettyprinter-interp" "0.2.0.0" , quickcheck-text = H.callHackage "quickcheck-text" "0.1.2.1" , show-combinators = H.callHackage "show-combinators" "0.2.0.0" , singletons = H.callHackage "singletons" "3.0.3" , string-interpolate = H.callHackage "string-interpolate" "0.3.4.0" , stringsearch = H.callHackage "stringsearch" "0.3.6.6" , text-conversions = H.callHackage "text-conversions" "0.3.1.1" } in H.HorizonExport.MakeOverlay { overlayFile = "overlay.nix" , packagesDir = "pkgs/" , overlay = { compiler = "ghc-9.8.1", packages = toMap packages } }