Use bellroy-nix-foss

cached-io.nix

@@ -1,22 +1,13 @@
-{ mkDerivation
-, lib
-, base
-, exceptions
-, stm
-, time
-, transformers
-}:
+{ mkDerivation, base, exceptions, lib, stm, time, transformers }:
 mkDerivation {
   pname = "cached-io";
-  version = "1.1.0.0";
+  version = "1.3.0.0";
   src = ./.;
-  libraryHaskellDepends = [
-    base
-    exceptions
-    stm
-    time
-    transformers
-  ];
-  description = "A simple library to cache a single IO action with timeout";
+  isLibrary = true;
+  isExecutable = true;
+  libraryHaskellDepends = [ base exceptions stm time transformers ];
+  executableHaskellDepends = [ base ];
+  description = "A simple library to cache IO actions";
   license = lib.licenses.asl20;
+  mainProgram = "test-cachedIO";
 }

flake.nix

@@ -2,53 +2,26 @@
   description = "A simple library to cache a single IO action with timeout";
 
   inputs = {
-    flake-utils.url = "github:numtide/flake-utils";
-    nixpkgs.url = "github:nixos/nixpkgs";
+    bellroy-nix-foss.url = "github:bellroy/bellroy-nix-foss";
   };
 
-  outputs = { self, flake-utils, nixpkgs }:
-    flake-utils.lib.eachDefaultSystem (system:
-      let
-        pkgs = import nixpkgs { inherit system; };
-      in
-      rec
-      {
-        # This becomes the list of package and devShell names.
-        supportedCompilers = [
-          "ghc88"
-          "ghc810"
-          "ghc90"
-          "ghc92"
-          "ghc94"
-          "ghc96"
-          "ghc98"
-        ];
-
-        packages = builtins.listToAttrs (
-          builtins.map
-            (compiler: {
-              name = compiler;
-              value = pkgs.haskell.packages.${compiler}.callPackage ./cached-io.nix { };
-            })
-            supportedCompilers
-        );
-
-        devShells' = (builtins.mapAttrs
-          (compiler: v: v.env.overrideAttrs (oldAttrs: {
-            buildInputs = oldAttrs.buildInputs
-              ++ [ pkgs.nixpkgs-fmt ]
-              ++ (with pkgs.haskell.packages.${compiler}; [
-              cabal-fmt
-              cabal-install
-              doctest
-              haskell-ci
-              haskell-language-server
-              hlint
-            ]);
-          }))
-          packages
-        );
-
-        devShells = devShells' // { default = devShells'.ghc92; };
-      });
+  outputs = inputs:
+    inputs.bellroy-nix-foss.lib.haskellProject {
+      cabalPackages = [
+        {
+          name = "cached-io";
+          path = ./cached-io.nix;
+        }
+      ];
+      supportedCompilers = [
+        "ghc810"
+        "ghc90"
+        "ghc92"
+        "ghc94"
+        "ghc96"
+        "ghc98"
+        "ghc910"
+      ];
+      defaultCompiler = "ghc96";
+    };
 }