From 4386fe3c7e054d666d77b980b5ea819a2d52d109 Mon Sep 17 00:00:00 2001
From: Peter Hoeg <peter@hoeg.com>
Date: Thu, 30 May 2024 10:42:39 +0200
Subject: [PATCH] stop using deprecated flake attributes

---
 flake.nix | 28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/flake.nix b/flake.nix
index c01a44a..20384b5 100644
--- a/flake.nix
+++ b/flake.nix
@@ -28,24 +28,26 @@
 
             nativeBuildInputs = with pkgs; [ pkg-config ];
           };
-        };
 
-        defaultPackage = packages.crystal2nix;
+          default = crystal2nix;
+        };
 
-        checks = flake-utils.lib.flattenTree rec {
+        checks = flake-utils.lib.flattenTree {
           specs = packages.crystal2nix;
         };
 
-        devShell = pkgs.mkShell {
-          buildInputs = with pkgs; [
-            openssl
-          ];
-
-          nativeBuildInputs = with pkgs; [
-            pkgconfig
-            crystal
-            shards
-          ];
+        devShells = flake-utils.lib.flattenTree {
+          default = pkgs.mkShell {
+            buildInputs = with pkgs; [
+              openssl
+            ];
+
+            nativeBuildInputs = with pkgs; [
+              pkg-config
+              crystal
+              shards
+            ];
+          };
         };
       });
 }