nix dev-shell: Use 'provides.devShell' by default

Thus

  $ nix dev-shell

will now build the 'provides.devShell' attribute from the flake in the
current directory. If it doesn't exist, it falls back to
'provides.defaultPackage'.

1 files changed, 5 insertions, 0 deletions

diff --git a/flake.nix b/flake.nix
index 95ec5d952..ab316c7c6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -17,5 +17,10 @@
     packages.nix = hydraJobs.build.x86_64-linux;
 
     defaultPackage = packages.nix;
+
+    devShell = import ./shell.nix {
+      nixpkgs = deps.nixpkgs;
+    };
+
   };
 }