Add flake-compat as an input for our flake.nix

flake.lock

@@ -1,5 +1,21 @@
 {
   "nodes": {
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1641205782,
+        "narHash": "sha256-4jY7RCWUoZ9cKD8co0/4tFARpWB+57+r1bLLvXNJliY=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "b7547d3eed6f32d06102ead8991ec52ab0a4f1a7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "locked": {
         "lastModified": 1638122382,
@@ -81,6 +97,7 @@
     },
     "root": {
       "inputs": {
+        "flake-compat": "flake-compat",
         "flake-utils": "flake-utils",
         "gitignore": "gitignore",
         "naersk": "naersk",

flake.nix

@@ -6,9 +6,9 @@
         gitignore = { url = "github:hercules-ci/gitignore.nix"; flake = false; };
         flake-utils.url = "github:numtide/flake-utils";
         naersk.url = "github:nix-community/naersk";
+        flake-compat = { url = github:edolstra/flake-compat; flake = false; };
     };
-
-    outputs = {self, nixpkgs, flake-utils, naersk, gitignore}:
+    outputs = {self, nixpkgs, flake-utils, naersk, gitignore, flake-compat}:
         let
             kitchenGen = (import ./nix/kitchen/default.nix);
             trunkGen = (import ./nix/trunk/default.nix);