Start migrating to a flake

default.nix

@@ -1,6 +1,6 @@
-{ pkgs }:
+{ mkYarnPackage }:
 
-pkgs.mkYarnPackage {
+mkYarnPackage {
   name = "katex-server";
   src = ./.;
   packageJSON = ./package.json;

flake.lock

@@ -0,0 +1,42 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1648297722,
+        "narHash": "sha256-W+qlPsiZd8F3XkzXOzAoR+mpFqzm3ekQkJNa+PIh1BQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "0f8662f1319ad6abf89b3380dd2722369fc51ade",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1648425779,
+        "narHash": "sha256-0tcpEiiq3f3Hh77ax7QFuF15AnPaBIdDSbvrCUeyb9k=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "1edfe6d91bd8348cfccacd72e82d1d06ad470117",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,19 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (
+      system:
+        let
+	  pkgs = import nixpkgs { inherit system; };
+	  katex-server = pkgs.callPackage ./default.nix {};
+	in
+          {
+            packages = { inherit katex-server; };
+	    defaultPackage = katex-server;
+          }
+    );
+}