Update Nix flake, add readme

.gitignore

@@ -1,2 +1,3 @@
 /target
 /.direnv
+/result

Cargo.lock

@@ -3,5 +3,5 @@
 version = 3
 
 [[package]]
-name = "learn-rust-in-a-month-of-lunches"
+name = "learnrust"
 version = "0.1.0"

Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "learn-rust-in-a-month-of-lunches"
+name = "learnrust"
 version = "0.1.0"
 edition = "2021"
 

flake.lock

@@ -2,7 +2,9 @@
   "nodes": {
     "naersk": {
       "inputs": {
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": [
+          "nixpkgs"
+        ]
       },
       "locked": {
         "lastModified": 1698153314,
@@ -20,19 +22,6 @@
       }
     },
     "nixpkgs": {
-      "locked": {
-        "lastModified": 1697723726,
-        "narHash": "sha256-SaTWPkI8a5xSHX/rrKzUe+/uVNy6zCGMXgoeMb7T9rg=",
-        "path": "/nix/store/4jfc6vrkmq7z5pb651jh5b4kra5f1kwp-source",
-        "rev": "7c9cc5a6e5d38010801741ac830a3f8fd667a7a0",
-        "type": "path"
-      },
-      "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
-      }
-    },
-    "nixpkgs_2": {
       "locked": {
         "lastModified": 1697915759,
         "narHash": "sha256-WyMj5jGcecD+KC8gEs+wFth1J1wjisZf8kVZH13f1Zo=",
@@ -51,7 +40,7 @@
     "root": {
       "inputs": {
         "naersk": "naersk",
-        "nixpkgs": "nixpkgs_2",
+        "nixpkgs": "nixpkgs",
         "utils": "utils"
       }
     },

flake.nix

@@ -1,7 +1,12 @@
 {
   inputs = {
-    naersk.url = "github:nix-community/naersk/master";
     nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+
+    naersk = {
+      url = "github:nix-community/naersk/master";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
     utils.url = "github:numtide/flake-utils";
   };
 
@@ -15,7 +20,11 @@
       pkgs = import nixpkgs {inherit system;};
       naersk-lib = pkgs.callPackage naersk {};
     in {
-      defaultPackage = naersk-lib.buildPackage ./.;
+      packages.default = naersk-lib.buildPackage ./.;
+      formatter = nixpkgs.legacyPackages.${system}.alejandra;
+      checks = {
+        inherit (self.packages.${system}) default;
+      };
       devShell = with pkgs;
         mkShell {
           buildInputs = [

readme.md

@@ -0,0 +1,8 @@
+# Learn Rust in a Month of Lunches
+
+Bought [this book][book] and this code contains my musings and other stuff that
+I write as I work through it.
+
+Enjoy!
+
+[book]: https://www.manning.com/books/learn-rust-in-a-month-of-lunches?ar=false&lpse=B

src/main.rs

@@ -1,3 +1,4 @@
+/// a doc comment - use `cargo doc --open` to see it?
 fn main() {
     println!("Hello, world!");
 }