set up environment

.vscode/settings.json

@@ -1,5 +0,0 @@
-{
-    "rust-analyzer.linkedProjects": [
-        "./helloworld/Cargo.toml",
-    ]
-}

Cargo.toml

@@ -1,3 +1,3 @@
 [workspace]
-members = ["helloworld"]
+members = ["day1"]
 resolver = "2"

day1/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "helloworld"
+name = "day1"
 version = "0.1.0"
 edition = "2021"
 

flake.lock

@@ -0,0 +1,96 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1681202837,
+        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1701253981,
+        "narHash": "sha256-ztaDIyZ7HrTAfEEUt9AtTDNoCYxUdSd6NrRHaYOIxtk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "e92039b55bcd58469325ded85d4f58dd5a4eaf58",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1681358109,
+        "narHash": "sha256-eKyxW4OohHQx9Urxi7TQlFBTDWII+F+x2hklDOQPB50=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "96ba1c52e54e74c3197f4d43026b3f3d92e83ff9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "rust-overlay": "rust-overlay"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1701397143,
+        "narHash": "sha256-nYUJxZXwCWWVBYZXPgRxGDuQcZRhKTtD/Jp5Jl+9EWU=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "bb71557c93cad40f5921b2342d7fd69f9e6497ab",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -1,6 +1,6 @@
 /*
 TODO
-1. Find and replace "helloworld" with your package name for **ALL FILES IN REPOSITORY**
+1. Find and replace "day1" with your package name for **ALL FILES IN REPOSITORY**
 2. Add a flake description that describes the workspace on line 27
 3. Add a package description on line 70
 4. (optional) uncomment `nativeBuildInputs` and `buildInputs` on lines 43 and 44 if you need openssl
@@ -13,8 +13,8 @@ TODO
 Some utility commands:
 - `nix flake update --commit-lock-file`
 - `nix flake lock update-input <input>`
-- `nix build .#helloworld` or `nix build .`
+- `nix build .#day1` or `nix build .`
-- `nix run .#helloworld` or `nix run .`
+- `nix run .#day1` or `nix run .`
 */
 
 {
@@ -53,17 +53,17 @@ Some utility commands:
           cargo-edit
           bacon
         ];
-        inputsFrom = with self.packages.${system}; [ helloworld ];
+        inputsFrom = with self.packages.${system}; [ day1 ];
       };
       packages.${system} = {
-        default = self.packages.${system}.helloworld;
+        default = self.packages.${system}.day1;
-        helloworld = pkgs.rustPlatform.buildRustPackage (rustSettings // {
+        day1 = pkgs.rustPlatform.buildRustPackage (rustSettings // {
-          pname = "helloworld";
+          pname = "day1";
           version = "0.1.0";
-          buildAndTestSubdir = "helloworld";
+          buildAndTestSubdir = "day1";
           cargoHash = "sha256-+TaGIiKf+Pz2bTABeG8aCZz0/ZTCKl5398+qbas4Nvo=";
           meta = meta // {
-            description = "";
+            description = "Advent of code solution: day 1";
           };
         });
       };
@@ -71,14 +71,14 @@ Some utility commands:
       nixosModules.default = { config, ... }: let
         lib = nixpkgs.lib;
       in {
-        options.services.helloworld = {
+        options.services.day1 = {
-          enable = lib.mkEnableOption (lib.mdDoc "helloworld service");
+          enable = lib.mkEnableOption (lib.mdDoc "day1 service");
           package = lib.mkOption {
             type = lib.types.package;
-            default = self.packages.${system}.helloworld;
+            default = self.packages.${system}.day1;
-            defaultText = "pkgs.helloworld";
+            defaultText = "pkgs.day1";
             description = lib.mdDoc ''
-              The helloworld package that should be used.
+              The day1 package that should be used.
             '';
           };
           port = lib.mkOption {
@@ -89,16 +89,16 @@ Some utility commands:
             '';
           };
         };
-        config.systemd.services.helloworld = let
+        config.systemd.services.day1 = let
-          cfg = config.services.helloworld;
+          cfg = config.services.day1;
-          pkg = self.packages.${system}.helloworld;
+          pkg = self.packages.${system}.day1;
         in lib.mkIf cfg.enable {
           description = pkg.meta.description;
           after = [ "network.target" ];
           wantedBy = [ "network.target" ];
           serviceConfig = {
             ExecStart = ''
-              ${cfg.package}/bin/helloworld --port ${builtins.toString cfg.port}
+              ${cfg.package}/bin/day1 --port ${builtins.toString cfg.port}
             '';
             Restart = "always";
             DynamicUser = true;