diff --git a/Gemfile b/Gemfile
index 28f7d7e..d64c25b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -19,7 +19,7 @@ gem "jbuilder"
 # gem "bcrypt", "~> 3.1.7"
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
-gem "tzinfo-data", platforms: %i[ windows jruby ]
+gem 'tzinfo-data', platforms: %i[mingw mswin x64_mingw jruby]
 
 # Use the database-backed adapters for Rails.cache and Active Job
 gem "solid_cache"
@@ -33,7 +33,7 @@ gem "bootsnap", require: false
 
 group :development, :test do
   # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
-  gem "debug", platforms: %i[ mri windows ], require: "debug/prelude"
+  gem "debug", platforms: %i[mri mingw mswin x64_mingw], require: "debug/prelude"
 
   # Static analysis for security vulnerabilities [https://brakemanscanner.org/]
   gem "brakeman", require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index d10639c..b7c8a62 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -135,6 +135,7 @@ GEM
     marcel (1.0.4)
     matrix (0.4.2)
     mini_mime (1.1.5)
+    mini_portile2 (2.8.9)
     minitest (5.25.5)
     msgpack (1.8.0)
     net-imap (0.5.7)
@@ -147,21 +148,8 @@ GEM
     net-smtp (0.5.1)
       net-protocol
     nio4r (2.7.4)
-    nokogiri (1.18.8-aarch64-linux-gnu)
-      racc (~> 1.4)
-    nokogiri (1.18.8-aarch64-linux-musl)
-      racc (~> 1.4)
-    nokogiri (1.18.8-arm-linux-gnu)
-      racc (~> 1.4)
-    nokogiri (1.18.8-arm-linux-musl)
-      racc (~> 1.4)
-    nokogiri (1.18.8-arm64-darwin)
-      racc (~> 1.4)
-    nokogiri (1.18.8-x86_64-darwin)
-      racc (~> 1.4)
-    nokogiri (1.18.8-x86_64-linux-gnu)
-      racc (~> 1.4)
-    nokogiri (1.18.8-x86_64-linux-musl)
+    nokogiri (1.18.8)
+      mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     pp (0.6.2)
       prettyprint
@@ -242,14 +230,8 @@ GEM
       fugit (~> 1.11.0)
       railties (>= 7.1)
       thor (~> 1.3.1)
-    sqlite3 (2.6.0-aarch64-linux-gnu)
-    sqlite3 (2.6.0-aarch64-linux-musl)
-    sqlite3 (2.6.0-arm-linux-gnu)
-    sqlite3 (2.6.0-arm-linux-musl)
-    sqlite3 (2.6.0-arm64-darwin)
-    sqlite3 (2.6.0-x86_64-darwin)
-    sqlite3 (2.6.0-x86_64-linux-gnu)
-    sqlite3 (2.6.0-x86_64-linux-musl)
+    sqlite3 (2.6.0)
+      mini_portile2 (~> 2.8.0)
     stringio (3.1.7)
     thor (1.3.2)
     timeout (0.4.3)
@@ -272,15 +254,7 @@ GEM
     zeitwerk (2.7.2)
 
 PLATFORMS
-  aarch64-linux-gnu
-  aarch64-linux-musl
-  arm-linux-gnu
-  arm-linux-musl
-  arm64-darwin
-  x86_64-darwin
-  x86_64-linux
-  x86_64-linux-gnu
-  x86_64-linux-musl
+  ruby
 
 DEPENDENCIES
   annotaterb
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..34f9735
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,82 @@
+{
+  "nodes": {
+    "devshell": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1741473158,
+        "narHash": "sha256-kWNaq6wQUbUMlPgw8Y+9/9wP0F8SHkjy24/mN3UAppg=",
+        "owner": "numtide",
+        "repo": "devshell",
+        "rev": "7c9e793ebe66bcba8292989a68c0419b737a22a0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "devshell",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1747744144,
+        "narHash": "sha256-W7lqHp0qZiENCDwUZ5EX/lNhxjMdNapFnbErcbnP11Q=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "2795c506fe8fb7b03c36ccb51f75b6df0ab2553f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "devshell": "devshell",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "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
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..4039c1b
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,120 @@
+{
+  description = "Entrance exam";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    devshell = {
+      url = "github:numtide/devshell";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, nixpkgs, devshell, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs { inherit system; overlays = [ devshell.overlays.default ]; };
+        gems = pkgs.bundlerEnv rec {
+          name = "entrance-exam-env";
+          ruby = pkgs.ruby_3_4.override { jemallocSupport = true; };
+          gemfile = ./Gemfile;
+          lockfile = ./Gemfile.lock;
+          gemset = ./gemset.nix;
+          groups = [ "default" "development" "test" "production" ];
+        };
+        src = pkgs.lib.cleanSourceWith { filter = name: type: !(builtins.elem name [ ".github" "flake.lock" "flake.nix" ]); src = ./.; name = "source"; };
+      in
+      {
+        packages = rec {
+          default = entrance-exam;
+          entrance-exam = pkgs.stdenv.mkDerivation rec {
+            inherit src;
+
+            pname = "entrance-exam";
+            version = "0.1.0";
+
+            buildPhase = ''
+              # Compile bootsnap cache
+              ${gems}/bin/bundle exec bootsnap precompile --gemfile app/ lib/
+            '';
+
+            installPhase = ''
+              mkdir $out
+              cp -r * $out
+              rm -r $out/public
+            '';
+
+            passthru = {
+              assets = pkgs.stdenv.mkDerivation {
+                inherit src version;
+
+                pname = "entrance-exam-assets";
+
+                nativeBuildInputs = with pkgs; [
+                  nodejs
+                  yarnConfigHook
+                  yarnBuildHook
+                ];
+
+                yarnOfflineCache = pkgs.fetchYarnDeps {
+                  yarnLock = src + "/yarn.lock";
+                  hash = "sha256-jmVSCKHjDT1vmVRyXinKka7hK5hA37ZyE/pvRZ7z6T0=";
+                };
+
+                buildPhase = ''
+                  SECRET_KEY_BASE=000000 RAILS_ENV=production SKIP_YARN_INSTALL=1 ${gems}/bin/bundle exec rails assets:precompile
+                '';
+
+                installPhase = ''
+                  cp -r public $out
+                '';
+              };
+              env = gems;
+            };
+          };
+        };
+
+        devShells = rec {
+          default = entrance-exam;
+          entrance-exam = let
+            support-services = {
+              css.command = "yarn build:css --watch";
+              js.command = "yarn build:js --watch=forever";
+            };
+            all-services = support-services // {
+              rails = {
+                name = "server";
+                command = "rails s -p 3000";
+              };
+            };
+          in
+            pkgs.devshell.mkShell {
+            name = "Entrance Exam";
+            packages = [
+              gems
+              (pkgs.lowPrio gems.wrappedRuby)
+              pkgs.bundix
+              pkgs.nixpkgs-fmt
+              pkgs.yarn 
+              pkgs.yarn2nix
+            ];
+            serviceGroups = {
+              server.services = all-services;
+              server-support.services = support-services;
+            };
+            commands = [
+              {
+                name = "gems:update";
+                category = "dependencies";
+                help = "Update the `Gemfile.lock` and `gemset.nix` files";
+                command = ''
+                  ${pkgs.ruby_3_4}/bin/bundle lock
+                  ${pkgs.bundix}/bin/bundix
+                '';
+              }
+            ];
+          };
+        };
+      }
+    );
+}
diff --git a/gemset.nix b/gemset.nix
new file mode 100644
index 0000000..4db494f
--- /dev/null
+++ b/gemset.nix
@@ -0,0 +1,1064 @@
+{
+  actioncable = {
+    dependencies = ["actionpack" "activesupport" "nio4r" "websocket-driver" "zeitwerk"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "18496axh89kakw5f82mmmac3w9rwb0b0wq4j6la806p9cbgy5k3v";
+      type = "gem";
+    };
+    version = "8.0.2";
+  };
+  actionmailbox = {
+    dependencies = ["actionpack" "activejob" "activerecord" "activestorage" "activesupport" "mail"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1nyfwa1kj0cm1scqsbv723ypv69bzaxh886hliyjbrhk752v73rx";
+      type = "gem";
+    };
+    version = "8.0.2";
+  };
+  actionmailer = {
+    dependencies = ["actionpack" "actionview" "activejob" "activesupport" "mail" "rails-dom-testing"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1l3pnba14p0p7zsh366c31maxap030c97597vjimdv3nhnrnijdh";
+      type = "gem";
+    };
+    version = "8.0.2";
+  };
+  actionpack = {
+    dependencies = ["actionview" "activesupport" "nokogiri" "rack" "rack-session" "rack-test" "rails-dom-testing" "rails-html-sanitizer" "useragent"];
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0y2b5ydiqy32jbd9g5bl6v4aw6d7pjn5f3w2rxf2j59q9w307rwk";
+      type = "gem";
+    };
+    version = "8.0.2";
+  };
+  actiontext = {
+    dependencies = ["actionpack" "activerecord" "activestorage" "activesupport" "globalid" "nokogiri"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1grs41yr3nzw7zbnz0vkv8f4qd448a632saxkm3vnbzf68hb63d4";
+      type = "gem";
+    };
+    version = "8.0.2";
+  };
+  actionview = {
+    dependencies = ["activesupport" "builder" "erubi" "rails-dom-testing" "rails-html-sanitizer"];
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1fyfyxf2a798lxq6sfpnj94kmnpfp17xlhvjy428zhfzbi0f2f70";
+      type = "gem";
+    };
+    version = "8.0.2";
+  };
+  activejob = {
+    dependencies = ["activesupport" "globalid"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1jjk31di5kvcflc90wmgdd50jzhljhafi166h6hg67kbwd2qn8mh";
+      type = "gem";
+    };
+    version = "8.0.2";
+  };
+  activemodel = {
+    dependencies = ["activesupport"];
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0v35y2jzqlfy1wnrzlzj2cxylhnz09vykaa1l2dnkq7sl5zzpq8a";
+      type = "gem";
+    };
+    version = "8.0.2";
+  };
+  activerecord = {
+    dependencies = ["activemodel" "activesupport" "timeout"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "02nrya34qviawdkssyahb3mg08kqdc461b320a6ikr245jwp0d3r";
+      type = "gem";
+    };
+    version = "8.0.2";
+  };
+  activestorage = {
+    dependencies = ["actionpack" "activejob" "activerecord" "activesupport" "marcel"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0xr9cy6h8il61qq6w3rkvl56visms45ljm8f43r3ibh61wg24ggq";
+      type = "gem";
+    };
+    version = "8.0.2";
+  };
+  activesupport = {
+    dependencies = ["base64" "benchmark" "bigdecimal" "concurrent-ruby" "connection_pool" "drb" "i18n" "logger" "minitest" "securerandom" "tzinfo" "uri"];
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0pm40y64wfc50a9sj87kxvil2102rmpdcbv82zf0r40vlgdwsrc5";
+      type = "gem";
+    };
+    version = "8.0.2";
+  };
+  addressable = {
+    dependencies = ["public_suffix"];
+    groups = ["default" "test"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0cl2qpvwiffym62z991ynks7imsm87qmgxf0yfsmlwzkgi9qcaa6";
+      type = "gem";
+    };
+    version = "2.8.7";
+  };
+  annotaterb = {
+    groups = ["development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0x89s0w2mh5vqk9r4fxwlak7a31pp6nb4z409isijsj18f2g4v26";
+      type = "gem";
+    };
+    version = "4.14.0";
+  };
+  base64 = {
+    groups = ["default" "development" "test"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "01qml0yilb9basf7is2614skjp8384h2pycfx86cr8023arfj98g";
+      type = "gem";
+    };
+    version = "0.2.0";
+  };
+  benchmark = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0jl71qcgamm96dzyqk695j24qszhcc7liw74qc83fpjljp2gh4hg";
+      type = "gem";
+    };
+    version = "0.4.0";
+  };
+  bigdecimal = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1k6qzammv9r6b2cw3siasaik18i6wjc5m0gw5nfdc6jj64h79z1g";
+      type = "gem";
+    };
+    version = "3.1.9";
+  };
+  bindex = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0zmirr3m02p52bzq4xgksq4pn8j641rx5d4czk68pv9rqnfwq7kv";
+      type = "gem";
+    };
+    version = "0.8.1";
+  };
+  bootsnap = {
+    dependencies = ["msgpack"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0mdgj9yw1hmx3xh2qxyjc31y8igmxzd9h0c245ay2zkz76pl4k5c";
+      type = "gem";
+    };
+    version = "1.18.4";
+  };
+  brakeman = {
+    dependencies = ["racc"];
+    groups = ["development" "test"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "11ip6dgi7147wp8jgwk9g95k07323zh83q699d6wxif6rqdxj0mn";
+      type = "gem";
+    };
+    version = "7.0.2";
+  };
+  builder = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0pw3r2lyagsxkm71bf44v5b74f7l9r7di22brbyji9fwz791hya9";
+      type = "gem";
+    };
+    version = "3.3.0";
+  };
+  capybara = {
+    dependencies = ["addressable" "matrix" "mini_mime" "nokogiri" "rack" "rack-test" "regexp_parser" "xpath"];
+    groups = ["test"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1vxfah83j6zpw3v5hic0j70h519nvmix2hbszmjwm8cfawhagns2";
+      type = "gem";
+    };
+    version = "3.40.0";
+  };
+  concurrent-ruby = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1ipbrgvf0pp6zxdk5ascp6i29aybz2bx9wdrlchjmpx6mhvkwfw1";
+      type = "gem";
+    };
+    version = "1.3.5";
+  };
+  connection_pool = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0211c17ir0l8q7nm9n2g517l9cgi5fzjidn7c3wi2y91z28d08f1";
+      type = "gem";
+    };
+    version = "2.5.2";
+  };
+  crass = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0pfl5c0pyqaparxaqxi6s4gfl21bdldwiawrc0aknyvflli60lfw";
+      type = "gem";
+    };
+    version = "1.0.6";
+  };
+  cssbundling-rails = {
+    dependencies = ["railties"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0hbfji8lddlvsk9x70s5xvafl3w31v6mm5wjrn7rrb14gmdcvbjk";
+      type = "gem";
+    };
+    version = "1.4.3";
+  };
+  date = {
+    groups = ["default" "development" "test"];
+    platforms = [{
+      engine = "maglev";
+    } {
+      engine = "mingw";
+    } {
+      engine = "mingw";
+    } {
+      engine = "mswin";
+    } {
+      engine = "ruby";
+    }];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0kz6mc4b9m49iaans6cbx031j9y7ldghpi5fzsdh0n3ixwa8w9mz";
+      type = "gem";
+    };
+    version = "3.4.1";
+  };
+  debug = {
+    dependencies = ["irb" "reline"];
+    groups = ["development" "test"];
+    platforms = [{
+      engine = "maglev";
+    } {
+      engine = "mingw";
+    } {
+      engine = "mingw";
+    } {
+      engine = "mswin";
+    } {
+      engine = "ruby";
+    }];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1977s95s9ns6mpbhg68pg6ggnpxxf8wly4244ihrx5vm92kqrqhi";
+      type = "gem";
+    };
+    version = "1.10.0";
+  };
+  drb = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0h5kbj9hvg5hb3c7l425zpds0vb42phvln2knab8nmazg2zp5m79";
+      type = "gem";
+    };
+    version = "2.2.1";
+  };
+  erubi = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1naaxsqkv5b3vklab5sbb9sdpszrjzlfsbqpy7ncbnw510xi10m0";
+      type = "gem";
+    };
+    version = "1.13.1";
+  };
+  et-orbi = {
+    dependencies = ["tzinfo"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0r6zylqjfv0xhdxvldr0kgmnglm57nm506pcm6085f0xqa68cvnj";
+      type = "gem";
+    };
+    version = "1.2.11";
+  };
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+      type = "gem";
+    };
+    version = "0.16.11";
+  };
+  web-console = {
+    dependencies = ["actionview" "activemodel" "bindex" "railties"];
+    groups = ["development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "087y4byl2s3fg0nfhix4s0r25cv1wk7d2j8n5324waza21xg7g77";
+      type = "gem";
+    };
+    version = "4.2.1";
+  };
+  websocket = {
+    groups = ["default" "test"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0dr78vh3ag0d1q5gfd8960g1ca9g6arjd2w54mffid8h4i7agrxp";
+      type = "gem";
+    };
+    version = "1.2.11";
+  };
+  websocket-driver = {
+    dependencies = ["base64" "websocket-extensions"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1d26l4qn55ivzahbc7fwc4k4z3j7wzym05i9n77i4mslrpr9jv85";
+      type = "gem";
+    };
+    version = "0.7.7";
+  };
+  websocket-extensions = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0hc2g9qps8lmhibl5baa91b4qx8wqw872rgwagml78ydj8qacsqw";
+      type = "gem";
+    };
+    version = "0.1.5";
+  };
+  xpath = {
+    dependencies = ["nokogiri"];
+    groups = ["default" "test"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0bh8lk9hvlpn7vmi6h4hkcwjzvs2y0cmkk3yjjdr8fxvj6fsgzbd";
+      type = "gem";
+    };
+    version = "3.2.0";
+  };
+  zeitwerk = {
+    groups = ["default" "development"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0ws6rpyj0y9iadjg1890dwnnbjfdbzxsv6r48zbj7f8yn5y0cbl4";
+      type = "gem";
+    };
+    version = "2.7.2";
+  };
+}
diff --git a/package.json b/package.json
index 1d83185..6310ae6 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,8 @@
     "private": true,
     "scripts": {
         "build:js": "esbuild app/javascript/*.* --bundle --sourcemap --format=esm --outdir=app/assets/builds --public-path=/assets",
-        "build:css": "postcss ./app/assets/stylesheets/application.postcss.css -o ./app/assets/builds/application.css"
+        "build:css": "postcss ./app/assets/stylesheets/application.postcss.css -o ./app/assets/builds/application.css",
+        "build": "yarn run build:js && yarn run build:css"
     },
     "dependencies": {
         "autoprefixer": "^10.4.21",