diff --git a/.codex/environments/environment.toml b/.codex/environments/environment.toml
new file mode 100644
index 00000000..98cd2345
--- /dev/null
+++ b/.codex/environments/environment.toml
@@ -0,0 +1,25 @@
+# THIS IS AUTOGENERATED. DO NOT EDIT MANUALLY
+version = 1
+name = "client"
+
+[setup]
+script = '''
+cd "$CODEX_WORKTREE_PATH"
+
+if [ ! -f .env ]; then
+  cp .env.example .env
+fi
+
+flutter pub get --enforce-lockfile
+dart run build_runner build --delete-conflicting-outputs
+'''
+
+[[actions]]
+name = "Run"
+icon = "run"
+command = "flutter run"
+
+[[actions]]
+name = "Test"
+icon = "test"
+command = "flutter test --reporter=expanded"