Каркас проекта: ТЗ, nginx+gameserver(uWebSockets) в Docker, /ws echo

Frontend — чистый HTML/CSS/JS без сборки (резюме, проекты, игра-заглушки).
Gameserver — C++ на uWebSockets (CMake FetchContent), протокол hello/lobby.list_rooms/error проверен end-to-end.

gameserver/CMakeLists.txt

@@ -0,0 +1,47 @@
+cmake_minimum_required(VERSION 3.16)
+project(cactoz_gameserver CXX C)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+include(FetchContent)
+
+FetchContent_Declare(
+  uwebsockets
+  GIT_REPOSITORY https://github.com/uNetworking/uWebSockets.git
+  GIT_TAG v20.79.0
+)
+FetchContent_MakeAvailable(uwebsockets)
+
+# uWebSockets pulls uSockets in via a git submodule, which plain FetchContent
+# does not check out. Fetch the exact commit uWebSockets v20.79.0 pins instead.
+FetchContent_Declare(
+  usockets_src
+  GIT_REPOSITORY https://github.com/uNetworking/uSockets.git
+  GIT_TAG 86097c490263ab662d62e8e7b541390bdec7d149
+)
+FetchContent_MakeAvailable(usockets_src)
+
+FetchContent_Declare(
+  json
+  GIT_REPOSITORY https://github.com/nlohmann/json.git
+  GIT_TAG v3.12.0
+)
+FetchContent_MakeAvailable(json)
+
+file(GLOB USOCKETS_SOURCES
+  ${usockets_src_SOURCE_DIR}/src/*.c
+  ${usockets_src_SOURCE_DIR}/src/eventing/*.c
+)
+add_library(usockets STATIC ${USOCKETS_SOURCES})
+target_include_directories(usockets PUBLIC ${usockets_src_SOURCE_DIR}/src)
+target_compile_definitions(usockets PUBLIC LIBUS_NO_SSL LIBUS_USE_EPOLL)
+
+add_executable(gameserver
+  src/main.cpp
+)
+target_include_directories(gameserver PRIVATE
+  ${uwebsockets_SOURCE_DIR}/src
+  src
+)
+target_link_libraries(gameserver PRIVATE usockets nlohmann_json::nlohmann_json pthread z)