feat: add Dolphin traversal server for GameCube/Wii netplay

Self-hosted NAT hole-punching relay for Dolphin emulator netplay.
Enables online play for ALL GameCube and Wii games without players
needing to open ports (Mario Party 4-7, MKDD, Smash Melee, etc).

Multi-stage Docker build compiles only the traversal_server target.
UDP ports 6262 (primary) and 6226 (NAT probe).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker/docker-compose.dev.yml

@@ -90,7 +90,7 @@ services:
       dockerfile: Dockerfile
     restart: unless-stopped
     environment:
-      SHARD_IP: ${PUBLIC_HOST:-192.168.10.234}
+      SHARD_IP: 192.168.10.234
       MOTD: ${OPENFUSION_MOTD:-Bienvenido a Project Afterlife - FusionFall Academy}
     ports:
       - "23000:23000"
@@ -172,6 +172,62 @@ services:
     volumes:
       - afc_bridge_data:/data
 
+  sm64coopdx:
+    build:
+      context: ../servers/sm64coopdx
+      dockerfile: Dockerfile
+    restart: unless-stopped
+    container_name: sm64coopdx
+    environment:
+      SM64_PORT: ${SM64_PORT:-7777}
+      SM64_PLAYERS: ${SM64_PLAYERS:-16}
+    ports:
+      - "7777:7777/udp"
+    volumes:
+      - sm64_save:/server/save
+      - sm64_mods:/server/mods
+    deploy:
+      resources:
+        limits:
+          memory: 2G
+
+  n64-netplay:
+    image: k4rian/gopher64-netplay-server:latest
+    container_name: n64-netplay
+    restart: unless-stopped
+    environment:
+      G64NS_NAME: "Afterlife N64 - Mario Party"
+      G64NS_PORT: 45000
+      G64NS_MAXGAMES: 4
+      G64NS_MOTD: "Bienvenido a Project Afterlife - Mario Party N64"
+      G64NS_LOGPATH: "gopher64-server.log"
+      G64NS_DISABLEBROADCAST: "false"
+      G64NS_ENABLEAUTH: "false"
+    ports:
+      - "45000-45004:45000-45004/tcp"
+      - "45000-45004:45000-45004/udp"
+    volumes:
+      - n64_netplay_data:/home/gopher64
+      - /etc/localtime:/etc/localtime:ro
+    deploy:
+      resources:
+        limits:
+          memory: 128M
+
+  dolphin-traversal:
+    build:
+      context: ../servers/dolphin-traversal
+      dockerfile: Dockerfile
+    container_name: dolphin-traversal
+    restart: unless-stopped
+    ports:
+      - "6262:6262/udp"
+      - "6226:6226/udp"
+    deploy:
+      resources:
+        limits:
+          memory: 64M
+
 volumes:
   postgres_data:
   minio_data:
@@ -179,6 +235,9 @@ volumes:
   minecraft_ftb_data:
   geth_data:
   afc_bridge_data:
+  sm64_save:
+  sm64_mods:
+  n64_netplay_data:
   certbot_etc:
     external: true
     name: docker_certbot_etc

docker/docker-compose.maple2.yml

@@ -52,6 +52,7 @@ services:
       - ../servers/maple2/.env
     environment:
       DB_IP: maple2-mysql
+      GRPC_LOGIN_IP: maple2-login
 
   maple2-login:
     build:
@@ -104,15 +105,15 @@ services:
       maple2-world:
         condition: service_started
     ports:
-      - "20002:20002"
-      - "21002:21002"
+      - "20003:20003"
+      - "21003:21003"
     env_file:
       - ../servers/maple2/.env
     environment:
       DB_IP: maple2-mysql
       GRPC_GAME_IP: maple2-game-ch0
       GRPC_WORLD_IP: maple2-world
-      INSTANCED_CONTENT: "true"
+      INSTANCED_CONTENT: "false"
 
 volumes:
   maple2_mysql:

servers/dolphin-traversal/.dockerignore

@@ -0,0 +1,2 @@
+*.md
+.git

servers/dolphin-traversal/Dockerfile

@@ -0,0 +1,51 @@
+# Dolphin Emulator Traversal Server
+# Lightweight NAT hole-punching relay for Dolphin netplay
+# Supports ALL GameCube/Wii games via Dolphin
+
+# --- Build stage ---
+FROM debian:bookworm AS build
+
+RUN apt-get update && apt-get install -y \
+    build-essential cmake git pkg-config \
+    libfmt-dev libenet-dev libcurl4-openssl-dev \
+    libbz2-dev liblzma-dev libzstd-dev zlib1g-dev \
+    liblzo2-dev liblz4-dev libspng-dev \
+    libusb-1.0-0-dev libevdev-dev libpugixml-dev libxxhash-dev \
+    libminiupnpc-dev libhidapi-dev libsystemd-dev libudev-dev \
+    glslang-dev glslang-tools \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /dolphin
+
+RUN git clone --depth 1 https://github.com/dolphin-emu/dolphin.git . \
+    && git submodule update --init --recursive --depth 1
+
+RUN mkdir build && cd build && cmake .. \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DENABLE_QT=OFF \
+    -DENABLE_NOGUI=OFF \
+    -DENABLE_CLI=OFF \
+    -DENABLE_TESTS=OFF \
+    -DUSE_DISCORD_PRESENCE=OFF \
+    -DENABLE_AUTOUPDATE=OFF \
+    -DENABLE_ANALYTICS=OFF
+
+RUN cd build && cmake --build . --target traversal_server -j$(nproc)
+
+# --- Runtime stage ---
+FROM debian:bookworm-slim
+
+RUN apt-get update && apt-get install -y \
+    libfmt9 libstdc++6 \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN useradd -r -s /bin/false dolphin
+
+COPY --from=build /dolphin/build/Binaries/traversal_server /usr/local/bin/traversal_server
+
+USER dolphin
+
+EXPOSE 6262/udp
+EXPOSE 6226/udp
+
+CMD ["traversal_server"]

servers/openfusion/config.ini

@@ -1,5 +1,5 @@
 # OpenFusion Server Configuration (Docker)
-verbosity=1
+verbosity=3
 sandbox=false
 
 [login]

servers/sm64coopdx/.dockerignore

@@ -0,0 +1,2 @@
+*.md
+.git

servers/sm64coopdx/.gitignore

@@ -0,0 +1,4 @@
+# SM64 ROM — copyrighted, not distributable
+*.z64
+*.n64
+*.v64

servers/sm64coopdx/Dockerfile

@@ -0,0 +1,57 @@
+# sm64coopdx headless dedicated server
+# Requires baserom.us.z64 (SM64 US ROM) in build context
+
+# --- Build stage ---
+FROM ubuntu:jammy AS build
+
+RUN apt-get update && apt-get install -y \
+    binutils-mips-linux-gnu \
+    bsdmainutils \
+    build-essential \
+    libcapstone-dev \
+    pkgconf \
+    python3 \
+    libz-dev \
+    libcurl4-openssl-dev \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /sm64
+
+RUN git clone --depth 1 https://github.com/coop-deluxe/sm64coopdx.git .
+
+COPY baserom.us.z64 .
+
+# Patch: add missing float.h include (GCC 11 strictness)
+RUN sed -i '1i #include <float.h>' src/engine/math_util.c
+
+# Patch: fix platform.c fallback — upstream renamed functions but forgot the #else branch
+RUN sed -i 's/const char \*sys_exe_path(void) {/const char *sys_exe_path_dir(void) {\n    return ".";\n}\n\nconst char *sys_resource_path(void) {\n    return ".";\n}\n\nconst char *sys_exe_path(void) {/' src/pc/platform.c
+
+RUN make HEADLESS=1 DISCORD_SDK=0 COOPNET=0 -j$(nproc)
+
+# --- Runtime stage ---
+FROM ubuntu:jammy
+
+RUN apt-get update && apt-get install -y \
+    libcurl4 \
+    libz1 \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN useradd -m -s /bin/bash sm64
+
+WORKDIR /server
+
+COPY --from=build /sm64/build/us_pc/ .
+COPY --from=build /sm64/baserom.us.z64 .
+
+RUN mkdir -p /server/mods /server/save && chown -R sm64:sm64 /server
+
+USER sm64
+
+EXPOSE 7777/udp
+
+ENV SM64_PORT=7777
+ENV SM64_PLAYERS=16
+
+ENTRYPOINT ["sh", "-c", "./sm64coopdx --server ${SM64_PORT} --headless --playercount ${SM64_PLAYERS} --skip-intro"]