This is the DSubs server executable and development tools source code. DSubs is a multiplayer sensor-focused submarine simulator.
Forum link: https://www.subsim.com/radioroom/showthread.php?p=2598851

• DMD compiler 2.093.1 (http://downloads.dlang.org/releases/2020/)
• anything else is handled by git submodules and dub build system.

• OpenCL-1.2 capable GPU/emulator is required.

• Mariadb for storing user logins/passwords and campaign progress (beta).
• InfluxDB for telemetry and replay data.

• Download and install the compiler: http://downloads.dlang.org/releases/2020/dmd-2.093.1.exe
• Download and install C++ redist for VS 2015: https://www.microsoft.com/en-US/download/details.aspx?id=48145
• Clone this repository with all submodules: git clone --recursive
• Open CMD or powershell and enter "dsubs/dsubs_server" folder.
• Execute command: dub --arch=x86_64 -b debug.
• If it fails to build and run the server, open an issue, so we can fix the documentation.

• Download and install the compiler using script: https://dlang.org/install.html. It behaves like python virtualenv, so you need to activate it before trying to invoke dub/dmd.

mkdir -p ~/dlang && wget https://dlang.org/install.sh -O ~/dlang/install.sh && \
    bash ~/dlang/install.sh install dmd-2.093.1
source ~/dlang/dmd-2.093.1/activate

• Clone this repository with all submodules: git clone --recursive
• Enter "dsubs/dsubs_server" folder in your shell.
• Execute run.sh script:
  ./run.sh
• If it fails to build and run the client, open an issue, so we can fix the documentation.

Visual Studio Code with code-d and Trailing Spaces plugins are recommended. I do not know how to debug it under Windows without switching to Visual Studio with dlang plugin, which is very sensitive to code structure and compiler versioning.
Code-d often has troubles with auto-discovering dependency folders, so auto-completion is broken. I use explicit include-paths in vscode workspace settings in order to force what I need. Example part of global vscode settings.json:

...
"d.stdlibPath": [
        "/home/boris/dlang/dmd-2.093.1/src/phobos",
        "/home/boris/dlang/dmd-2.093.1/src/druntime/import"
    ],
...

dsubs_ws.code-workspace file that I have created in dsubs folder:

{
	"folders": [
		{
			"path": "."
		}
	],
	"settings": {
		"d.projectImportPaths": [
			"/home/boris/src/dsubs/DerelictSFML2/source/",
			"/home/boris/.dub/packages/derelict-cl-3.2.0/derelict-cl/source",
			"/home/boris/.dub/packages/derelict-util-2.0.6/derelict-util/source",
			"/home/boris/.dub/packages/derelict-al-1.0.3/derelict-al/source",
			"/home/boris/.dub/packages/standardpaths-0.8.1/standardpaths/source",
			"/home/boris/src/dsubs/dsubs_client/source/",
			"/home/boris/src/dsubs/dsubs_common/source/",
			"/home/boris/.dub/packages/gfm-6.2.13/gfm/math"
		],
		"debug.node.autoAttach": "off"
	}
}

These paths are version- and os-specific, you'll have to change them to fit your filesystem structure.

Debugging on linux can be performed using mainstream gdb or gdbgui tools.