Trying to get vscode to launch flatpak with gdbserver for remote debugging of flatpaks inside vscode.

launch.json

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "app-id": "",
    "configurations": [
        {
            "name": "(gdb) Launch",
            "type": "cppdbg",
            "request": "launch",
            "program": "/usr/bin/flatpak-spawn",
            "args": [
                "--host",
                "flatpak",
                "run",
                "--devel",
                "--command=gdbserver",
                "music.deadbeef.player//master",
                "localhost:2222",
                "deadbeef"
            ],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": true,
            "MIMode": "gdb",
            "miDebuggerServerAddress": "localhost:2222",
            // "debugServerPath": "/usr/bin/flatpak-spawn",
            // "debugServerArgs": "--host flatpak run --devel --command=gdbserver music.deadbeef.player//master localhost:2222 deadbeef",
            //"serverStarted": "Listening on port 2222",
            "sourceFileMap": {
                "/app/lib/debug/source/deadbeef": "/home/saivert/code/deadbeef"
            },
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ]
        }
    ]
}