tasks.json

{
    "version": "2.0.0",
    "tasks": [
        {
            "label": "Start App",
            "type": "dotenv",
            "targetTasks": [
                "Start App (Script)"
            ],
            "file": "${input:dotEnvFilePath}"
        },
        {
            "label": "Start App (Script)",
            "type": "shell",
            "command": "${workspaceFolder}/app/start.sh",
            "windows": {
                "command": "pwsh ${workspaceFolder}/app/start.ps1"
            },
            "presentation": {
                "reveal": "silent"
            },
            "options": {
                "cwd": "${workspaceFolder}/app"
            },
            "problemMatcher": []
        }
    ],
    "inputs": [
        {
            "id": "dotEnvFilePath",
            "type": "command",
            "command": "azure-dev.commands.getDotEnvFilePath"
        }
    ]
}