composer.json

{
    "name": "vendor/my-ext",
    "type": "typo3-cms-extension",
    "description": "Your description goes here.",
    "keywords": [
        "TYPO3 CMS",
        "Extension",
        "Example",
        "DDEV"
    ],
    "homepage": "https://github.com/a-r-m-i-n/ddev-for-typo3-extensions",
    "license": "GPL-2.0-or-later",
    "authors": [
        {
            "name": "Armin Vieweg",
            "role": "Developer",
            "email": "info@v.ieweg.de",
            "homepage": "https://v.ieweg.de"
        }
    ],
    "require": {
        "php": ">=8.2",
        "typo3/cms-core": "^11.5 || ^12.4 || ^13"
    },
    "autoload": {
        "psr-4": {
            "Vendor\\MyExt\\": "Classes"
        }
    },
    "replace": {
        "typo3-ter/my_ext": "*"
    },
    "extra": {
        "typo3/cms": {
            "extension-key": "my_ext"
        }
    }
}