Manifests/Slack.json

{
    "Name": "Slack",
    "Source": "https://slack.com/intl/en-au/help/articles/212475728-Deploy-Slack-via-Microsoft-Installer",
    "Get": {
        "Update": {
            "Uri": ""
        },
        "Download": {
            "PerUser": {
                "x64": "https://slack.com/ssb/download-win64-msi-legacy"
            },
            "PerMachine": {
                "x64": "https://slack.com/ssb/download-win64-msi"
            }
        },
        "MatchVersion": "(\\d+(\\.\\d+){1,4})"
    },
    "Install": {
        "Setup": "Slack.*.msi",
        "Physical": {
            "Arguments": "/quiet /norestart",
            "PostInstall": [

            ]
        },
        "Virtual": {
            "Arguments": "/quiet /norestart",
            "PostInstall": [

            ]
        }
    }
}