100% Clustered Stacked Column Chart with data labels

no idea what that means.

Table:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WckktyMmvTE1R0lEyNjQBkkaWFoZKsTrRSsGpRWWpRcVAIUsgNoCLZSanggRBao1NwaKORckZmWWpQAFDiMpYAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [System = _t, Alerts = _t, OK = _t]),
    #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(Source, {"System"}, "Attribute", "Value"),
    #"Changed Type" = Table.TransformColumnTypes(#"Unpivoted Other Columns",{{"Value", type number}})
in
    #"Changed Type"

Vega Lite:

{
  "data": {"name": "dataset"},
  "encoding": {
    "x": {
      "field": "System",
      "type": "nominal"
    },
    "y": {
      "field": "Sum of Value",
      "type": "quantitative",
      "stack":"normalize"
    },
    "yOffset": {"field": "Attribute"},
    "color": {"field": "Attribute"},
    "opacity": {
      "condition": {
        "test": {
          "field": "__selected__",
          "equal": "off"
        },
        "value": 0.3
      },
      "value": 1
    }
  },
  "layer": [
    {
      "mark": {
        "type": "bar",
        "tooltip": true
      }
    },
    {
      "mark": {
        "type": "text",
        "color": "black",
        "dx": -15,
        "dy": -15
      },
      "encoding": {
        "detail": {
          "type": "nominal",
          "field": "Attribute"
        },
        "text": {
          "type": "quantitative",
          "aggregate": "sum",
          "field": "Sum of Value",
          "format": ".0f"
        }
      }
    }
  ]
}