diff --git a/source/structure/r6.sindri.json b/source/structure/r6.sindri.json
new file mode 100644
index 0000000..a6c393b
--- /dev/null
+++ b/source/structure/r6.sindri.json
@@ -0,0 +1,205 @@
+{
+	"domains": [
+		{
+			"name": "sessions",
+			"data_fields": [
+				{
+					"name": "key",
+					"type": "string_medium",
+					"nullable": false
+				},
+				{
+					"name": "data",
+					"type": "string_long",
+					"nullable": false
+				}
+			],
+			"constraints": [
+				{
+					"kind": "unique",
+					"parameters": {
+						"fields": ["key"]
+					}
+				}
+			]
+		},
+		{
+			"name": "name_indices",
+			"data_fields": [
+				{
+					"name": "name_image",
+					"type": "string_medium",
+					"nullable": false
+				},
+				{
+					"name": "index",
+					"type": "integer",
+					"nullable": false
+				}
+			],
+			"constraints": [
+				{
+					"kind": "unique",
+					"parameters": {
+						"fields": ["name_image"]
+					}
+				}
+			]
+		},
+		{
+			"name": "members",
+			"key_field": {
+				"name": "id"
+			},
+			"data_fields": [
+				{
+					"name": "membership_number",
+					"type": "string_short",
+					"nullable": true
+				},
+				{
+					"name": "name_real_value",
+					"type": "string_short",
+					"nullable": false
+				},
+				{
+					"name": "name_real_index",
+					"type": "integer",
+					"nullable": false
+				},
+				{
+					"name": "email_address_private",
+					"type": "string_short",
+					"nullable": true
+				},
+				{
+					"name": "registered",
+					"type": "boolean",
+					"nullable": false
+				},
+				{
+					"name": "enabled",
+					"type": "boolean",
+					"nullable": false
+				},
+				{
+					"name": "email_use_veiled_address",
+					"type": "boolean",
+					"nullable": false
+				},
+				{
+					"name": "email_use_nominal_address",
+					"type": "boolean",
+					"nullable": false
+				},
+				{
+					"name": "email_redirect_to_private_address",
+					"type": "boolean",
+					"nullable": false
+				},
+				{
+					"name": "email_allow_sending",
+					"type": "boolean",
+					"nullable": false
+				},
+				{
+					"name": "password_image",
+					"type": "string_medium",
+					"nullable": true
+				},
+				{
+					"name": "password_change_last_attempt",
+					"type": "integer",
+					"nullable": true
+				},
+				{
+					"name": "password_change_token",
+					"type": "string_medium",
+					"nullable": true
+				}
+			],
+			"constraints": [
+				{
+					"kind": "unique",
+					"parameters": {
+						"fields": ["name_real_value","name_real_index"]
+					}
+				}
+			]
+		},
+		{
+			"name": "member_groups",
+			"data_fields": [
+				{
+					"name": "member_id",
+					"type": "integer",
+					"nullable": false
+				},
+				{
+					"name": "group_name",
+					"type": "string_medium",
+					"nullable": false
+				},
+				{
+					"name": "_dummy",
+					"type": "boolean",
+					"nullable": true
+				}
+			],
+			"constraints": [
+				{
+					"kind": "foreign_key",
+					"parameters": {
+						"fields": ["member_id"],
+						"reference": {
+							"name": "members",
+							"fields": ["id"]
+						}
+					}
+				},
+				{
+					"kind": "unique",
+					"parameters": {
+						"fields": ["member_id","group_name"]
+					}
+				}
+			]
+		},
+		{
+			"name": "admins",
+			"key_field": {
+				"name": "id"
+			},
+			"data_fields": [
+				{
+					"name": "name",
+					"type": "string_short",
+					"nullable": false
+				},
+				{
+					"name": "email_address",
+					"type": "string_medium",
+					"nullable": true
+				},
+				{
+					"name": "password_image",
+					"type": "string_medium",
+					"nullable": false
+				},
+				{
+					"name": "password_fail_count",
+					"type": "integer",
+					"nullable": false
+				}
+			],
+			"constraints": [
+				{
+					"kind": "unique",
+					"parameters": {
+						"fields": ["name"]
+					}
+				}
+			]
+		}
+	]
+}