initial commit of packs

src/nether_coordinate_scale_1to1_1.0.0_mc1.21/data/minecraft/advancement/nether_coordinate_scale.json

@@ -0,0 +1,22 @@
+{
+  "display": {
+    "icon": {
+      "id": "minecraft:netherrack"
+    },
+    "title": "Nether Coordinate Scale 1:1",
+    "description": "1 to 1, Nether to Overworld coordinates.",
+    "show_toast": false,
+    "announce_to_chat": false
+  },
+  "parent": "minecraft:root",
+  "criteria": {
+    "tick": {
+      "trigger": "minecraft:tick"
+    }
+  },
+  "requirements": [
+    [
+      "tick"
+    ]
+  ]
+}

src/nether_coordinate_scale_1to1_1.0.0_mc1.21/data/minecraft/dimension_type/the_nether.json

@@ -0,0 +1,20 @@
+{
+  "ultrawarm": true,
+  "natural": false,
+  "piglin_safe": true,
+  "respawn_anchor_works": true,
+  "bed_works": false,
+  "has_raids": false,
+  "has_skylight": false,
+  "has_ceiling": true,
+  "coordinate_scale": 1,
+  "ambient_light": 0.1,
+  "fixed_time": 18000,
+  "logical_height": 128,
+  "effects": "minecraft:the_nether",
+  "infiniburn": "#minecraft:infiniburn_nether",
+  "min_y": 0,
+  "height": 256,
+  "monster_spawn_light_level": 7,
+  "monster_spawn_block_light_limit": 15
+}

src/nether_coordinate_scale_1to1_1.0.0_mc1.21/pack.mcmeta

@@ -0,0 +1,7 @@
+{
+	"pack": {
+		"pack_format": 48,
+		"supported_formats": {"min_inclusive": 48, "max_inclusive": 48},
+		"description": [{"text":"Nether Coordinate Scale 1:1","color":"gold"}]
+	}
+}