Elytra not an Armor is a simple addon that allows players to use elytra in the back accessories slot using Novelty addon.

Note

Please note that this addon does not use Minecraft flight mechanics; it only simulates the flight physics to make it look like using elytra. It doesn't same with the basic flight mechanic, but it's similar with some differences.

For Developer

Using this addon as dependencies for your addons can make developers create custom elytra by defining custom tags in the item tags component called "flight:enable_flight" or using a custom scriptevent command to add a player custom tag to trigger flight, or registeringa custom chestplate item to the world but it only registered on the memory so you should registering at the first world loaded or using tick function commands but I doesn't recommended it

Example code:
using item tags component

so the tags you should add is "flight:enable_flight" to make it like elytra

Example:

{
    "format_version": "1.21.30",
    "minecraft:item": {
        "description": {
            "identifier": "test:elytra",
            "menu_category": {
                "category": "equipment"
            }
        },
        "components": {
            "minecraft:icon": "elytra",
            "minecraft:wearable": {
                "protection": 0,
                "slot": "slot.armor.chest"
            },
            "minecraft:durability": {
                "damage_chance": {
                  "min": 20,
                  "max": 100
                },
                "max_durability": 15
            },
            "minecraft:max_stack_size":  1,
            "minecraft:tags": {
                "tags": [
                    "flight:enable_flight"
                ]
            }
        }
    }
}

using commands
command list

/scriptevents ena:register_chestplate <item identifier : string>
this command is to registering item to script

/scriptevents ena:remove_chestplate <item identifier : string>
this command is to remove registered item to script

/scriptevents ena:register_tagchestplate <string>
this command is to registering custom player tag to script

/scriptevents ena:remove_tag <string>
this command is to remove registered custom tag to script

Example:

/scriptevents ena:register_chestplate test:elytra
/scriptevents ena:register_tag flight_tag_test