How can I make an armorstand indestructible (1.12.2.)?

There are often holograms on servers, I would like to imitate them and use https://haselkern.com/Minecraft-ArmorStand/ for this, but I don't know how I can make it indestructible. Use 1.12.2 on an aternos server. Incidentally, the holograms work with nametags.

Usually plugins like "Holographic Displays" are used for holograms.

There you can then use / holo to create and edit holograms.

This also makes them indestructible

I recommend AST (ArmorStandTool). This is a plugin that allows a user to easily create complex armor stands.

You can find the plugin https://www.spigotmc.org/...ools.2237/

Hooks to Invulnerable then they should be indestructible.