No Duping

This data pack aims to disable the following duplication glitches: rails; carpets; string; tnt; gravity blocks; tripwire hooks. It does this by deleting the duplicated item or entity after it has been created in the general set-ups.

Notes: dupes are enabled by default, so disable them in the settings.

Hide the “world warning” when enabling this datapack
Setup / settings (1.21.6+) for server owners or single players
The configuration is now handled through an in-game dialog menu.

You can open it in either of these ways:

/trigger no_dupe_tutorial
From the pause menu (in-game)
The current settings can still be viewed with:

/trigger no_dupe_tell_settings
Older versions (previous setup via commands)
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Keep in mind:

Ensure you're familiar with installing data packs.
Verify compatibility with your Minecraft version.
Terms of use:

Do:

Use and modify the data pack for private use.
Credit me (thatcandle03803) as the creator when using the data pack in public, such as in video showcases, or when editing and redistributing the original material.
Don't:

Redistribute the data pack for commercial purposes.
Under CC-BY-NC-SA 4.0 license