You can download Inventory Totem on CurseForge and Modrinth:
  CurseForge:   https://curseforge.com/minecraft/mc-mods/inventory-totem
  Modrinth:      https://modrinth.com/mod/inventory-totem
To keep a better overview of all mods, the issue tracker is located in a separate repository.
  For issues, ideas, suggestions or anything else, please follow this link:
    -> Issue Tracker
Because of the way mod loader files are bundled into one jar, some extra information is needed to do a PR.
  A wiki page entry about it is available here:
    -> Pull Request Information
Requires the library mod Collective.
   This mod is part of The Vanilla Experience modpack and Serilum's Quality of Life Bundle mod.
Inventory Totem is a minimalistic mod which makes the totem of undying effect work when the totem exists in the player's inventory. By default in the vanilla game you have to hold the totem in your hand, now you just have to make sure to bring it with you somewhere in your inventory. The effect is exactly the same.
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You may freely use this mod in any modpack, as long as the download remains hosted within the CurseForge or Modrinth ecosystem.
Serilum.com contains an overview and more information on all mods available.
Comments are disabled as I'm unable to keep track of all the separate pages on each mod.
For issues, ideas, suggestions or anything else there is the Github repo. Thanks!