ItemStacks for Valheim lets you massively increase item stack sizes (10x by default) and reduce item weight (0.1x), so you can carry more with the same inventory space. Individual items can override the global multipliers with custom stack size and weight values.
The mod auto-generates a configuration file after you join a world, giving you full control to enable or disable stack and weight changes separately and fine-tune every item ⚙️.
