Your Options Shall Be Saved (YOSBS)

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Your Options Shall Be Saved (YOSBS)

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Preserve player configs when updating modpacks by creating the default config on first launch only and never touching it again afterward

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QoL & Tweaks
Modpack Customization Tool
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Fabric
Minecraft
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CurseForge logo CurseForge Modrinth logo Modrinth

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About

Project Details

Type
Mod
License
GNU Lesser General Public License v3.0 only
Latest Version
YOSBS v1.0.0
Authors
CurseForge
Modrinth

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Modrinth ID

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About

Description

Your Options Shall Be Saved (YOSBS)

Your Options Shall Be Saved (YOSBS) is a lightweight utility mod that lets modpack creators define default configuration files without overwriting player preferences

Updating a modpack often resets custom settings like keybinds or mod configs, because most launchers replace the entire config/ folder

YOSBS solves this by copying any file placed in config/yosbs/ to its proper location only once on first launch — and never again

This gives full control to the pack author:

  • Files inside config/yosbs/ are treated as user-owned: copied once, then left untouched
  • Files inside config/ behave as usual: they will be replaced on each update

That way, you decide which configs should persist, and which should reset

Links

Features

  • Zero-config: just drop the defaults under /config/yosbs/… (or legacy /config/yosbr)
  • Works for any file – options.txt, mod configs, optionsshaders.txt, etc
  • Runs in the pre-launch phase, before Fabric/Forge starts loading the rest of the mods

Compatibility & Installation

  1. Fabric Loader ≥ 0.4.0 (No Fabric API required)
  2. Minecraft 1.14 – 1.21.x
  3. Requires Java 8 or newer
  4. Put the YOSBS jar in mods/ and launch once – the folder /config/yosbs is created automatically (or create it manually)

Usage examples

Want to ship… Do this before first launch
A default options.txt Place your file at /config/yosbs/options.txt
A REI config /config/yosbs/config/roughlyenoughitems/config.json5

Credits

Inspired by the original Your Options Shall Be Respected – YOSBR by shedaniel

My Others Projects

Even Better Enchanted Books

Your Options Shall Be Saved (YOSBS)

Your Options Shall Be Saved (YOSBS) is a lightweight utility mod that lets modpack creators define default configuration files without overwriting player preferences

Updating a modpack often resets custom settings like keybinds or mod configs, because most launchers replace the entire config/ folder

YOSBS solves this by copying any file placed in config/yosbs/ to its proper location only once on first launch — and never again

This gives full control to the pack author:

  • Files inside config/yosbs/ are treated as user-owned: copied once, then left untouched
  • Files inside config/ behave as usual: they will be replaced on each update

That way, you decide which configs should persist, and which should reset

Features

  • Zero-config: just drop the defaults under /config/yosbs/… (or legacy /config/yosbr)
  • Works for any file – options.txt, mod configs, optionsshaders.txt, etc
  • Runs in the pre-launch phase, before Fabric/Forge starts loading the rest of the mods

Compatibility & Installation

  1. Fabric Loader ≥ 0.4.0 (No Fabric API required)
  2. Minecraft 1.14 – 1.21.x
  3. Requires Java 8 or newer
  4. Put the YOSBS jar in mods/ and launch once – the folder /config/yosbs is created automatically (or create it manually)

Usage examples

Want to ship… Do this before first launch
A default options.txt Place your file at /config/yosbs/options.txt
A REI config /config/yosbs/config/roughlyenoughitems/config.json5

Credits

Inspired by the original Your Options Shall Be Respected – YOSBR by shedaniel

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~44,000
Total Downloads
CurseForge
~19,000
Modrinth
~25,000
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CurseForge
Modrinth
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CurseForge
Modrinth
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