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

Fabric Loader ≥ 0.4.0 (No Fabric API required)
Minecraft 1.14 – 1.21.x
Requires Java 8 or newer
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

No gallery available for this project.

Version	Minecraft	Loader	Download
YOSBS v1.0.0 1.0.0	1.14, 1.14.1, 1.14.2, 1.14.3, 1.14.4, 1.15, 1.15.1, 1.15.2, 1.16, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5, 1.17, 1.17.1, 1.18, 1.18.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.10, 1.21.11, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 26.1, 26.1.1, 26.1.2, 26.2	fabric	Download