BIW-23t01a is a beta file of the Minecraft mod BIW (Development in progress again) for Forge, made for Minecraft 1.16.5. It was published on July 12, 2023 and is 3.7 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the BIW (Development in progress again) mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.