This information is for the Builtober 2021 event and server.
You will have access to Chisels & Bits, a building and decoration mod. Use a chisel to get bits from blocks. You are able to build pixel by pixel, and create fantastically small decor!
Grab a chisel from the JEI cheat menu or from the creative menu, and left click on a placed block to get bits. You can use /gamemode survival & creative if needed to make bit gathering easier.
Crouch and scroll while holding a chisel to change its mode (planes, lines, 1×1 pixels, etc.). This can be changed in your control settings.
You the signs at spawn to make yourself small and make detailed builds.
Create detailed blocks.
And signs! The limit is endless, so get chiseling!