Don's Old Church Slavonic (+ Font) is a release file of the Minecraft resource pack Don's Old Church Slavonic, made for Minecraft 1.20.2, 1.21, 1.20.5, 1.20.3, 1.20.1, 1.20, 1.20.6, 1.20.4, 1.21.1. It was published on October 18, 2024 and is 0.3 MB in size. For the full description, screenshots and every other version, visit the Don's Old Church Slavonic resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.