serversync-3.1.0.jar is a release file of the Minecraft resource pack FA_Flowers for Forge, made for Minecraft 1.16-Snapshot, 1.9.4, 1.14.4, 1.10.2, 1.15.2, 1.7.10, 1.11.2, 1.12.2, 1.8.9, 1.13.2. It was published on March 16, 2020 and is 0.4 MB in size. For the full description, screenshots and every other version, visit the FA_Flowers resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.
