Litematica is a client-side Minecraft mod using LiteLoader. It is more or less a re-creation of or a substitute for Schematica, for players who don't want to have Forge installed. For compiled builds (= downloads), see https://www.curseforge.com/minecraft/mc-mods/litematica/files/all
- Clone the repository
- Open a command prompt/terminal to the repository directory
- run 'gradlew build'
- The built jar file will be in build/libs/