This github page holds the code for Unity plugin Realtime-CSG https://assetstore.unity.com/packages/tools/modeling/realtime-csg-69542
Discord server: https://discord.gg/BK5gt8R
Project website: https://www.realtimecsg.com/
How to install: Copy the Plugins directory in your Assets folder
If you use the plugin, please let us know, we'd love to see what you've done with it!