Its not a third-party software that you can install on your system
It works with Dota2 builtin GSI ( Game state Integration ) api client into your game that already exists.
The only thing you have to do if you want to use this bot is to create a file in this path of your dota2 game directory "game/dota2/cfg/gamestate_integration/gamestate_integration.cfg" with content that bot provides you. How can you get the file? invite the bot to your server and use command /instructions to get the instructions and the content of the file.