Help with setting up guacamole


I am new user of a synology device. I have installed from the package center MariaDb, Phpmyadmin, and container manager. I have for the life of me trying to get Guacamole installed and working from the official repo. I am very gree with all of the and every help article and YouTube video are quite out of date. Is there anyone who can give me step by step a method to get this working on a synology nas running dsm 7.2?