Well I made a mistake. I forgot to mention that when you are making the config files MAKE SURE You add the following code for each application
This makes it so when someone sends @everyone or @here in say for example slack It will not send that message to the other applications. The reason why we would do this is we cannot disable the permission for bots/webhooks to tag @everyone or @here so users could bypass these permissions to spam tag everyone. I learnt this the hard way when I tested it on slack and I forgot that if it actually went through I would be tagging 30+ people.
If you want to learn more about making advanced bridges you can read the config file on them Here