Issue with limited channels of the real-time

I need to establish a real-time connection directly between the server and the client using my own channel. Is there a way to accomplish this? I’m asking because I need to send numerous chunks of data in real-time (note: without writing it to the database). How can I achieve this?

You mean not going throught the databas, but sending the data directly to the user ?

Yes, exactly.
A real-time connection directly between the server and the client without going through the database.

Currently it's not possible unfortunately

Can I use a custom solution like WebSocket or something else?

You could probably build something in a Function.

Will Appwrite 1.5 include the feature of establishing a real-time connection directly between the server and the client, bypassing the database? Should I wait for this update or proceed with a custom solution?

I think for now you should go ahead with the custom solution and open a GitHub issue adding this as a feature request