How to install Horde webmail in Directadmin today

Hello

First of all I am sorry for my poor english, I am from Poland so it is not my native language.

I would like to install Horde Webmail on my Directadmin serwer but I don't know how to do that and if that is still possible? I tried various how-to even from this forum but the threads are very old and those automated solutions aren't working anymore, can anyone help me with this?