HACS integrations now showing up

Hello everyone newbie here,
I am trying to download Sonoff/Lan integration via HACS but when i complete the download and restart the system, integration not showing up on the “Add integration” section. I can find the sonoff folder in custom_components. I dont know how can I fix that. Could u help me?

What do the repo instructions say? Some HACS Integrations then need to be installed from the normal Integration installation screen.

It says you can install via hacs or manually

I looked and t appears you cannot set it up via the WebUI but must use text configuration.

I see, so if I want the add device I have to do this on congfigration text file right ?

Just follow their config examples. That is all I know.

thank u very much