External HD on Apple TV 1 + OSMC?

I have finally installed OSMC on my old Apple TV1, successfully. It works fine and fast.
Up to now I had been working with a Mac Mini + Kodi (Mac died) and all my media on external HD (4Tb).
How can I access from my OSMC Apple TV 1 my media external HD ?

PD I got everything working: external HFS formatted HD (4Tb) working straight and flawless. I’m happy with it.
Anyone knows if it will be the same with Vero2 - I mean supporint external HFS HD ?

Yes, the Vero 2 supports external media the same. If it works on AppleTV, it will work on Vero 2.