Tamaran Stout 8.5%

I had a beer called "Tamaran" stout 8.5 % at Oasis Beer in Las Palmas, Gran Canaria. The staff were not able to tell me much about the the beer/the brewery. What I was told was: local brewery, no longer in production, two brothers, maybe a collaboration (?) Not much.... Anyone who knows more?

Absolutely no online info. Was it on tap or bottled? Homebrew maybe?

On tap, and actually a good stout. Or, Imperial stout...