Hi guys,

I'm relatively new there and tried to figure out if I could make some profit with mining.
I have a lot of question, I'd be very pleased if you could help me

If I understood well, if I want to make profit by mining bitcoins, the difficulty increases overtime (exponentially) as the common calculation speed increases, which means that the benefits I will make with the hardware I will use will decrease overtime, ie, if I buy a antminer s7 right now, when do you think it will be outdated ? .

Btw, the €/kwh in my country is pretty high actually, like .15€/kwh.
If I want to go for it, my initial investment could reach 5k€.
I have 10Mb/s internet connexion.

With these facts, do you have any advice about what solution I should consider (or none) ?

Regarding hardware, I like open-source and reusable components, is there any other profitable solutions than bitmain antminers / PSU ? Any (relatively) custom/diy based on asic chips ?

Thanks you really much for your help.

_Kaari_