Idea for secure wallet (you tell me)

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self.Bitcoin1m ago
Okay so hear me out, yesterday night i was trying to sleep and suddenly I taught: What if I buy a raspberry pi (a non expensive one, so not the pi 4), I install a linux and I use it as a desktop offline cold wallet? The only internet connection that it would need is the one to install a desktop wallet and that’s all. You can then turn it off and just deposit your btc. You can check your balance directly from an other pc, from the blockchain. Is that a good idea? What do you guys think? I am quite a noob on this things so if you find something won’t work tell me😁😁