The article also tells you to use libsodium, which makes safe cryptographic choices. (It's absolutely true that ECC can be as much of a footgun, e.g. non-rando

The article also tells you to use libsodium, which makes safe cryptographic choices. (It's absolutely true that ECC can be as much of a footgun, e.g. non-random-k ECDSA is worse than RSA PKCSv15. But the real takeaway is to use something that's already set for security, like libsodium.)