Proficient knowledge of working with command lines.
A minimum of roughly 0.01 BCNA to submit your validator to the network (create-validator TX)
Within the BitCanna network, a maximum amount of 100 validators can be actively signing blocks and therefore earn rewards. These validators are chosen based on their voting power. The 100 validators with the most voting power will be able to earn rewards. So in other words, you will most likely need a decent amount of delegations or self-delegated stake.
Linux VPS with 4GB RAM, 2 Cores, 20 GB for testnet
Linux VPS with 8GB RAM, 4 cores, 80 GB per year for Mainnet (the more resources the better)