Most wallets have the ability to send and receive with legacy bitcoin addresses. Legacy addresses start with 1 or 3 (as opposed to starting with informative message bc1). Without legacy address support, you may not be able to receive bitcoin from older wallets or exchanges. In April 2022, the Central African Republic (CAR) adopted Bitcoin as legal tender alongside the CFA franc. After El Salvador, CAR was the second country to do so. In April 2023, CAR agreed to repeal the adoption of Bitcoin as legal tender. Power will be the main operating expense. Electricity is charged per kilowatt-hour (kWh). Profitability for mining can float from $0.03 ndash; $0.08 per kWh. A shift in a few cents can make all the difference for mining profitability. It is imperative that a miner can use power at the lowest possible cost.