Wallet
The wallet is on your computer.
Think of bitfucd as a small bank that only you operate. The wallet UI is a window into that program. It can receive coins, send coins, mine, and show your balance. It cannot run “in the cloud” for you.
Open it (the easy way)
Full first-time steps (tools, clone, cmake) are on Get started. After the build:
./scripts/ui/start-mainnet.sh # starts the operator if needed; http://127.0.0.1:8766
Addresses look like fuc1…. Do not copy wallet.dat between computers. Peers: Node. Practice coins are a different page: Testnet.
On that page you can:
Receive
Copy your fuc1… address. Give it to whoever should pay you.
Send
Paste their fuc1… address and an amount in FUC. Confirm. Fees are tiny (about 0.010 bit/vB).
Mine
Mining is a race: ~76 FUC to whoever finds the block, not a 2-minute salary. Rewards need 100 extra blocks before they can be spent.
Backup
Use the backup button. Keep that file offline, like a house key. Losing it can mean losing coins.
Addresses
Public BITFUC addresses start with fuc1. Bitcoin addresses start with bc1. Do not mix them. Amounts in the wallet are in FUC. The dust-sized unit is a bit.
If you see tfuc1 or fucrt1, that is practice, not this wallet. Those instructions: Testnet.
Terminal, if you want it
bitfuc-cli -datadir="$HOME/.bitfuc-main-operator" createwallet miner bitfuc-cli -datadir="$HOME/.bitfuc-main-operator" -rpcwallet=miner getnewaddress bitfuc-cli -datadir="$HOME/.bitfuc-main-operator" -rpcwallet=miner getbalance bitfuc-cli -datadir="$HOME/.bitfuc-main-operator" -rpcwallet=miner sendtoaddress ADDRESS 1.25 bitfuc-cli -datadir="$HOME/.bitfuc-main-operator" -rpcwallet=miner backupwallet /path/on/this/machine/miner-backup.dat
Programs can do the same with JSON: Agents.