# Deploy on SVM

This is a brief tutorial on how to use SVM on the current Lumio on Solana devnet. For EVM and Move VM, you can refer to the tutorials from the Lumio on Optimism testnet, but be sure to use the correct RPC and faucet RPC endpoints.

### Config

* Solana CLI required.

Configure RPC URL:

```bash
solana config set --url https://svm.devnet.lumio.io
```

If you need a new key:

```bash
solana-keygen new -o ./keypair.json
```

### Faucet

Get some SOL:

```bash
solana airdrop 1
```

## Create Token

```bash
# Install 
cargo install spl-token-cli

# Create token
spl-token create-token
```

After you got token address:

```bash
# Check supply
spl-token supply <address>

# Create an account to hold balance
spl-token create-account <address>

# Check balance
spl-token balance <address>

# Mint some
spl-token mint <address> <amount>

# Check supply again
spl-token supply <address>
```

## Create a program

Be sure CLI is configured and account funded.

Create a new project:

```bash
cargo init hello_world --lib
cd hello_world
```

Add deps:

```bash
cargo add solana-program
```

Open `Cargo.toml` and add the following:

```toml
[lib]
name = "hello_world"
crate-type = ["cdylib", "lib"]
```

Replace src/lib.rs with the following code:

```rust
use solana_program::{
    account_info::AccountInfo,
    entrypoint,
    entrypoint::ProgramResult,
    pubkey::Pubkey,
    msg,
};

// declare and export the program's entrypoint
entrypoint!(process_instruction);
 
// program entrypoint's implementation
pub fn process_instruction(
    program_id: &Pubkey,
    accounts: &[AccountInfo],
    instruction_data: &[u8]
) -> ProgramResult {
    // log a message to the blockchain
    msg!("Hello, world!");
 
    // gracefully exit the program
    Ok(())
}

```

Build:

```bash
cargo build-bpf
```

Deploy:

```bash
solana program deploy ./target/deploy/hello_world.so
```


---

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