# Tech Stack

## Blockchain

| Component                | Technology | Version | Purpose                                    |
| ------------------------ | ---------- | ------- | ------------------------------------------ |
| Chain                    | Solana     | —       | Sub-second finality, low fees, PDA support |
| Smart Contract Framework | Anchor     | 0.31.1  | Type-safe development, account validation  |
| Contract Language        | Rust       | Stable  | On-chain program logic                     |
| Runtime                  | Solana BPF | —       | Berkeley Packet Filter bytecode execution  |

## Cryptography

| Component          | Technology                      | Purpose                                     |
| ------------------ | ------------------------------- | ------------------------------------------- |
| Commitment Scheme  | SHA-256                         | Commit-reveal for answer integrity          |
| Account Derivation | PDA (Program Derived Addresses) | Deterministic, trustless account management |

## Development Tools

| Component      | Technology        | Version       |
| -------------- | ----------------- | ------------- |
| Rust Toolchain | rustup            | Latest stable |
| Solana CLI     | Solana Tool Suite | v2.0+         |
| Anchor CLI     | Anchor            | v0.31.1       |
| Node.js        | Node              | v18+          |

## Testing

| Component       | Technology            | Purpose                        |
| --------------- | --------------------- | ------------------------------ |
| Test Runner     | ts-mocha              | TypeScript test execution      |
| Test Framework  | Mocha                 | Test organization              |
| Assertions      | Chai                  | Expect-style assertions        |
| Local Validator | solana-test-validator | Local Solana network for tests |
| Formatter       | Prettier 2.6.2        | Code style consistency         |

## AI Services (Planned)

| Component     | Technology          | Purpose                                  |
| ------------- | ------------------- | ---------------------------------------- |
| LLM Hosting   | Phala Network (TEE) | Hardware-attested AI inference           |
| TEE Framework | Intel TDX + dstack  | Confidential compute, remote attestation |

## Frontend (Planned)

| Component          | Technology            | Purpose                        |
| ------------------ | --------------------- | ------------------------------ |
| Wallet Integration | Solana Wallet Adapter | Connect player wallets         |
| Client Library     | @coral-xyz/anchor     | TypeScript program interaction |