> ## Documentation Index > Fetch the complete documentation index at: https://docs.roam.network/llms.txt > Use this file to discover all available pages before exploring further. # Technical Architecture > Dual-chain strategy, interoperability, and smart contract security ## Dual-Chain Strategy Roam deploys across two chains, each chosen for a specific strategic purpose: **Primary Liquidity Layer** The \$XRO token launches as a standard ERC-20 on Base. This provides deep liquidity, low transaction costs, seamless DeFi integration, and access to the broadest possible retail and institutional audience. **DePIN Infrastructure Layer** Roam also deploys on peaq, the leading Layer-1 purpose-built for DePIN. This enables access to peaq's machine-specific modular functions (machine IDs, role-based access control) and connects Roam to the largest dedicated DePIN investor and builder community. ## Interoperability \$XRO is fully bridgeable between Base and peaq at TGE through native bridge infrastructure. Users and applications can operate on whichever chain best suits their needs: DeFi and trading on Base, DePIN operations on peaq. ## Smart Contract Security * **Audits:** All token contracts, staking modules, and governance contracts will undergo rigorous audits by tier-1 security firms prior to their launch. Audit reports will be published publicly. * **Multi-sig controls:** Contracts are deployed with multi-signature governance to prevent unauthorized upgrades or treasury movements. * **Upgradeability:** Contracts are upgradeable to allow for future improvements, secured by industry-standard protections including time-locked upgrade windows and multi-sig approval requirements. No upgrade can execute without passing mandatory delay periods, ensuring the community has visibility into any proposed changes before they take effect.