# Developers

Everything you need to build on Armchain. If you've built on Ethereum before, the smart contract side is virtually identical. The key difference is how transactions are signed.

| Guide                                      | Description                                                                                           |
| ------------------------------------------ | ----------------------------------------------------------------------------------------------------- |
| [Smart Contracts](/developers/overview.md) | Write, test, and deploy Solidity contracts (same as Ethereum)                                         |
| [Ethers SDK](/developers/overview-1.md)    | The Armchain JavaScript/TypeScript SDK, a drop-in replacement for ethers.js with post-quantum signing |
| [Wallets](/developers/overview-2.md)       | Connect your dApp to the Armchain Wallet, or build your own wallet with PQC support                   |


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