Start with a supported toolchain
Pin compiler and library versions, review their release notes, and confirm that the FEM environment supports the instructions and precompiles your contracts use.
FEM / DEVELOPER NOTES / CONTRACTS
Build carefully. Test first.
Solidity and familiar EVM development tools can provide a starting point for EVM-compatible networks. Test the exact compiler, runtime features, and standards against FEM's published specification before deployment.
Test the behavior, not the label
Write unit and integration tests for success paths, reverts, access control, and edge cases. Compatibility claims do not replace testing on a verified FEM development network.
Review security separately
Use established secure-development practices and independent review where appropriate. A successful compile is not a security audit.