Investigate the existing extension loading in the libSQL library (likely in src/extension.c or similar). Understand how the server component (e.g., in src/server/) is structured. Look for any existing hooks or configuration for loading plugins. The server will need a configuration option (e.g., command line flag or config file) to specify extension paths and a mechanism to load them at startup. Check the library's extension loading code to reuse or adapt it. Also review any tests for extension loading in the test suite.
