Know the difference between the client, core, and configuration
In the Clash ecosystem, GUI clients manage subscriptions, proxy selection, and system integration; the core handles protocol connections, DNS, and rule matching; and the configuration defines how nodes, proxy groups, and rules fit together. An app's name doesn't necessarily tell you which core it uses. Whether a configuration can be migrated depends on the target core's support for its fields and protocols, as well as the client's override mechanism. The same file extension alone doesn't guarantee compatibility.
mihomo follows the technical lineage of Clash Meta and is a widely used open-source core in the Clash ecosystem. Older articles may refer to Clash, Clash Meta, or current client names interchangeably, so check the specific project when following instructions. Open source doesn't mean every client has the same interface or defaults. When troubleshooting, note the client name, platform, and actual core version to avoid applying steps that don't fit your setup.
Explore the implementation and changes in the public repository
mihomo is released under the GPL-3.0 license. Its source code, commit history, and issue discussions are available in the public repository. Release notes can help you identify changes to configuration fields, protocol support, or network behavior. Star counts, download numbers, and latency figures aren't measures of connection quality: your experience also depends on the server, network path, and local settings. Public source code offers a way to review and trace the implementation, not a guarantee about any particular connection.
Most users don't need to compile the core. If you use a GUI client, follow its update instructions and make sure the bundled core remains compatible with your configuration. Replacing the core manually can cause permission, path, or interface compatibility issues, so it's best left to users who can restore their setup themselves. For server deployments, define the working directory, log location, and startup arguments; desktop client buttons don't translate directly to background services.