From the Clash core to community forks
Clash began as a rule-driven proxy core that established its configuration syntax and proxy-group model. After the original project stopped receiving updates, the community continued maintaining compatible forks. mihomo preserves common configuration structures while adding support for the network stack, rule sets, DNS, and protocols. Today’s desktop and mobile clients generally handle the graphical interface, system permissions, subscription management, and update entry points, while the integrated core processes the actual connections.
“Clash client” does not refer to one fixed interface. Clash Plus, Clash Verge Rev, FlClash, Clash Nyanpasu, and ClashX Meta each handle window interaction, tray menus, and platform integration, while mihomo is closer to the underlying execution component. When choosing a client, check the operating system and processor architecture first, then consider whether you need TUN, rule overrides, configuration merging, or LAN sharing.
The configuration file determines connection behavior
Subscription providers typically generate nodes, proxy groups, and rules. The client saves this remote content as a configuration file and passes it to the core for loading. The system proxy only forwards connections from apps that support proxy settings to a local port; TUN mode covers more programs through a virtual interface. Rule mode then determines which proxy group handles each request. An inconsistency at any layer can appear as “the client is connected but nothing loads.”
Troubleshoot by layer: first confirm that the configuration loads successfully, then verify that the proxy group has a usable exit, next check whether the system proxy or TUN is active, and finally inspect rule matches in the connection log. Switching every option at once only adds variables. Error types, request targets, and policy names in the log are more informative than simply observing toggle states.