core/

Package buildinfo carries the release version the core was built from.

Package control implements the line-delimited JSON protocol the desktop UI uses to drive the core.

Package dnspick chooses a DNS resolver that actually works on the network the user is sitting on.

Package fallback implements the anti-DPI protocol fallback walk.

Package model holds the types shared across the core: the normalized representation of a proxy server and the pieces of its configuration.

Package nodecheck ranks proxy nodes by what actually works through them, rather than by whether their address accepts a TCP connection.

Package profile defines the profile and server types the UI works with and persists them to disk.

Package routing turns a high-level routing intent (smart/global/direct) into the sing-box "route" and "dns" blocks.

Package singbox builds a complete sing-box configuration (as a map[string]any ready for encoding/json) from a set of normalized nodes plus routing options.

Package subscription parses proxy share links and subscription bodies into the normalized model.Node form consumed by the sing-box config generator.

Package tunguard refuses to bring up a tun when another VPN already owns the machine's default route.

Package zapret drives a bundled zapret installation: the set of DPI-bypass strategies shipped as .bat files around winws.exe.