Make something like Discord Rich Presence

Discord just opens a unix domain socket (or multiple, 0-9) at $XDG_RUNTIME_DIR, which apps that have RPC support hook into. each message is a header (opcode as uint32LE + length as uint32LE) followed by a JSON payload. on top of this, Discord on Linux periodically scans /proc for processes and matches them against a database for automatic matching the opcodes are: 0 for handshake, 1 for frame (for setting activity, etc.), 2 for close, 3 for ping, and 4 for pong for maximum compatibility, we probably want to mimic what Discord does with its unix sockets, but this would prevent you from using Fluxer and Discord at the same time here's an example: if this is a desired feature, I can try implementing it