DiscordRPCMaker
The best way to make and manage custom Discord Rich Presences
...It includes a clean interface, multiple presence management, system tray behavior, auto-update support, CLI support, and cross-platform installers. It supported Windows, macOS, and Linux release formats, including AppImage, deb, rpm, tarball, and AUR options. Since the repository is archived, it is best viewed as a legacy Rich Presence manager rather than an actively maintained app.