--- title: Server components description: The MixOS components in the server install profile, generated from their declared profiles. generated: by docs/_build/gen-site.mix from tools/component_index.mix --json; do not edit --- # Server components The components a MixOS server installs, generated from each component's declared install profiles. A component in more than one profile is listed on each page. Every component, with its kind and source, is in the [component index](components.md); see also the [desktop](desktop.md) list. This page describes the current `main` branch of MixOS. ## Core components On every MixOS system. - [mixos-mcp](../mixos-mcp/README.md) (cli): MCP stdio access to the native MixOS Bus. - [monitord](../monitord/README.md) (service): How monitord samples a host's CPU, memory, disks, network and processes, keeps history in memory and SQLite, and answers read verbs on the Bus, so any node's load can be read from anywhere on the… ## Server components - [dnsd](../dnsd/README.md) (service): authoritative mesh DNS for the zones in zones.mix - [maild](../maild/README.md) (service): JMAP, SMTP, IMAP and DAV mail service - [toolsd](../toolsd/README.md) (service): Runs the tools webd's admin panel queues (whois, dig, traceroute, shwho) as an unprivileged drain, outside webd's sandbox. - [webd](../webd/README.md) (service): Virtual hosts, CMS routes, embedded Mix handlers and ACME for the MixOS web service. ## Unclassified Apps, services and command-line components that do not declare install profiles yet. They are listed on both this page and the desktop page until they do. - [backdrop](../backdrop/README.md) (app): The MixOS desktop background — drawn by its own program on the compositor's background layer, on every output, at native and fractional scale. - [blobd](../blobd/README.md) (service): The node blob store: content-addressed bytes kept in mds, with owner pins, quotas and garbage collection. The MixOS port of blobd, with the store, the Bus citizen, the byte lane and the cross-node… - [bridged](../bridged/README.md) (service): How bridged puts an external application with a line-delimited JSON control channel on the Bus, one instance per application, and what that exposes. - [busviewer](../busviewer/README.md) (app): BusViewer is the MixOS desktop app that lists the services and verbs on this node's Bus, shows each verb's description and the mesh peers, and calls one verb once with a JSON body. - [ced](../ced/README.md) (app): The MixOS Editor, a desktop text editor over the edit Bus service, where people and agents edit the same document at once and see each other's carets, selections and changes live. - [compd](../compd/README.md) (service): The MixOS Wayland compositor, which owns scanout, rendering, input and capture, and serves the comp Bus service with its workspaces, verbs, topics and props tree. - [dopus](../dopus/README.md) (app): MixOS's twin-pane file manager — two folder trees side by side, Places and Properties sidebars, drag and drop between panes, menus and keys for every action, and a Bus surface for agents that reads… - [editd](../editd/README.md) (service): The edit service, which holds shared text buffers that people and agents edit together, with revision checks, per-origin undo, anchors, atomic save, external-change detection and recovery. - [email](../email/README.md) (app) - [hostd](../hostd/README.md) (service): How hostd answers questions about the host and carries out privileged host changes through closed, typed verbs behind standing grants, receipts and rollback, so agents never need sudo. - [inputd](../inputd/README.md) (service): How inputd turns keys into Bus verbs below the compositor, keeps the user keys for the person, and holds its keyboard grab only while its own VT is active. - [mesh-sign](../mesh-sign/README.md) (cli): Signs and verifies the mesh inventory, the trust root of a MixOS mesh. - [mix-shell](../mix-shell/README.md) (cli): The Mix shell library, holding the interactive line editor, the command classifier, the native-session bootstrap and the Bus citizen runtime that the mix binary runs. - [mixtrayd](../mixtrayd/README.md) (service) - [noded](../noded/README.md) (service): The MixOS Bus broker, which handles service registration, discovery, routing, subscriptions, authenticated local session grants and mesh peering between nodes. - [notifyd](../notifyd/README.md) (service): How notifyd keeps the desk's notifications, shows them as toasts and in the Notifications page, and tells an agent or app which button the human pressed. - [portald](../portald/README.md) (service): How portald serves the XDG Settings and ScreenCast portals on the session bus, where the appearance values and screen frames come from, and how applications and agents use them. - [prefs](../prefs/README.md) (app): MixOS's preferences window — a sidebar of editors: Applications follows, installs, updates, rolls back and removes upstream releases; Appearance sets the session's colour scheme, style, mode,… - [releasesd](../releasesd/README.md) (service): How releasesd follows upstream application releases on GitHub and installs their Linux builds per user, verified, with rollback, from the command line or the Bus. - [screenshot](../screenshot/README.md) (app): MixOS's screenshot app — Print Screen for a region, Shift+Print for the screen, Alt+Print for a window; arrows, boxes, pens, highlighter, text, numbered markers, crop and redaction that stay… - [settingsd](../settingsd/README.md) (service): The headless desktop settings authority, the one writer for a session profile's settings, with durable receipts and retained change publication on the Bus. - [system](../system/README.md) (cli): The system package builds the mix shell executable with optional noded, monitord, maild, webd and dnsd personalities selected by the name it is started under. - [term](../term/README.md) (app): The MixOS terminal, with tabs, split panes and a GPU-drawn grid, driven by the session settings and fully scriptable over the Bus.