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crabidy

A client/server music player. A headless gRPC server owns the library, the play queue, and audio output; a terminal UI connects to it over localhost (or the network). Media comes from pluggable providers, each mounted as a subtree of one library:

/
├── tidal        Tidal streaming (see tidaldy/README.md)
├── youtube      YouTube search & playlists (see ytdy/README.md)
├── fs           a local music folder (see fsdy/README.md)
├── queues       saved play queues (managed by the server)
├── bookmarks    link snapshots of library subtrees (`w`)
└── captures     downloaded snapshots with local audio (`W`)

Binaries

crabidy-server — the server: providers, queue, playback, gRPC on 0.0.0.0:50051. Also serves the web client at that address (see below).
cbd-tui — the terminal client. Press ? inside for all key bindings.
cbd — both in one process: starts the server, waits until it accepts connections, then runs the TUI. Adopts an already-running server instead of failing on an occupied port.
cbd-web — the browser client (Leptos/WASM), with the same functionality as the TUI. Not run directly: it is built to a bundle and embedded into crabidy-server (see cbd-web/README.md).

Quick start

The toolchain is managed by devenv:

devenv shell          # provides rust, yt-dlp, and friends
cargo run -p cbd      # server + TUI in one process

Or run the halves separately: cargo run -p crabidy-server and, in another terminal, cargo run -p cbd-tui.

Configuration

All configuration lives in ~/.config/crabidy/ (the platform config directory). Every file is optional; missing providers simply do not mount. Files are created/rewritten on first start with their defaults filled in.

File	Component	Documentation
`tidaly.toml`	Tidal	tidaldy/README.md
`ytdy.toml`	YouTube	ytdy/README.md
`fsdy.toml`	local fs	fsdy/README.md
`cbd-tui.toml`	TUI / cbd	below
`crabidy-server.toml`	server	below (never auto-created)

The server-managed folders (queues/, bookmarks/, captures/) also live in ~/.config/crabidy/; they need no configuration and hold plain folders of track files in the format documented in fsdy/README.md.

`cbd-tui.toml`

Configuration of the TUI (and the TUI half of cbd):

# Where to find the server. Default shown.
address = "http://127.0.0.1:50051"

# Credentials, when the server has [auth] configured (see below).
# `user` is the role name; leave both empty against an open server.
# The password is stored in plaintext — keep this file private.
user = ""
password = ""

Every option is also available as a command-line flag (cbd-tui --address ...).

`crabidy-server.toml` — roles and rights

By default the server is open: everyone who can reach the port has full control. Adding an [auth] section turns on HTTP basic auth for every RPC and hands out roles (see architecture/roles-auth.md):

owner — everything (the normal user).
queue-owner — anything on the queue and playback, but no library writes: no bookmarks (w), captures (W), queue saving, renames or deletes.
queue-appender — may browse/search and append tracks to the queue; nothing else.

[auth]
# One PHC hash per role; omit a role to disable it. Generate with:
#   crabidy-server hash-password   (reads the password from stdin)
owner = "$argon2id$v=19$m=19456,t=2,p=1$..."
queue_owner = "$argon2id$..."
queue_appender = "$argon2id$..."

Clients authenticate with the role name as the basic-auth user (see cbd-tui.toml above). A malformed crabidy-server.toml aborts server startup rather than silently running open. Note that the transport is plain HTTP/2: fine on a trusted home network, but anything exposed further needs TLS termination (reverse proxy, VPN) in front.

Using the library

Navigation is vim-style: j/k select, l enters the selected folder, h goes to the parent, Tab switches between library and queue, Enter replaces the queue with the selection. % creates a node where the pane title shows % to add (e.g. a search term), e renames, d deletes. / filters the current pane (library or queue) live as you type — Enter keeps the filter, Esc clears it.

w saves the selection as a bookmark (links; needs the source provider to replay) or, in the queue pane, saves the queue.
W captures the selection: the subtree is mirrored under /captures/<name> with every track's audio downloaded next to its metadata — fully local playback afterwards. Captures are incremental: re-capturing the same name resumes and completes it; tracks whose source cannot be captured are recorded as skipped (red in the UI, skipped by playback). Download captures can take long; progress is shown in the library pane. Inside /captures, d deletes any folder or single track from disk (audio included) after a y/N confirmation.

Press ? for the full binding table.

Web client

crabidy-server serves a browser client with the same functionality as the TUI at its own address (http://<server>:50051/) — same navigation, same keys (j/k/h/l, %, e, d, w, W, queue and playback controls, ? for help), plus clickable equivalents and a light/dark theme toggle. It talks gRPC-web to the same service the TUI uses, so it honors the same [auth] roles (it shows a login form when the server requires credentials).

It is compiled to a WASM bundle and embedded into the server binary, behind the default-on web-ui cargo feature. A plain cargo build needs no WASM toolchain — it embeds a "not built" placeholder page until you build the bundle:

devenv shell -- build-web        # writes cbd-web/dist
cargo build -p crabidy-server    # embeds it

Build the server with --no-default-features for a headless, gRPC-only binary. See cbd-web/README.md for the dev loop and details.

Logs

cbd and cbd-tui log to ~/.local/state/crabidy/ (daily files); crabidy-server logs to stderr. Stream URLs and credentials are redacted from logs by design.

Development

Design documents live in architecture/, per-feature quality gates in quality/, and implementation plans in plan/. See CLAUDE.md / AGENTS.md for the development workflow and coding rules.

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