pulsedeck 0.1.7

A cyber-synthwave internet radio player and smart tape recorder for your terminal
pulsedeck-0.1.7 is not a library.

✦ PulseDeck ✦

A cyber-synthwave internet radio player for your terminal.

Stream any radio station on Earth. Record tracks automatically. Never leave the command line.

Crates.io License: MIT Built with Rust Platform: Windows | Linux | macOS CI

PulseDeck — Cyber-Deck TUI Interface

What is PulseDeck?

PulseDeck is a terminal internet radio player with a retrowave soul, built in Rust. It works like any radio — tune in, listen, discover — but it lives entirely in your terminal, starts instantly, and uses a few megabytes of RAM.

It ships pre-loaded with handpicked synthwave, chiptune, and cyberpunk stations so it sounds great from the first keypress. But you can search, save, and play any public internet radio station in the world.

Think of it as: VLC for internet radio, but it fits in your terminal and records tracks into named folders automatically.

PulseDeck was formerly named DriftFM. The project was renamed to avoid confusion with existing and historical radio-related uses of the old name. Existing DriftFM config is copied into the new PulseDeck config directory on first launch.

What makes it different?

Most TUI radio players just wrap ffplay. PulseDeck is purpose-built from scratch in Rust with features you'd otherwise only find in native desktop apps:

  • 📡 Search 30,000+ stations from the global radio-browser.info catalog — by name, tag, or country, with mirror failover for upstream outages
  • 📼 Automatic track recording — press r and it captures tracks as separate files, named Artist - Title.mp3, tagged with ID3 metadata, sorted into genre subfolders
  • 🧹 Smart ad filtering — DJ speech, news breaks, and commercial spots are detected and silently discarded. Only real music is kept.
  • 🔊 Smooth tuning transitions — switching stations fades out the current stream and fades in the new one, like turning an analog dial
  • 🎨 5 built-in themes — Retrowave (default), plus all 4 Catppuccin flavors (Mocha, Macchiato, Frappé, Latte), verified pixel-perfect against the official spec. Every UI element — spectrum gradients, recording indicators, search bar, favorite stars, footer chips, list metadata, and help overlay — routes through the 13-role semantic palette. Switch live in settings.
  • 🎛️ Three-Way Bento Dashboard Layout — press b to cycle between standard split panels, closed Bento (maximizing station list), and full-screen ambient cassette deck. Full-deck mode keeps the stable cassette design and adds a framed signal screen with a themed status strip.
  • 📊 Deck visualizers — press v to cycle between a calibrated RTA Spectrum, Real Oscilloscope, and Simulated Oscilloscope. The RTA is tuned to avoid artificial final-treble spikes, preserve crisp treble texture with soft-knee dynamics, keep bars readable, and show a subtle tuning pulse while streams connect.
  • 💾 Favorites & history — your stations are remembered between sessions, the station list shows compact country/bitrate metadata, and the last-played station can auto-resume on launch
  • 🔔 Desktop notifications — a silent system notification shows the current track when a new song starts
  • 🎛️ Resilient streaming — a circular buffer absorbs network hiccups, with adaptive EWMA buffer timing that stays calmer on VBR streams and bursty networks

Installation

Prerequisites: Rust & Cargo (1.75+)

On Linux, also install ALSA dev headers first:

sudo apt-get install libasound2-dev   # Debian/Ubuntu
sudo dnf install alsa-lib-devel       # Fedora

From crates.io (recommended)

cargo install pulsedeck

From source

git clone https://github.com/milgaj84/pulsedeck.git
cd pulsedeck
cargo run --release

That's it. No config files to write. No API keys. Stations are pre-loaded and the player starts immediately.

How to use it

PulseDeck is keyboard-driven. Press h at any time to see the full control reference.

Core shortcuts

Key Where What it does
↑ / ↓ or j / k Library or search Move through the visible list
Enter Library Play the highlighted saved station
Enter Search Save the highlighted result to your Library, then play it
Space Search Audition the highlighted result without saving it
Ctrl+Enter Search Audition too, when your terminal reports the key combo
/ Anywhere in normal mode Open worldwide station search
Esc Search or overlay Leave search / close overlay
f Library only Remove the highlighted station from your Library
u Library only Undo the most recent station removal
Tab / Shift+Tab Library Switch genre categories
Space Playback Pause / resume
s Playback Stop playback
+ / - Playback Volume up / down with fine low-volume and faster high-volume steps
m Playback Mute / unmute
Ctrl+- / Alt+- Search Volume down without leaving search
Ctrl+= / Ctrl++ / Alt+= / Alt++ Search Volume up without leaving search
Ctrl+m / Alt+m Search Mute / unmute without leaving search
r Playback Start / stop recording; PulseDeck shows footer status when recording is armed, active, stopped, or unavailable
b View Cycle Split / Library / Deck layout
p View Switch Tape Deck / Tape History
v View Cycle RTA Spectrum / Real Osc / Sim Osc
, App Open settings
h / ? App Show / hide help
q App Quit

Enter is the search commit action: it adds the highlighted search result to your saved Library and starts playback. Space auditions the highlighted result without saving it, so you can sample stations before committing them to library.json.

While in search, plain printable characters continue to edit the query. Use the Ctrl/Alt audio shortcuts for volume and mute if the current stream needs adjustment without abandoning the active search.

Workflow

Finding and adding a new station:

  1. Press / to open search, then type a genre, city, country, or station name. Search starts after 2+ characters and waits briefly while you type, so quick typing does not send a request for every letter.
  2. Use ↑ / ↓ to highlight a result.
  3. Press Space to audition the highlighted station without saving it. You stay in search mode and can keep browsing.
  4. Press Enter to save that result to your Library and start playing it immediately. It will be available next time you launch PulseDeck.
  5. Press Esc instead to leave search without adding anything.

Search results show saved stations with a star and include compact genre/country/bitrate metadata. The search bar shows clear states while you work: Type 2+ chars to search, an animated query-initializing indicator, searching ..., result counts, stale-response discard notices, No results, ★ Saved to library, or a compact Search failed: ... error. Older search responses are ignored if you have already typed a newer query, and the discarded query is surfaced in the search bar.

Managing your library:

  • Your Library is the saved station list shown on launch.
  • Rows show the selected station, currently playing station, country, and bitrate without overflowing long names.
  • To remove a saved station, highlight it in the Library and press f.
  • After removal, press u to restore removed stations in reverse order. PulseDeck keeps a bounded history of the 10 most recent removals.
  • Switch between genre categories with Tab / Shift+Tab; when the currently playing station is visible in the new category, the cursor follows it instead of jumping to the top.

Using the cassette deck:

  • Press b to cycle between split view, library-only view, and full-deck Bento mode.
  • Press v to cycle the deck signal display between RTA Spectrum, Real Oscilloscope, and Simulated Oscilloscope.
  • In RTA Spectrum mode, the signal screen shows a subtle tuning pulse during connection handshakes, so slow streams look active instead of blank.
  • During stop or station changes, the deck stays visually active while the audio fade-out completes.
  • Critical stream errors are mirrored inside help and settings overlays, so connection failures remain visible even when a modal is open.
  • Press p to switch between the live Tape Deck and Tape History page.
  • Watch the footer chips for playback state, volume, layout, scope mode, and recording state.

Coming back tomorrow:

  • PulseDeck remembers your library between sessions.
  • PulseDeck also remembers your volume, mute state, layout mode, and visualizer mode in a separate ui-state.json file.
  • Settings such as auto-resume, audio output, recording folder, recording filters, and theme are saved automatically.
  • Enable Auto-resume last station in settings (,) and it starts playing where you left off automatically.

Recording

Press r while a station is playing. PulseDeck will:

  1. Show Recording will start at next track boundary in the footer
  2. Wait for the next song boundary (so you never capture a partial intro)
  3. Record each track to its own file in the native stream format — recordings/Synthwave/Perturbator - Venger.mp3 or .aac depending on what the station broadcasts. No transcoding, no quality loss.
  4. Embed the correct ID3 tags (artist, title, station name as album)
  5. Discard anything under 90 seconds — DJ speech, ads, station IDs are swept automatically
  6. Stop cleanly when you press r again, with Recording stopped shown in the footer

If you press r before playback starts, PulseDeck shows Start playback before recording instead of failing silently.

The minimum song duration and whether to keep short clips are configurable in the settings (,).

Settings

Press , to open the settings panel. Current options:

  • Desktop notifications — show track info when a song changes. On WSL, PulseDeck falls back to a Windows notification balloon if the normal Linux notification path is unavailable.
  • Auto-resume last station on startup — picks up where you left off.
  • Audio Output — choose Default or a detected output device such as pulse, pipewire, speakers, or Bluetooth headphones exposed by the audio backend. If only pulse or pipewire appears, select that in PulseDeck and route it to your headphones in PipeWire/PulseAudio with wpctl, pavucontrol, or your desktop sound settings.
  • Tape capture folder — cycle between preset recording directories.
  • Keep partial snippets & ads — whether short clips and non-music segments are kept or silently deleted.
  • Min song duration — threshold for auto-discarding short recordings. Space cycles common presets including 45s and 300s; Left/Right or h/l/a/d nudge by 5 seconds within the 15s–600s range. Only active when Keep partial snippets & ads is OFF.
  • Theme — cycle between Retrowave, Catppuccin Mocha, Macchiato, Frappé, and Latte.

Use ↑ / ↓ or j / k to move between settings. Use Space, Right, l, or d to step values forward; use Left, h, or a to step values backward. Native ALSA/JACK probe diagnostics are suppressed during audio device discovery so backend chatter does not overwrite the TUI. Settings are saved automatically to a JSON file in your config directory.

Migration from DriftFM

PulseDeck automatically copies existing DriftFM config files into the new config directory on first launch:

Old path New path
~/.config/driftfm/library.json ~/.config/pulsedeck/library.json
~/.config/driftfm/ui-state.json ~/.config/pulsedeck/ui-state.json

The old ~/.config/driftfm directory is left untouched as a backup. Future saves go to ~/.config/pulsedeck.

Platform Support

Platform Status
Windows ✅ Full support (native WASAPI audio)
Linux ✅ Full support (ALSA/PulseAudio/PipeWire via CPAL/Rodio, with selectable outputs)
macOS ✅ Full support (CoreAudio)
WSL ✅ Supported with Windows notification fallback

Code Quality

PulseDeck's CI checks:

  • Rust formatting with cargo fmt --check
  • Clippy across all targets and features with warnings treated as errors
  • Tests across all targets and features
  • Release build verification
  • RustSec dependency audit with cargo audit

The codebase also keeps UI colors routed through the semantic palette in theme.rs, isolates blocking audio work from the TUI event loop, and keeps app/audio architecture notes in docs/.

Built with

All native Rust — no ffmpeg, no Python, no Electron. A single self-contained binary.

  • Ratatui — Terminal UI framework
  • Rodio + CPAL + Symphonia — Audio output selection, decoding, and playback (native, no ffmpeg dependency)
  • Tokio — Async runtime for API search
  • reqwest — HTTP streaming with ICY metadata support
  • id3 — ID3 tag injection into recorded files

License

MIT — see LICENSE for details.