mollusk
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The repo assumed a distro with a system-wide Rust, which NixOS does not provide. This adds a flake devShell carrying the full dependency surface: - Build: rustc/cargo/clippy/rustfmt, pkg-config, clang (pipewire-sys and libspa-sys need a real libclang for bindgen, via LIBCLANG_PATH), cmake (audiopus_sys's vendored-libopus fallback), and git (build.rs stamps PEERSPEAK_GIT_SHORT from `git rev-parse`). - Link: alsa-lib, libopus, pipewire. - dlopen'd at runtime: vulkan-loader, libxkbcommon, wayland and the X11 libs. Nothing links these, so they never land in the binary's rpath and are reachable only through LD_LIBRARY_PATH. Omitting them builds fine and then fails at window creation, which is a confusing way to find out. - The supply-chain gates CI runs (cargo-deny, cargo-audit) plus cargo-deb. These were `cargo install`ed on the CachyOS side, which does not carry over — those binaries link that distro's glibc. It also carries the screen-share tools (GStreamer + plugin search path, pactl, mpv). Those look like they belong only to pixelpass, but tests/screenshare_host_fault.rs starts a REAL pixelpass host, which aborts at its own preflight without them — so they are a dependency of this test suite. They are duplicated from pixelpass's flake rather than imported: the two projects are mutually optional by design, and having one flake consume the other would reintroduce the build-level dependency that rule prevents. nixpkgs is pinned to nixos-26.05, the same channel the hosts run, so the libraries here match the running PipeWire daemon and Vulkan ICD. Verified: 640 lib tests pass, all 4 screenshare_host_fault live gates pass (real audio backend, real network bind, real pixelpass child), fmt clean. Known delta: clippy 1.95.0 (nixpkgs 26.05) flags one collapsible_match in src/widget/selectable_text.rs that clippy 1.97.1 on CachyOS did not.
PeerSpeak
Decentralized, peer-to-peer voice chat — full-mesh, NAT-traversing, with no central server. Built in Rust on iroh (QUIC), PipeWire audio, the Opus codec, and an iced GUI.
Create a room, share the join ticket, and talk. Everyone connects directly to everyone else; relays are only used to punch through NATs when a direct path isn't available.
Screenshots
| Launch screen | In a room |
|---|---|
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| Settings |
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Features
Rooms & sessions
- Create a room → shareable join ticket; join by pasting a ticket.
- Full-mesh multi-peer rooms with live presence.
- Recent-rooms list to hop back into a room someone's still in.
- Remembered nickname and in-call duration timer.
Audio
- PipeWire capture/playback, selectable input and output devices, per-app gain.
- Opus codec (48 kHz mono, 20 ms frames) with an adaptive jitter buffer + packet-loss concealment.
- Noise gate with a draggable threshold on a live mic meter (test your mic off-call too).
- Mix-bus soft limiter and opt-in echo cancellation (PipeWire WebRTC AEC + noise suppression).
Voice controls
- Self-mute, deafen, and rebindable push-to-talk.
- Per-peer volume, local mute, and speaking indicators.
Text chat
- In-room text chat over the gossip plane, with clickable links and inline image/audio attachments.
- Drag-selectable, copyable messages; right-click context menu on all text fields.
Shared music listening
- Build a personal playlist of local audio files with a full transport (play/pause, seek, reorder).
- Let others tune in: peers stream your current track, timeline-synced and gapless, sitting under voice at their own volume.
Screen share (via pixelpass)
- Share your screen; peers click 👁 Watch to open the stream in mpv (vlc fallback).
- Live badges on sharing peers; per-app audio capture.
Recording & notifications
- Local call recording (mic + incoming mix → WAV in
~/peerspeak-recordings/). - Desktop notifications and event chimes with per-event custom sound overrides.
UI & networking
- Selectable room layouts (3-Column, Bottom Dock, Drawer) with draggable, persisted dividers.
- 10 built-in themes (Catppuccin, Dracula, Nord, Tokyo Night, Gruvbox, Solarized…), all WCAG-AA checked.
- Network mode picker (relay-no-discovery default, full n0, or direct-only); retained-address reconnect.
- Config, window size/position, and all preferences persisted to
~/.config/peerspeak/.
See docs/FEATURES.md for the full inventory and field-test status, and docs/ARCHITECTURE.md for internals.
Roadmap
- Contacts & invites — friends list with invite-notification one-click join (design in
docs/contacts-plan.md). - Spatial audio & per-peer EQ.
- Soundboard — play short clips into the call mix.
- Room persistence / invite links beyond the raw ticket.
- Windows support — cross-compiles and launches under Wine today; needs a real WASAPI audio pass (see
docs/WINDOWS.md).
Building
PeerSpeak builds with a stable Rust toolchain (edition 2024). Install the system dependencies below, then:
cargo build --release
./target/release/peerspeak
System dependencies
Arch Linux
sudo pacman -S --needed rust pipewire opus pkgconf git
Debian / Ubuntu
sudo apt install build-essential pkg-config clang libclang-dev \
libpipewire-0.3-dev libopus-dev libasound2-dev libxcb1-dev
Plus a Rust toolchain via rustup. clang/libclang are needed for the PipeWire bindings (bindgen).
At runtime you need a running PipeWire server. Screen sharing additionally requires pixelpass on your PATH, and mpv (or vlc) to watch a peer's share.
Packaging
- Arch:
cd packaging && makepkg -si(usespackaging/PKGBUILD). - Debian/Ubuntu:
.debis built withcargo-debfrom the[package.metadata.deb]block inCargo.toml. Build inside a Debian/Ubuntu environment so the binary links that distro's glibc. - Windows: see
docs/WINDOWS.md.
License
PeerSpeak is licensed under the MIT License, © 2026 mollusk.
Third-party components bundled with PeerSpeak (the Rust dependency tree, the
statically bundled Opus codec on some builds, and embedded fonts) are all under
permissive licenses; their texts and a full dependency manifest are collected in
THIRD_PARTY_LICENSES.