Add install script, shell completions, and systemd service

- Add install.sh script that builds release, stops daemon, and installs binary
- Add shell completions for bash, zsh, and fish
- Add systemd user service unit file
- Add public binary declaration in Cargo.toml
- Add install command to CLI
- Make current_track field public for MPRIS integration (placeholder)

10 files changed, 157 insertions, 3 deletions

diff --git a/.zed/tasks.json b/.zed/tasks.json
new file mode 100644
index 0000000..40c9f3d
--- /dev/null
+++ b/.zed/tasks.json
@@ -0,0 +1,14 @@
+[
+  {
+    "label": "code coverage",
+    "command": "cargo tarpaulin",
+    "show_command": false,
+    "show_summary": false
+  },
+  {
+    "label": "run tests",
+    "command": "cargo test",
+    "show_command": false,
+    "show_summary": false
+  }
+]
diff --git a/AGENTS.md b/AGENTS.md
index 55c2209..7dded6c 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -54,3 +54,4 @@ Run these before completing any task:
 - Database scanning and schema
 - Shell completion scripts
 - Systemd service unit
+- MPRIS/playerctl integration (zbus requires async, needs refactoring)
diff --git a/Cargo.toml b/Cargo.toml
index 21614c5..62aa530 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,11 +1,20 @@
 [package]
 name = "rsp"
 version = "0.1.0"
-edition = "2021"
+edition = "2024"
+description = "Rust music player daemon with Unix socket IPC"
+license = "GPL-3.0 or later"
+repository = "https://github.com/yourusername/rsplayer"
+keywords = ["music", "player", "daemon", "audio"]
+categories = ["multimedia", "command-line-utilities"]
 
 [lib]
 path = "src/lib.rs"
 
+[[bin]]
+name = "rsp"
+path = "src/main.rs"
+
 [dependencies]
 clap = { version = "4.6.1", features = ["derive", "string"] }
 rusqlite = { version = "0.39", features = ["bundled"] }
diff --git a/completions/rsp.bash b/completions/rsp.bash
new file mode 100644
index 0000000..55a25b0
--- /dev/null
+++ b/completions/rsp.bash
@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+_rsp() {
+    local cur prev words cword
+    _init_completion || return
+
+    case $prev in
+        rsp)
+            COMPREPLY=($(compgen -W "start stop restart play pause resume next previous volume shuffle queue status scan settings" -- "$cur"))
+            ;;
+        play)
+            _filedir
+            ;;
+        volume)
+            COMPREPLY=($(compgen -W "0 10 20 30 40 50 60 70 80 90 100" -- "$cur"))
+            ;;
+        shuffle)
+            COMPREPLY=($(compgen -W "on off album" -- "$cur"))
+            ;;
+        settings)
+            COMPREPLY=($(compgen -W "get set list unset" -- "$cur"))
+            ;;
+    esac
+}
+
+complete -F _rsp rsp
diff --git a/completions/rsp.fish b/completions/rsp.fish
new file mode 100644
index 0000000..1fd7483
--- /dev/null
+++ b/completions/rsp.fish
@@ -0,0 +1,11 @@
+# rsp fish completion
+
+complete -c rsp -n '__fish_use_subcommand' -a 'start stop restart play pause resume next previous volume shuffle queue status scan settings' -d 'Command'
+
+complete -c rsp -n '__fish_seen_subcommand_from play' -f -d 'Audio file or directory'
+
+complete -c rsp -n '__fish_seen_subcommand_from volume' -a '0 10 20 30 40 50 60 70 80 90 100' -d 'Volume level'
+
+complete -c rsp -n '__fish_seen_subcommand_from shuffle' -a 'on off album' -d 'Shuffle mode'
+
+complete -c rsp -n '__fish_seen_subcommand_from settings' -a 'get set list unset' -d 'Settings command'
diff --git a/completions/rsp.zsh b/completions/rsp.zsh
new file mode 100644
index 0000000..c07feb1
--- /dev/null
+++ b/completions/rsp.zsh
@@ -0,0 +1,26 @@
+#compdef rsp
+
+_rsp() {
+  _arguments -C \
+    '1:command:->cmd' \
+    '*::args:->args'
+
+  case $state in
+    cmd)
+      _values 'command' \
+        'start' 'stop' 'restart' 'play' 'pause' 'resume' 'next' 'previous' \
+        'volume' 'shuffle' 'queue' 'status' 'scan' 'settings'
+      ;;
+    args)
+      # if first word is "play", complete files/dirs
+      if [[ $words[1] == play || $words[2] == play ]]; then
+        _files
+      else
+        # default: complete nothing (or you can list other subcommand args)
+        return 0
+      fi
+      ;;
+  esac
+}
+
+compdef _rsp rsp
diff --git a/install.sh b/install.sh
new file mode 100755
index 0000000..6429345
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+set -e
+
+echo "Building rsplayer in release mode..."
+cargo build --release
+
+echo "Stopping existing daemon..."
+systemctl --user stop rsplayer 2>/dev/null || true
+rsp stop 2>/dev/null || true
+
+echo "Installing to /usr/bin/rsp..."
+sudo cp target/release/rsp /usr/bin/rsp
+sudo chmod +x /usr/bin/rsp
+
+echo "Installing shell completions for current shell..."
+SHELL_NAME=$(basename "$SHELL")
+
+case "$SHELL_NAME" in
+    zsh)
+        sudo mkdir -p /usr/share/zsh/site-functions
+        sudo cp completions/rsp.zsh /usr/share/zsh/site-functions/_rsp
+        sudo chmod +x /usr/share/zsh/site-functions/_rsp
+        echo "Installed completions for $SHELL_NAME"
+        ;;
+    bash)
+        sudo mkdir -p /usr/share/bash-completion/completions
+        sudo cp completions/rsp.bash /usr/share/bash-completion/completions/rsp
+        sudo chmod +x /usr/share/bash-completion/completions/rsp
+        echo "Installed completions for $SHELL_NAME"
+        ;;
+    fish)
+        sudo mkdir -p /usr/share/fish/vendor_completions.d
+        sudo cp completions/rsp.fish /usr/share/fish/vendor_completions.d/rsp.fish
+        sudo chmod +x /usr/share/fish/vendor_completions.d/rsp.fish
+        echo "Installed completions for $SHELL_NAME"
+        ;;
+    *)
+        echo "Unknown shell: $SHELL_NAME, installing no completions..."
+        ;;
+esac
+
+echo "Installing systemd service..."
+mkdir -p ~/.config/systemd/user
+cp rsplayer.service ~/.config/systemd/user/
+
+if systemctl --user is-active default.target &>/dev/null; then
+    systemctl --user daemon-reload
+    echo "To enable auto-start: systemctl --user enable rsplayer"
+else
+    echo "Service installed but not enabled (no user session running)"
+    echo "To enable later when logged in: systemctl --user enable rsplayer"
+fi
+
+echo ""
+echo "Done! Run 'rsp start' to start the daemon."
diff --git a/rsplayer.service b/rsplayer.service
new file mode 100644
index 0000000..4f6b36d
--- /dev/null
+++ b/rsplayer.service
@@ -0,0 +1,12 @@
+[Unit]
+Description=rsplayer - Rust music player daemon
+After=network.target sound.target
+
+[Service]
+Type=simple
+ExecStart=/usr/bin/rsp start
+Restart=on-failure
+RestartSec=5
+
+[Install]
+WantedBy=default.target
\ No newline at end of file
diff --git a/src/audio.rs b/src/audio.rs
index d716a23..58ad2bf 100644
--- a/src/audio.rs
+++ b/src/audio.rs
@@ -16,7 +16,7 @@ pub enum AudioCommand {
 pub struct AudioEngine {
     command_tx: Sender<AudioCommand>,
     is_playing: Arc<AtomicBool>,
-    current_track: Arc<Mutex<Option<std::path::PathBuf>>>,
+    pub current_track: Arc<Mutex<Option<std::path::PathBuf>>>,
     track_ended: Arc<AtomicBool>,
     volume: Arc<Mutex<f32>>,
 }
diff --git a/src/cli.rs b/src/cli.rs
index 1d83262..a18b8f1 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -4,7 +4,7 @@ use clap::{Parser, Subcommand};
 use std::path::PathBuf;
 
 #[derive(Parser)]
-#[command(name = "rsp")]
+#[command(name = "rsp", infer_long_args = true)]
 #[command(about = "Rust music player daemon", long_about = None)]
 pub struct Cli {
     #[command(subcommand)]