diff --git a/installers/setup_obsidian.sh b/installers/setup_obsidian.sh
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+#!/usr/bin/env bash
+#
+# setup_obsidian.sh - Obsidian AppImage Installer
+# Description: Installs Obsidian as AppImage
+# Category: Productivity
+# Usage: ./setup_obsidian.sh [OPTIONS]
+#        -y, --yes, --non-interactive    Skip confirmation prompts
+#        -h, --help                      Show help message
+#
+
+set -euo pipefail
+
+# Parse command line arguments
+NON_INTERACTIVE=false
+
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+        -y|--yes|--non-interactive)
+            NON_INTERACTIVE=true
+            shift
+            ;;
+        -h|--help)
+            echo "Usage: $0 [OPTIONS]"
+            echo ""
+            echo "Options:"
+            echo "  -y, --yes, --non-interactive    Skip confirmation prompts"
+            echo "  -h, --help                      Show this help message"
+            echo ""
+            echo "Description:"
+            echo "  Installs Obsidian AppImage from GitHub releases"
+            echo "  URL: https://github.com/obsidianmd/obsidian-releases"
+            echo ""
+            echo "Examples:"
+            echo "  ./setup_obsidian.sh                    # Install Obsidian"
+            echo "  ./setup_obsidian.sh --non-interactive  # Skip prompts"
+            exit 0
+            ;;
+        *)
+            echo "Unknown option: $1"
+            exit 1
+            ;;
+    esac
+done
+
+# Source shared libraries
+readonly SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
+source "$SCRIPT_DIR/../lib/logging.sh"
+source "$SCRIPT_DIR/../lib/dependencies.sh"
+
+# Constants
+readonly APP_NAME="obsidian"
+readonly DL_DIR="${HOME}/Downloads/$APP_NAME"
+readonly LOG_DIR="${HOME}/logs/$APP_NAME"
+readonly LOG_FILE="${LOG_DIR}/$(date +%Y%m%d_%H%M%S)_${APP_NAME}.log"
+readonly CONFIG_DIR="$HOME/.config/$APP_NAME"
+readonly OBSIDIAN_URL="https://obsidian.md"
+
+# Hardcoded AppImage URL (no scraping, no variables in URL)
+# Verified working: https://github.com/obsidianmd/obsidian-releases/releases/download/v1.11.7/Obsidian-1.11.7.AppImage
+readonly APPIMAGE_URL="https://github.com/obsidianmd/obsidian-releases/releases/download/v1.11.7/Obsidian-1.11.7.AppImage"
+
+# Ensure directories exist
+mkdir -p "$DL_DIR"
+mkdir -p "$LOG_DIR"
+mkdir -p "$CONFIG_DIR"
+
+log_info "Starting Obsidian AppImage installation..."
+
+# Check dependencies
+check_dependencies "curl"
+
+# Just use the hardcoded URL
+get_download_url() {
+    # Eventually we can add version support here
+    # For now, just return the hardcoded URL
+    echo "$APPIMAGE_URL"
+}
+
+# Download Obsidian
+download_obsidian() {
+    local url="$1"
+    local output="$2"
+    
+    log_info "Downloading Obsidian AppImage..."
+    log_info "From: $url"
+    
+    if ! curl -fL --output "$output" --progress-bar "$url"; then
+        log_error "Failed to download Obsidian"
+        exit 1
+    fi
+    
+    log_success "Downloaded: $output ($(du -h "$output" | cut -f1))"
+}
+
+# Install AppImage
+install_appimage() {
+    local appimage="$1"
+    local install_dir="/opt/obsidian"
+    
+    log_info "Installing to $install_dir..."
+    
+    sudo mkdir -p "$install_dir"
+    sudo cp "$appimage" "$install_dir/obsidian.AppImage"
+    sudo chmod +x "$install_dir/obsidian.AppImage"
+    
+    sudo ln -sf "$install_dir/obsidian.AppImage" /usr/local/bin/obsidian 2>/dev/null || true
+    
+    cat > /tmp/obsidian.desktop << 'EOF'
+[Desktop Entry]
+Version=1.0
+Name=Obsidian
+Comment=A knowledge base on local Markdown files
+Exec=/opt/obsidian/obsidian.AppImage %U
+Terminal=false
+Type=Application
+Icon=obsidian
+Categories=Office;TextEditor;Utility;
+MimeType=text/plain;text/markdown;
+StartupWMClass=obsidian
+StartupNotify=true
+EOF
+    
+    sudo mv /tmp/obsidian.desktop /usr/share/applications/
+    sudo chmod 644 /usr/share/applications/obsidian.desktop
+    sudo update-desktop-database /usr/share/applications/ 2>/dev/null || true
+    
+    log_success "AppImage installed"
+    log_info "Run: obsidian"
+}
+
+# Main installation process
+main() {
+    log_info "=== Obsidian Installer ==="
+    
+    local download_url
+    download_url=$(get_download_url)
+    
+    log_info "Download URL: $download_url"
+    
+    local filename="obsidian.appimage"
+    local output_path="$DL_DIR/$filename"
+    
+    if [[ -f "$output_path" ]]; then
+        log_warn "File exists: $output_path"
+        if [[ "$NON_INTERACTIVE" == "true" ]]; then
+            log_info "Using existing file (non-interactive)"
+        else
+            read -rp "Re-download? [y/N]: " confirm
+            [[ "$confirm" == [yY] ]] && rm "$output_path" || log_info "Using existing file"
+        fi
+    fi
+    
+    if [[ ! -f "$output_path" ]]; then
+        download_obsidian "$download_url" "$output_path"
+    fi
+    
+    install_appimage "$output_path"
+    sudo chmod +x "$output_path"
+    
+    if [[ -d "$CONFIG_DIR" ]]; then
+        backup_file "$CONFIG_DIR"
+    fi
+    
+    log_success "Obsidian installation complete!"
+    log_info "Config: $CONFIG_DIR"
+    log_info "Binary: /opt/obsidian/obsidian.AppImage"
+    log_info "Shortcut: obsidian"
+    log_info "Visit: $OBSIDIAN_URL"
+}
+
+main "$@"
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