diff --git a/github.go b/github.go
index 9f3b6f0..593fea6 100644
--- a/github.go
+++ b/github.go
@@ -119,7 +119,11 @@ func (*App) githubToken(ctx context.Context) (string, error) {
 
 // fetchPRs retrieves all PRs involving the current user.
 func (app *App) fetchPRs(ctx context.Context) (incoming []PR, outgoing []PR, err error) {
+	// Use targetUser if specified, otherwise use authenticated user
 	user := app.currentUser.GetLogin()
+	if app.targetUser != "" {
+		user = app.targetUser
+	}
 
 	// Single query to get all PRs involving the user
 	query := fmt.Sprintf("is:open is:pr involves:%s archived:false", user)
@@ -183,6 +187,7 @@ func (app *App) fetchPRs(ctx context.Context) (incoming []PR, outgoing []PR, err
 		}
 
 		// Categorize as incoming or outgoing
+		// When viewing another user's PRs, we're looking at it from their perspective
 		if issue.GetUser().GetLogin() == user {
 			pr.IsBlocked = pr.NeedsReview
 			outgoing = append(outgoing, pr)
diff --git a/main.go b/main.go
index bf577b3..e8dbc82 100644
--- a/main.go
+++ b/main.go
@@ -6,6 +6,7 @@ package main
 
 import (
 	"context"
+	"flag"
 	"fmt"
 	"log"
 	"os"
@@ -55,6 +56,7 @@ type App struct {
 	lastSuccessfulFetch time.Time
 	turnClient          *turn.Client
 	currentUser         *github.User
+	targetUser          string // User to query PRs for (overrides currentUser if set)
 	previousBlockedPRs  map[string]bool
 	client              *github.Client
 	cacheDir            string
@@ -69,6 +71,11 @@ type App struct {
 }
 
 func main() {
+	// Parse command line flags
+	var targetUser string
+	flag.StringVar(&targetUser, "user", "", "GitHub user to query PRs for (defaults to authenticated user)")
+	flag.Parse()
+
 	log.SetFlags(log.LstdFlags | log.Lshortfile)
 	log.Printf("Starting GitHub PR Monitor (version=%s, commit=%s, date=%s)", version, commit, date)
 
@@ -88,6 +95,7 @@ func main() {
 		cacheDir:           cacheDir,
 		hideStaleIncoming:  true,
 		previousBlockedPRs: make(map[string]bool),
+		targetUser:         targetUser,
 	}
 
 	log.Println("Initializing GitHub clients...")
@@ -103,6 +111,11 @@ func main() {
 	}
 	app.currentUser = user
 
+	// Log if we're using a different target user
+	if app.targetUser != "" && app.targetUser != user.GetLogin() {
+		log.Printf("Querying PRs for user '%s' instead of authenticated user '%s'", app.targetUser, user.GetLogin())
+	}
+
 	log.Println("Starting systray...")
 	// Create a cancellable context for the application
 	appCtx, cancel := context.WithCancel(ctx)
@@ -118,7 +131,13 @@ func main() {
 func (app *App) onReady(ctx context.Context) {
 	log.Println("System tray ready")
 	systray.SetTitle("Loading PRs...")
-	systray.SetTooltip("GitHub PR Monitor")
+
+	// Set tooltip based on whether we're using a custom user
+	tooltip := "GitHub PR Monitor"
+	if app.targetUser != "" {
+		tooltip = fmt.Sprintf("GitHub PR Monitor - @%s", app.targetUser)
+	}
+	systray.SetTooltip(tooltip)
 
 	// Set up click handlers
 	systray.SetOnClick(func(menu systray.IMenu) {
@@ -199,7 +218,13 @@ func (app *App) updatePRs(ctx context.Context) {
 		if !app.lastSuccessfulFetch.IsZero() {
 			timeSinceSuccess = time.Since(app.lastSuccessfulFetch).Round(time.Minute).String()
 		}
-		systray.SetTooltip(fmt.Sprintf("GitHub PR Monitor - Error: %v\nLast success: %s ago", err, timeSinceSuccess))
+
+		// Include user in error tooltip
+		userInfo := ""
+		if app.targetUser != "" {
+			userInfo = fmt.Sprintf(" - @%s", app.targetUser)
+		}
+		systray.SetTooltip(fmt.Sprintf("GitHub PR Monitor%s - Error: %v\nLast success: %s ago", userInfo, err, timeSinceSuccess))
 		return
 	}
 
diff --git a/ui.go b/ui.go
index e11b265..dbf6938 100644
--- a/ui.go
+++ b/ui.go
@@ -260,7 +260,11 @@ func (app *App) addStaticMenuItems(ctx context.Context) {
 	})
 
 	// About
-	aboutItem := systray.AddMenuItem("About", "")
+	aboutText := "About"
+	if app.targetUser != "" {
+		aboutText = fmt.Sprintf("About (viewing @%s)", app.targetUser)
+	}
+	aboutItem := systray.AddMenuItem(aboutText, "")
 	app.menuItems = append(app.menuItems, aboutItem)
 	aboutItem.Click(func() {
 		log.Println("GitHub PR Monitor - A system tray app for tracking PR reviews")