diff --git a/.claude/settings.json b/.claude/settings.json
index 4fd816c7..f0d9024c 100644
--- a/.claude/settings.json
+++ b/.claude/settings.json
@@ -2,11 +2,11 @@
   "hooks": {
     "PostToolUse": [
       {
-        "matcher": "Edit|Write",
+        "matcher": "Edit|Write|MultiEdit",
         "hooks": [
           {
             "type": "command",
-            "command": "jq -r '.tool_input.file_path // empty' | xargs -I{} gofumpt -w {}"
+            "command": "jq -r '.tool_input.file_path // empty' | { read -r f; case \"$f\" in *.go) gofumpt -w \"$f\" ;; esac; } 2>/dev/null || true"
           }
         ]
       }
diff --git a/CLAUDE.md b/CLAUDE.md
new file mode 100644
index 00000000..d1f42b8c
--- /dev/null
+++ b/CLAUDE.md
@@ -0,0 +1,5 @@
+# CLAUDE.md
+
+## Build & test
+- All Go commands need `GOFLAGS=-mod=vendor` (deps are vendored, including the `jesseduffield/gocui` fork and the Docker SDK).
+- Unit tests: `GOFLAGS=-mod=vendor go test ./...`
diff --git a/pkg/commands/docker.go b/pkg/commands/docker.go
index 0ce4fba1..b055441a 100644
--- a/pkg/commands/docker.go
+++ b/pkg/commands/docker.go
@@ -154,9 +154,25 @@ func NewDockerCommand(log *logrus.Entry, osCommand *OSCommand, tr *i18n.Translat
 		log.Warn(err.Error())
 	}
 
+	// When the user passes -p outside of a compose directory, treat it as the
+	// local project so the project/services panels still appear and filtering
+	// is applied. Inside a compose dir, LocalProjectName is derived from
+	// container labels later in RefreshContainersAndServices.
+	if !dockerCommand.InDockerComposeProject && config.ProjectName != "" {
+		dockerCommand.LocalProjectName = config.ProjectName
+	}
+
 	return dockerCommand, nil
 }
 
+// IsProjectScoped reports whether lazydocker should be scoped to a single
+// compose project — either because we're inside a compose directory or
+// because the user passed -p. When false, the project/services panels are
+// hidden and all containers are shown in a flat list.
+func (c *DockerCommand) IsProjectScoped() bool {
+	return c.InDockerComposeProject || c.Config.ProjectName != ""
+}
+
 func (c *DockerCommand) setDockerComposeCommand(config *config.AppConfig) {
 	if config.UserConfig.CommandTemplates.DockerCompose != "docker compose" {
 		return
diff --git a/pkg/commands/docker_test.go b/pkg/commands/docker_test.go
index 0d459686..db45a06f 100644
--- a/pkg/commands/docker_test.go
+++ b/pkg/commands/docker_test.go
@@ -5,6 +5,7 @@ import (
 	"testing"
 
 	"github.com/docker/docker/client"
+	"github.com/jesseduffield/lazydocker/pkg/config"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -61,3 +62,30 @@ func TestNewDockerClientVersionNegotiation(t *testing.T) {
 			"client version should not be locked to DOCKER_API_VERSION env var")
 	})
 }
+
+// TestIsProjectScoped covers the predicate that drives whether the
+// project/services panels appear and whether the containers panel filters by
+// project. The "outside compose dir + -p" case is the regression we fixed
+// after PR #776 silently disabled it.
+func TestIsProjectScoped(t *testing.T) {
+	cases := []struct {
+		name                   string
+		inDockerComposeProject bool
+		projectName            string
+		want                   bool
+	}{
+		{"inside compose dir, no -p", true, "", true},
+		{"inside compose dir, with -p", true, "myproject", true},
+		{"outside compose dir, no -p", false, "", false},
+		{"outside compose dir, with -p", false, "myproject", true},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			c := &DockerCommand{
+				InDockerComposeProject: tc.inDockerComposeProject,
+				Config:                 &config.AppConfig{ProjectName: tc.projectName},
+			}
+			assert.Equal(t, tc.want, c.IsProjectScoped())
+		})
+	}
+}
diff --git a/pkg/gui/containers_panel.go b/pkg/gui/containers_panel.go
index 5410502d..a638ee29 100644
--- a/pkg/gui/containers_panel.go
+++ b/pkg/gui/containers_panel.go
@@ -87,15 +87,14 @@ func (gui *Gui) getContainersPanel() *panels.SideListPanel[*commands.Container]
 				return false
 			}
 
-			// Only apply project and standalone filtering when we are inside a
-			// docker-compose project. Outside of a compose project all
-			// containers are shown in a flat list regardless of which compose
-			// project they belong to.
-			if gui.DockerCommand.InDockerComposeProject {
-				// This check must be inside the InDockerComposeProject guard:
-				// outside a compose project, services are still derived from
-				// container labels, so compose-managed containers from other
-				// projects would be incorrectly hidden.
+			// When project-scoped, apply project and standalone filtering.
+			// Otherwise all containers are shown in a flat list regardless
+			// of which compose project they belong to.
+			if gui.DockerCommand.IsProjectScoped() {
+				// This check must be inside the IsProjectScoped guard: when
+				// not project-scoped, services are still derived from container
+				// labels, so compose-managed containers from other projects
+				// would be incorrectly hidden.
 				//
 				// Note that this is O(N*M) time complexity where N is the number of services
 				// and M is the number of containers. We expect N to be small but M may be large,
diff --git a/pkg/gui/gui.go b/pkg/gui/gui.go
index e7b55463..6ea2ee6c 100644
--- a/pkg/gui/gui.go
+++ b/pkg/gui/gui.go
@@ -459,7 +459,7 @@ func (gui *Gui) ShouldRefresh(key string) bool {
 }
 
 func (gui *Gui) initiallyFocusedViewName() string {
-	if gui.DockerCommand.InDockerComposeProject {
+	if gui.DockerCommand.IsProjectScoped() {
 		return "services"
 	}
 	return "containers"
diff --git a/pkg/gui/project_panel.go b/pkg/gui/project_panel.go
index a7c6ef55..e41f7b8f 100644
--- a/pkg/gui/project_panel.go
+++ b/pkg/gui/project_panel.go
@@ -59,12 +59,7 @@ func (gui *Gui) getProjectPanel() *panels.SideListPanel[*commands.Project] {
 			return gui.renderContainersAndServices()
 		},
 		Hide: func() bool {
-			// Only show the project panel when we are inside a docker-compose
-			// project directory. When launched outside of a compose project
-			// there is no meaningful local project to display, so we hide the
-			// panel and let the containers panel show all containers in a flat
-			// list (matching the behaviour from before v0.25).
-			return !gui.DockerCommand.InDockerComposeProject
+			return !gui.DockerCommand.IsProjectScoped()
 		},
 	}
 }
@@ -99,18 +94,19 @@ func (gui *Gui) refreshProject() error {
 }
 
 // getDiscoveredProjects returns all docker compose projects by examining container labels.
-// The local project (from docker-compose.yml in the current directory) is included if
-// it has running containers or if InDockerComposeProject is true.
+// The local project (from docker-compose.yml in the current directory, or from -p) is
+// included even when it has no running containers, so the user always sees the project
+// they explicitly scoped to.
 func (gui *Gui) getDiscoveredProjects() []*commands.Project {
 	containers := gui.Panels.Containers.List.GetAllItems()
 	projectNames := gui.DockerCommand.GetProjectNames(containers)
 
-	// If we're in a docker compose project but it has no running containers,
-	// still include it. We don't fall back to the directory name here to avoid
+	// If we're scoped to a project but it has no running containers, still
+	// include it. We don't fall back to the directory name here to avoid
 	// briefly flashing the wrong project name on startup.
 	localName := gui.DockerCommand.LocalProjectName
 
-	if gui.DockerCommand.InDockerComposeProject && localName != "" {
+	if gui.DockerCommand.IsProjectScoped() && localName != "" {
 		found := false
 		for _, name := range projectNames {
 			if name == localName {
@@ -195,6 +191,11 @@ func (gui *Gui) renderAllLogs(project *commands.Project) tasks.TaskFunc {
 }
 
 func (gui *Gui) renderDockerComposeConfig(project *commands.Project) tasks.TaskFunc {
+	if !gui.DockerCommand.InDockerComposeProject {
+		return gui.NewSimpleRenderStringTask(func() string {
+			return "Compose config is only available when launched from a docker-compose project directory"
+		})
+	}
 	if project != nil && project.Name != gui.DockerCommand.LocalProjectName {
 		return gui.NewSimpleRenderStringTask(func() string {
 			return "Compose config is not available for non-local projects"
diff --git a/pkg/gui/services_panel.go b/pkg/gui/services_panel.go
index 878eaa4b..edc894e9 100644
--- a/pkg/gui/services_panel.go
+++ b/pkg/gui/services_panel.go
@@ -90,12 +90,7 @@ func (gui *Gui) getServicesPanel() *panels.SideListPanel[*commands.Service] {
 			return presentation.GetServiceDisplayStrings(&gui.Config.UserConfig.Gui, service)
 		},
 		Hide: func() bool {
-			// Only show the services panel when we are inside a docker-compose
-			// project directory. When launched outside of a compose project
-			// there is no local project context, so the panel is hidden and
-			// all containers are shown in a flat list (matching pre-v0.25
-			// behaviour).
-			return !gui.DockerCommand.InDockerComposeProject
+			return !gui.DockerCommand.IsProjectScoped()
 		},
 	}
 }
diff --git a/pkg/gui/views.go b/pkg/gui/views.go
index 95553f5a..f231c3c6 100644
--- a/pkg/gui/views.go
+++ b/pkg/gui/views.go
@@ -130,7 +130,7 @@ func (gui *Gui) createAllViews() error {
 
 	gui.Views.Containers.Highlight = true
 	gui.Views.Containers.SelBgColor = selectedLineBgColor
-	if gui.Config.UserConfig.Gui.ShowAllContainers || !gui.DockerCommand.InDockerComposeProject {
+	if gui.Config.UserConfig.Gui.ShowAllContainers || !gui.DockerCommand.IsProjectScoped() {
 		gui.Views.Containers.Title = gui.Tr.ContainersTitle
 	} else {
 		gui.Views.Containers.Title = gui.Tr.StandaloneContainersTitle