add the "unknown command" mentionned in the readme

.vscode/launch.json

@@ -0,0 +1,12 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "sunbeam",
+            "type": "go",
+            "request": "launch",
+            "console": "integratedTerminal",
+            "program": "${workspaceFolder}"
+        },
+    ],
+}

cmd/list.go

@@ -16,8 +16,9 @@ func NewCmdList() *cobra.Command {
 	}{}
 
 	cmd := &cobra.Command{
-		Use:   "list",
-		Short: "List Kakoune sessions and clients.",
+		Use:     "list",
+		Aliases: []string{"ls"},
+		Short:   "List Kakoune sessions and clients.",
 		RunE: func(cmd *cobra.Command, args []string) error {
 			kakSessions, err := kak.Sessions()
 			if err != nil {

cmd/root.go

@@ -2,15 +2,48 @@ package cmd
 
 import (
 	_ "embed"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
 
 	"github.com/spf13/cobra"
 )
 
 func NewRootCmd(version string) *cobra.Command {
 	cmd := &cobra.Command{
-		Use:     "kks [-s <session>] [-c <client>] [<args>]",
-		Version: version,
-		Short:   "Handy Kakoune companion.",
+		Use:                "kks [-s <session>] [-c <client>] [<args>]",
+		Version:            version,
+		DisableFlagParsing: true,
+		Args:               cobra.ArbitraryArgs,
+		Short:              "Handy Kakoune companion.",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if len(args) == 0 {
+				return cmd.Usage()
+			}
+
+			if args[0] == "--help" || args[0] == "-h" {
+				return cmd.Help()
+			}
+
+			extensions, err := FindExtensions()
+			if err != nil {
+				return err
+			}
+
+			scriptPath, ok := extensions[args[0]]
+			if !ok {
+				return cmd.Help()
+			}
+
+			execCmd := exec.Command(scriptPath, args[1:]...)
+
+			execCmd.Stdin = os.Stdin
+			execCmd.Stdout = os.Stdout
+			execCmd.Stderr = os.Stderr
+
+			return execCmd.Run()
+		},
 	}
 
 	cmd.AddCommand(NewCmdAttach())
@@ -26,3 +59,44 @@ func NewRootCmd(version string) *cobra.Command {
 
 	return cmd
 }
+
+func FindExtensions() (map[string]string, error) {
+	path := os.Getenv("PATH")
+
+	extensions := make(map[string]string)
+	for _, dir := range filepath.SplitList(path) {
+		if dir == "" {
+			// Unix shell semantics: path element "" means "."
+			dir = "."
+		}
+
+		dir, err := filepath.Abs(dir)
+		if err != nil {
+			continue
+		}
+
+		entries, err := os.ReadDir(dir)
+		if err != nil {
+			continue
+		}
+
+		for _, entry := range entries {
+			if entry.IsDir() {
+				continue
+			}
+
+			if !strings.HasPrefix(entry.Name(), "kks-") {
+				continue
+			}
+
+			alias := strings.TrimPrefix(entry.Name(), "kks-")
+			if _, ok := extensions[alias]; ok {
+				continue
+			}
+
+			extensions[alias] = filepath.Join(dir, entry.Name())
+		}
+	}
+
+	return extensions, nil
+}