diff --git a/cmd/packets/main.go b/cmd/packets/main.go
index 2f7624b..3bbca07 100644
--- a/cmd/packets/main.go
+++ b/cmd/packets/main.go
@@ -452,13 +452,12 @@ func Install(packagepath string, serial uint) error {
 	if err != nil {
 		return err
 	}
+	defer f.Close()
 
 	stat, _ := f.Stat()
 
 	totalsize := stat.Size()
 
-	defer f.Close()
-
 	counter := &CountingReader{R: f}
 
 	zs, err := zstd.NewReader(f)
@@ -514,7 +513,7 @@ func Install(packagepath string, serial uint) error {
 				return err
 			}
 
-			_, err = io.Copy(out, tr)
+			_, err = io.Copy(io.MultiWriter(out), tr)
 			out.Close()
 			if err != nil {
 				return err
@@ -531,8 +530,6 @@ func Install(packagepath string, serial uint) error {
 		}
 	}
 
-	// TODO LUA SCRIPT
-
 	L := lua.NewState()
 	defer L.Close()
 
@@ -542,6 +539,10 @@ func Install(packagepath string, serial uint) error {
 	L.SetGlobal("packets_package_dir", lua.LString(cfg.Config.DataDir))
 	L.SetGlobal("packets_bin_dir", lua.LString(cfg.Config.BinDir))
 	L.SetGlobal("script", lua.LString(manifest.Hooks.Install))
+	L.SetGlobal("data_dir", lua.LString(filepath.Join(cfg.Config.DataDir, name, "data")))
+
+	L.SetGlobal("path_join", L.NewFunction(internal.Ljoin))
+
 	osObject.RawSetString("execute", lua.LNil)
 	osObject.RawSetString("exit", lua.LNil)
 	osObject.RawSetString("getenv", lua.LNil)
@@ -1166,7 +1167,7 @@ func Unninstall(realname string) error {
 	if !exist {
 		return fmt.Errorf("this package isn't installed")
 	}
-	fmt.Printf("Sure you will remove %s ? y/n ", realname)
+	fmt.Printf("Sure you will remove %s ? [Y/n] ", realname)
 	var answer string
 	fmt.Scanf("%s", &answer)
 
@@ -1174,17 +1175,44 @@ func Unninstall(realname string) error {
 		return fmt.Errorf("operation cancelled")
 	}
 
-	cmd := exec.Command(filepath.Join(cfg.Config.DataDir, realname, "remove.sh"))
+	var manifest Manifest
 
-	cmd.Env = append(os.Environ(),
-		fmt.Sprintf("PACKETS_PACKAGE_DIR=%s", cfg.Config.DataDir),
-		fmt.Sprintf("PACKETS_PACKAGE_BIN_DIR=%s", cfg.Config.BinDir),
-	)
+	toml.DecodeFile(filepath.Join(cfg.Config.DataDir, realname, "manifest.toml"), &manifest)
 
-	cmd.Stdout, cmd.Stderr = os.Stdout, os.Stderr
+	L := lua.NewState()
+	defer L.Close()
 
-	if err := cmd.Run(); err != nil {
-		return err
+	osObject := L.GetGlobal("os").(*lua.LTable)
+	ioObject := L.GetGlobal("io").(*lua.LTable)
+
+	L.SetGlobal("packets_package_dir", lua.LString(cfg.Config.DataDir))
+	L.SetGlobal("packets_bin_dir", lua.LString(cfg.Config.BinDir))
+	L.SetGlobal("script", lua.LString(manifest.Hooks.Remove))
+	L.SetGlobal("data_dir", lua.LString(filepath.Join(cfg.Config.DataDir, realname, "data")))
+
+	L.SetGlobal("path_join", L.NewFunction(internal.Ljoin))
+
+	osObject.RawSetString("execute", lua.LNil)
+	osObject.RawSetString("exit", lua.LNil)
+	osObject.RawSetString("getenv", lua.LNil)
+
+	osObject.RawSetString("remove", L.NewFunction(internal.SafeRemove))
+	osObject.RawSetString("rename", L.NewFunction(internal.SafeRename))
+	osObject.RawSetString("copy", L.NewFunction(internal.SafeCopy))
+	osObject.RawSetString("symlink", L.NewFunction(internal.SymbolicLua))
+
+	ioObject.RawSetString("input", lua.LNil)
+	ioObject.RawSetString("output", lua.LNil)
+	ioObject.RawSetString("popen", lua.LNil)
+	ioObject.RawSetString("tmpfile", lua.LNil)
+	ioObject.RawSetString("stdout", lua.LNil)
+	ioObject.RawSetString("stdeer", lua.LNil)
+	ioObject.RawSetString("stdin", lua.LNil)
+	ioObject.RawSetString("lines", lua.LNil)
+	ioObject.RawSetString("open", L.NewFunction(internal.SafeOpen))
+
+	if err := L.DoFile(manifest.Hooks.Remove); err != nil {
+		log.Panic(err)
 	}
 
 	if err := os.RemoveAll(filepath.Join(cfg.Config.DataDir, realname)); err != nil {
@@ -1428,7 +1456,41 @@ func Upgrade(packagepath string, og_realname string, serial uint) error {
 
 	os.Rename(destDir, filepath.Join(cfg.Config.DataDir, name))
 
-	//TODO manifest.toml things
+	L := lua.NewState()
+	defer L.Close()
+
+	osObject := L.GetGlobal("os").(*lua.LTable)
+	ioObject := L.GetGlobal("io").(*lua.LTable)
+
+	L.SetGlobal("packets_package_dir", lua.LString(cfg.Config.DataDir))
+	L.SetGlobal("packets_bin_dir", lua.LString(cfg.Config.BinDir))
+	L.SetGlobal("script", lua.LString(manifest.Hooks.Install))
+	L.SetGlobal("data_dir", lua.LString(filepath.Join(cfg.Config.DataDir, name, "data")))
+
+	L.SetGlobal("path_join", L.NewFunction(internal.Ljoin))
+
+	osObject.RawSetString("execute", lua.LNil)
+	osObject.RawSetString("exit", lua.LNil)
+	osObject.RawSetString("getenv", lua.LNil)
+
+	osObject.RawSetString("remove", L.NewFunction(internal.SafeRemove))
+	osObject.RawSetString("rename", L.NewFunction(internal.SafeRename))
+	osObject.RawSetString("copy", L.NewFunction(internal.SafeCopy))
+	osObject.RawSetString("symlink", L.NewFunction(internal.SymbolicLua))
+
+	ioObject.RawSetString("input", lua.LNil)
+	ioObject.RawSetString("output", lua.LNil)
+	ioObject.RawSetString("popen", lua.LNil)
+	ioObject.RawSetString("tmpfile", lua.LNil)
+	ioObject.RawSetString("stdout", lua.LNil)
+	ioObject.RawSetString("stdeer", lua.LNil)
+	ioObject.RawSetString("stdin", lua.LNil)
+	ioObject.RawSetString("lines", lua.LNil)
+	ioObject.RawSetString("open", L.NewFunction(internal.SafeOpen))
+
+	if err := L.DoFile(manifest.Hooks.Install); err != nil {
+		log.Panic(err)
+	}
 
 	fmt.Printf("Package %s fully installed", name)
 
diff --git a/internal/internal.go b/internal/internal.go
index 4276b60..65cb077 100644
--- a/internal/internal.go
+++ b/internal/internal.go
@@ -77,7 +77,7 @@ func ManifestReadXZ(path string) (*Manifest, error) {
 			return nil, err
 		}
 
-		if header.Name == "/manifest.toml" || header.Name == "manifest.toml" {
+		if filepath.Base(header.Name) == "manifest.toml" {
 			decoder := toml.NewDecoder(tarReader)
 
 			var manifest Manifest
@@ -347,7 +347,17 @@ func SafeOpen(L *lua.LState) int {
 	return 2
 }
 
-func safeLines(L *lua.LState) int {
+func Ljoin(L *lua.LState) int {
 
-	return 2
+	n := L.GetTop()
+	parts := make([]string, 0, n)
+
+	for i := 1; i <= n; i++ {
+		val := L.Get(i)
+		parts = append(parts, val.String())
+	}
+
+	result := filepath.Join(parts...)
+	L.Push(lua.LString(result))
+	return 1
 }