diff --git a/archive.go b/archive.go
index 29bdc8a..45a51e0 100644
--- a/archive.go
+++ b/archive.go
@@ -5,14 +5,12 @@ import (
 	"os"
 	"path/filepath"
 	"time"
-
-	"b612.me/starmap"
 )
 
-var archMap starmap.StarMapKV
+var archMap starMapKV
 
 func init() {
-	archMap = starmap.NewStarMap()
+	archMap = newStarMap()
 }
 
 type Archive interface {
diff --git a/go.mod b/go.mod
index 9e82564..22c8f17 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,4 @@ module b612.me/starlog
 
 go 1.16
 
-require (
-	b612.me/starmap v1.2.4
-	golang.org/x/sys v0.18.0
-)
+require golang.org/x/sys v0.24.0
diff --git a/go.sum b/go.sum
index 80908db..d88e7bd 100644
--- a/go.sum
+++ b/go.sum
@@ -1,55 +1,2 @@
-b612.me/notify v1.2.5 h1:fASpzi8YAo78g6jKnefzfbsQz0nGNYFbClB2Bylj+MA=
-b612.me/notify v1.2.5/go.mod h1:GTnAdC6v9krGxtC8Gkn8TcyUsYnHSiHjRAXsONPiLpI=
-b612.me/starcrypto v0.0.3 h1:lBGtz0kBdsV198BDQ72zBgOXYKBCb47R9tCWP/PFIwA=
-b612.me/starcrypto v0.0.3/go.mod h1:pF5A16p8r/h1G0x7ZNmmAF6K1sdIMpbCUxn2WGC8gZ0=
-b612.me/stario v0.0.9 h1:bFDlejUJMwZ12a09snZJspQsOlkqpDAl9qKPEYOGWCk=
-b612.me/stario v0.0.9/go.mod h1:x4D/x8zA5SC0pj/uJAi4FyG5p4j5UZoMEZfvuRR6VNw=
-b612.me/starmap v1.2.4 h1:gfAyBtzW3KKCIyI14I2pEqGsR/u2E+3tkH0xRqtWb4E=
-b612.me/starmap v1.2.4/go.mod h1:EhOUzkItc5IcyBmr1C7/vmZBbW3GgCWs63hGn7WhuMc=
-b612.me/starnet v0.1.8 h1:sTNytUFP38i2BFR9nha3lTSLYb7El3tvKpZplYCrhZk=
-b612.me/starnet v0.1.8/go.mod h1:k862Kf8DiVWTqdX6PHTFb6NoT+3G3Y74n8NCyNhuP0Y=
-github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
-golang.org/x/crypto v0.21.0 h1:X31++rzVUdKhX5sWmSOFZxx8UW/ldWx55cbf08iNAMA=
-golang.org/x/crypto v0.21.0/go.mod h1:0BP7YvVV9gBbVKyeTG0Gyn+gZm94bibOW5BjDEYAOMs=
-golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
-golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
-golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
-golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4=
-golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
-golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
-golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
-golang.org/x/term v0.18.0 h1:FcHjZXDMxI8mM3nwhX9HlKop4C0YQvCVCdwYl2wOtE8=
-golang.org/x/term v0.18.0/go.mod h1:ILwASektA3OnRv7amZ1xhE/KTR+u50pbXfZ03+6Nx58=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
-golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
-golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg=
+golang.org/x/sys v0.24.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
diff --git a/stacks.go b/stacks.go
new file mode 100644
index 0000000..2d1e27a
--- /dev/null
+++ b/stacks.go
@@ -0,0 +1,149 @@
+package starlog
+
+import (
+	"errors"
+	"io"
+	"os"
+	"sync"
+	"sync/atomic"
+)
+
+type starMapKV struct {
+	kvMap map[interface{}]interface{}
+	mu    sync.RWMutex
+}
+
+func newStarMap() starMapKV {
+	var mp starMapKV
+	mp.kvMap = make(map[interface{}]interface{})
+	return mp
+}
+
+func (m *starMapKV) Get(key interface{}) (interface{}, error) {
+	var err error
+	m.mu.RLock()
+	defer m.mu.RUnlock()
+	data, ok := m.kvMap[key]
+	if !ok {
+		err = os.ErrNotExist
+	}
+	return data, err
+}
+
+func (m *starMapKV) MustGet(key interface{}) interface{} {
+	result, _ := m.Get(key)
+	return result
+}
+
+func (m *starMapKV) Store(key interface{}, value interface{}) error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	m.kvMap[key] = value
+	return nil
+}
+
+func (m *starMapKV) Exists(key interface{}) bool {
+	m.mu.RLock()
+	defer m.mu.RUnlock()
+	_, ok := m.kvMap[key]
+	return ok
+}
+
+func (m *starMapKV) Delete(key interface{}) error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	delete(m.kvMap, key)
+	return nil
+}
+
+func (m *starMapKV) Range(run func(k interface{}, v interface{}) bool) error {
+	for k, v := range m.kvMap {
+		if !run(k, v) {
+			break
+		}
+	}
+	return nil
+}
+
+type starChanStack struct {
+	data    chan interface{}
+	cap     uint64
+	current uint64
+	isClose atomic.Value
+}
+
+func newStarChanStack(cap uint64) *starChanStack {
+	rtnBuffer := new(starChanStack)
+	rtnBuffer.cap = cap
+	rtnBuffer.isClose.Store(false)
+	rtnBuffer.data = make(chan interface{}, cap)
+	return rtnBuffer
+}
+
+func (s *starChanStack) init() {
+	s.cap = 1024
+	s.data = make(chan interface{}, s.cap)
+	s.isClose.Store(false)
+}
+
+func (s *starChanStack) Free() uint64 {
+	return s.cap - s.current
+}
+
+func (s *starChanStack) Cap() uint64 {
+	return s.cap
+}
+
+func (s *starChanStack) Len() uint64 {
+	return s.current
+}
+
+func (s *starChanStack) Pop() (interface{}, error) {
+	if s.isClose.Load() == nil {
+		s.init()
+	}
+	if s.isClose.Load().(bool) {
+		return 0, io.EOF
+	}
+	data, ok := <-s.data
+	if !ok {
+		s.isClose.Store(true)
+		return 0, errors.New("channel read error")
+	}
+	for {
+		current := atomic.LoadUint64(&s.current)
+		if atomic.CompareAndSwapUint64(&s.current, current, current-1) {
+			break
+		}
+	}
+	return data, nil
+}
+
+func (s *starChanStack) Push(data interface{}) error {
+	defer func() {
+		recover()
+	}()
+	if s.isClose.Load() == nil {
+		s.init()
+	}
+	if s.isClose.Load().(bool) {
+		return io.EOF
+	}
+	s.data <- data
+	for {
+		current := atomic.LoadUint64(&s.current)
+		if atomic.CompareAndSwapUint64(&s.current, current, current+1) {
+			break
+		}
+	}
+	return nil
+}
+
+func (s *starChanStack) Close() error {
+	if s.isClose.Load() == nil {
+		s.init()
+	}
+	s.isClose.Store(true)
+	close(s.data)
+	return nil
+}
diff --git a/typed.go b/typed.go
index dee241d..c8c7be5 100644
--- a/typed.go
+++ b/typed.go
@@ -8,7 +8,6 @@ import (
 	"time"
 
 	"b612.me/starlog/colorable"
-	"b612.me/starmap"
 )
 
 const (
@@ -33,7 +32,7 @@ var (
 		LvPanic:    "PANIC",
 		LvFatal:    "FATAL",
 	}
-	stacks        *starmap.StarChanStack
+	stacks        *starChanStack
 	stackStarted  bool = false
 	stackStopChan chan int
 	stackMu       sync.Mutex
@@ -184,7 +183,7 @@ func StartStacks() {
 	unlock := make(chan struct{})
 	go func() {
 		stackStarted = true
-		stacks = starmap.NewStarChanStack(1024)
+		stacks = newStarChanStack(1024)
 		stackMu.Unlock()
 		unlock <- struct{}{}
 		defer func() {