diff --git a/Taskfile.yml b/Taskfile.yml
index 4d62ff4..62dfcbc 100644
--- a/Taskfile.yml
+++ b/Taskfile.yml
@@ -12,6 +12,9 @@ vars:
 tasks:
     update:
         cmds:
+            - go get -u forge.chapril.org/armen/jw
+            - go get -u forge.chapril.org/armen/memory
+            - go get -u forge.chapril.org/armen/model
             - go get -u forge.chapril.org/mls-361/application
             - go get -u forge.chapril.org/mls-361/crypto
             - go get -u forge.chapril.org/mls-361/failure
diff --git a/cmd/main.go b/cmd/main.go
index 6d7b33b..9548da9 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -59,24 +59,28 @@ func createComponents(app components.Application) (components.Logger, components
 	return logger, server, nil
 }
 
-func waitEnd(server components.Server) *sync.WaitGroup {
-	swg := new(sync.WaitGroup)
+func waitEnd(server components.Server) (*sync.WaitGroup, chan struct{}) {
+	endCh := make(chan struct{})
+	group := new(sync.WaitGroup)
 
-	swg.Add(1)
+	group.Add(1)
 
 	go func() { //@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
-		defer swg.Done()
+		defer group.Done()
 		defer server.Stop()
 
-		sigEnd := make(chan os.Signal, 1)
-		defer close(sigEnd)
+		sigCh := make(chan os.Signal, 1)
+		defer close(sigCh)
 
-		signal.Notify(sigEnd, os.Interrupt, syscall.SIGABRT, syscall.SIGQUIT, syscall.SIGTERM)
+		signal.Notify(sigCh, os.Interrupt, syscall.SIGABRT, syscall.SIGQUIT, syscall.SIGTERM)
 
-		<-sigEnd
+		select {
+		case <-sigCh:
+		case <-endCh:
+		}
 	}()
 
-	return swg
+	return group, endCh
 }
 
 func run() error {
@@ -97,17 +101,16 @@ func run() error {
 		"name", app.Name(),
 		"version", app.Version(),
 		"builtAt", app.BuiltAt().Format("2006-01-02 15:04:05"),
-		"pid", syscall.Getpid(),
+		"pid", os.Getpid(),
 	)
 
-	swg := waitEnd(server)
+	group, endCh := waitEnd(server)
 
 	err = server.Start()
-	if err != nil {
-		_ = syscall.Kill(syscall.Getpid(), syscall.SIGINT) //AFINIR
-	}
 
-	swg.Wait()
+	close(endCh)
+
+	group.Wait()
 
 	logger.Info( //:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
 		"END",
diff --git a/go.mod b/go.mod
index 90d0c04..a8ed335 100644
--- a/go.mod
+++ b/go.mod
@@ -3,11 +3,13 @@ module forge.chapril.org/armen/armen
 go 1.15
 
 require (
+	forge.chapril.org/armen/jw v0.0.0-20210412203118-f24a805abde4
 	forge.chapril.org/mls-361/application v0.0.0-20210414132623-3cc12ee64b10
 	forge.chapril.org/mls-361/crypto v0.0.0-20210412210122-fd3f4aac66eb
 	forge.chapril.org/mls-361/failure v0.0.0-20210412202827-a8d100489f9d
 	forge.chapril.org/mls-361/jsonapi v0.0.0-20210416210938-8892d7c86b70
 	forge.chapril.org/mls-361/logger v0.0.0-20210412202904-dadda1a823de
 	forge.chapril.org/mls-361/uuid v0.0.0-20210411123640-49d47af267ff
+	github.com/jinzhu/copier v0.2.9 // indirect
 	github.com/julienschmidt/httprouter v1.3.0
 )
diff --git a/go.sum b/go.sum
index 1302b02..c62a22c 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,6 @@
 cloud.google.com/go v0.16.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+forge.chapril.org/armen/jw v0.0.0-20210412203118-f24a805abde4 h1:4QpXO+P7ZEekXR92qc31Wg42MC2QYdwWr0tSHytFe2A=
+forge.chapril.org/armen/jw v0.0.0-20210412203118-f24a805abde4/go.mod h1:Yucy16A+11RDmTxRNi29F4eWGUjJwQ+tP8WxbP1xIMU=
 forge.chapril.org/mls-361/application v0.0.0-20210414132623-3cc12ee64b10 h1:vUnf1qBtd1/aJY0Sod5pdtVD4rAlYqWdS6E9QfhaZIM=
 forge.chapril.org/mls-361/application v0.0.0-20210414132623-3cc12ee64b10/go.mod h1:POwqatcN6c54BNVrOlsJDSpRuSwoub8iRIruASBI0jM=
 forge.chapril.org/mls-361/buffer v0.0.0-20210410182428-5dc7a7b2ae79 h1:Lh+y98uVFC7btl5FdxKNtokzHD2j14R4ZIgJECao6r4=
@@ -35,6 +37,9 @@ github.com/googleapis/gax-go v2.0.0+incompatible/go.mod h1:SFVmujtThgffbyetf+mdk
 github.com/gregjones/httpcache v0.0.0-20170920190843-316c5e0ff04e/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
 github.com/hashicorp/hcl v0.0.0-20170914154624-68e816d1c783/go.mod h1:oZtUIOe8dh44I2q6ScRibXws4Ajl+d+nod3AaR9vL5w=
 github.com/inconshreveable/log15 v0.0.0-20170622235902-74a0988b5f80/go.mod h1:cOaXtrgN4ScfRrD9Bre7U1thNq5RtJ8ZoP4iXVGRj6o=
+github.com/jinzhu/copier v0.2.8/go.mod h1:24xnZezI2Yqac9J61UC6/dG/k76ttpq0DdJI3QmUvro=
+github.com/jinzhu/copier v0.2.9 h1:v0Wnz+GKEI63FX7cU2LI20mFFlhTNl+36cjDIuhq3QY=
+github.com/jinzhu/copier v0.2.9/go.mod h1:24xnZezI2Yqac9J61UC6/dG/k76ttpq0DdJI3QmUvro=
 github.com/julienschmidt/httprouter v1.3.0 h1:U0609e9tgbseu3rBINet9P48AI/D3oJs4dN7jwJOQ1U=
 github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
 github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
diff --git a/internal/api/api.go b/internal/api/api.go
index fd42a9d..b3c0362 100644
--- a/internal/api/api.go
+++ b/internal/api/api.go
@@ -14,7 +14,7 @@ import (
 )
 
 const (
-	_maxBodySize = 1024 * 4
+//_maxBodySize = 1024 * 4
 )
 
 type api struct {
diff --git a/internal/components/components.go b/internal/components/components.go
index 2d8f68b..e643c55 100644
--- a/internal/components/components.go
+++ b/internal/components/components.go
@@ -9,6 +9,7 @@ package components
 import (
 	"net/http"
 
+	"forge.chapril.org/armen/jw"
 	"forge.chapril.org/mls-361/logger"
 	"forge.chapril.org/mls-361/uuid"
 
@@ -33,6 +34,11 @@ type Logger interface {
 	logger.Logger
 }
 
+// Model AFAIRE.
+type Model interface {
+	jw.Model
+}
+
 // Router AFAIRE.
 type Router interface {
 	Handler() http.Handler
@@ -40,6 +46,11 @@ type Router interface {
 	Post(path string, handler http.Handler)
 }
 
+// Storage AFAIRE.
+type Storage interface {
+	jw.Storage
+}
+
 // Server AFAIRE.
 type Server interface {
 	Start() error