diff --git a/architecture.d2 b/architecture.d2
new file mode 100644
index 0000000..7b36327
--- /dev/null
+++ b/architecture.d2
@@ -0,0 +1,27 @@
+browser -> backend.server: REST API
+
+GitHub: {
+  shape: cloud
+  icon: https://icons.terrastruct.com/dev%2Fgithub.svg
+}
+
+GitHub -> backend.server: webhook events
+
+backend.server <-> backend.storage.Postgres: read/write data
+backend.server <-> backend.storage.Redis: store KV data
+backend.server <-> backend.storage.Influx: read data
+
+backend.storage.Postgres.shape: cylinder
+backend.storage.Redis.shape: cylinder
+backend.storage.Influx.shape: cylinder
+
+backend.gh-updater -- backend.storage.Postgres: listen to build status changes
+backend.gh-updater -> GitHub: write check status
+
+backend.executors.executor 1 -> backend.storage.Postgres: build status data
+backend.executors.executor 2 -> backend.storage.Postgres: build status data
+backend.executors.executor n -> backend.storage.Postgres: build status data
+
+backend.executors.executor 1 -> backend.storage.Influx: build logs
+backend.executors.executor 2 -> backend.storage.Influx: build logs
+backend.executors.executor n -> backend.storage.Influx: build logs
diff --git a/backend/cmd/server/main.go b/backend/cmd/server/main.go
index f3ffa6d..77aa606 100644
--- a/backend/cmd/server/main.go
+++ b/backend/cmd/server/main.go
@@ -5,9 +5,6 @@ import (
 	"crypto/tls"
 	"encoding/base64"
 	"fmt"
-	"github.com/bee-ci/bee-ci-system/internal/common/ghservice"
-	"github.com/golang-jwt/jwt/v5"
-	"github.com/redis/go-redis/v9"
 	"log/slog"
 	"net/http"
 	"os"
@@ -15,6 +12,10 @@ import (
 	"strconv"
 	"time"
 
+	"github.com/bee-ci/bee-ci-system/internal/common/ghservice"
+	"github.com/golang-jwt/jwt/v5"
+	"github.com/redis/go-redis/v9"
+
 	influxdb2 "github.com/influxdata/influxdb-client-go/v2"
 
 	"github.com/bee-ci/bee-ci-system/internal/common/middleware"
diff --git a/backend/internal/server/webhook/webhook.go b/backend/internal/server/webhook/webhook.go
index 0425f7e..3dbc083 100644
--- a/backend/internal/server/webhook/webhook.go
+++ b/backend/internal/server/webhook/webhook.go
@@ -7,7 +7,6 @@ import (
 	"embed"
 	"encoding/json"
 	"fmt"
-	"github.com/bee-ci/bee-ci-system/internal/common/ghservice"
 	"html/template"
 	"io"
 	"log"
@@ -18,6 +17,8 @@ import (
 	"strconv"
 	"time"
 
+	"github.com/bee-ci/bee-ci-system/internal/common/ghservice"
+
 	"github.com/golang-jwt/jwt/v5"
 	"github.com/google/go-github/v64/github"