diff --git a/.gitignore b/.gitignore
index 3b735ec..51345e9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,21 +1,29 @@
-# If you prefer the allow list template instead of the deny list, see community template:
-# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
-#
-# Binaries for programs and plugins
 *.exe
+*.BIN
 *.exe~
 *.dll
 *.so
 *.dylib
-
-# Test binary, built with `go test -c`
 *.test
-
-# Output of the go coverage tool, specifically when used with LiteIDE
 *.out
-
-# Dependency directories (remove the comment below to include it)
-# vendor/
-
-# Go workspace file
+*.app
+*.bat
+*.cgi
+*.com
+*.gadget
+*.jar
+*.pif
+*.vb
+*.wsf
+/out
+vendor/
+/Godeps
+*.iml
+*.ipr
+.idea
+*.iws
+/.vscode
+.tmp-*
+.env
+*.patch
 go.work
diff --git a/cmd/subzero/subzero.go b/cmd/subzero/subzero.go
new file mode 100644
index 0000000..26c3cfe
--- /dev/null
+++ b/cmd/subzero/subzero.go
@@ -0,0 +1,37 @@
+package main
+
+import (
+	"context"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/ice-blockchain/subzero/model"
+	"github.com/ice-blockchain/subzero/server"
+)
+
+func init() {
+	server.RegisterWSEventListener(acceptEvent)
+	server.RegisterWSSubscriptionListener(acceptSubscription)
+}
+
+func main() {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	quit := make(chan os.Signal, 1)
+	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
+
+	select {
+	case <-ctx.Done():
+	case <-quit:
+	}
+}
+
+func acceptEvent(event *model.Event) error {
+	return nil
+}
+
+func acceptSubscription(subscription *model.Subscription) ([]*model.Event, error) {
+	return nil, nil
+}
diff --git a/database/command/command.go b/database/command/command.go
new file mode 100644
index 0000000..32eaf3d
--- /dev/null
+++ b/database/command/command.go
@@ -0,0 +1,9 @@
+package command
+
+import "github.com/ice-blockchain/subzero/model"
+
+var syncQuery func(*model.Event) error
+
+func RegisterQuerySyncer(sync func(*model.Event) error) {
+	syncQuery = sync
+}
diff --git a/database/query/DDL.sql b/database/query/DDL.sql
new file mode 100644
index 0000000..e69de29
diff --git a/database/query/query.go b/database/query/query.go
new file mode 100644
index 0000000..0e06ad7
--- /dev/null
+++ b/database/query/query.go
@@ -0,0 +1,14 @@
+package query
+
+import (
+	"github.com/ice-blockchain/subzero/database/command"
+	"github.com/ice-blockchain/subzero/model"
+)
+
+func init() {
+	command.RegisterQuerySyncer(acceptEvent)
+}
+
+func acceptEvent(event *model.Event) error {
+	return nil
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..6dffb88
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module github.com/ice-blockchain/subzero
+
+go 1.22.0
diff --git a/model/model.go b/model/model.go
new file mode 100644
index 0000000..1bd2525
--- /dev/null
+++ b/model/model.go
@@ -0,0 +1,8 @@
+package model
+
+type (
+	Event struct {
+	}
+	Subscription struct {
+	}
+)
diff --git a/server/server.go b/server/server.go
new file mode 100644
index 0000000..19921b7
--- /dev/null
+++ b/server/server.go
@@ -0,0 +1,16 @@
+package server
+
+import (
+	"github.com/ice-blockchain/subzero/model"
+)
+
+var wsEventListener func(*model.Event) error
+var wsSubscriptionListener func(*model.Subscription) ([]*model.Event, error)
+
+func RegisterWSEventListener(listen func(*model.Event) error) {
+	wsEventListener = listen
+}
+
+func RegisterWSSubscriptionListener(listen func(*model.Subscription) ([]*model.Event, error)) {
+	wsSubscriptionListener = listen
+}