diff --git a/aconfig/all_aconfig_declarations.go b/aconfig/all_aconfig_declarations.go
new file mode 100644
index 0000000..6096c6c
--- /dev/null
+++ b/aconfig/all_aconfig_declarations.go
@@ -0,0 +1,63 @@
+// Copyright 2023 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package aconfig
+
+import (
+	"android/soong/android"
+)
+
+// A singleton module that collects all of the aconfig flags declared in the
+// tree into a single combined file for export to the external flag setting
+// server (inside Google it's Gantry).
+//
+// Note that this is ALL aconfig_declarations modules present in the tree, not just
+// ones that are relevant to the product currently being built, so that that infra
+// doesn't need to pull from multiple builds and merge them.
+func AllAconfigDeclarationsFactory() android.Singleton {
+	return &allAconfigDeclarationsSingleton{}
+}
+
+type allAconfigDeclarationsSingleton struct {
+	intermediatePath android.OutputPath
+}
+
+func (this *allAconfigDeclarationsSingleton) GenerateBuildActions(ctx android.SingletonContext) {
+	// Find all of the aconfig_declarations modules
+	var cacheFiles android.Paths
+	ctx.VisitAllModules(func(module android.Module) {
+		if !ctx.ModuleHasProvider(module, declarationsProviderKey) {
+			return
+		}
+		decl := ctx.ModuleProvider(module, declarationsProviderKey).(declarationsProviderData)
+		cacheFiles = append(cacheFiles, decl.IntermediatePath)
+	})
+
+	// Generate build action for aconfig
+	this.intermediatePath = android.PathForIntermediates(ctx, "all_aconfig_declarations.pb")
+	ctx.Build(pctx, android.BuildParams{
+		Rule:        allDeclarationsRule,
+		Inputs:      cacheFiles,
+		Output:      this.intermediatePath,
+		Description: "all_aconfig_declarations",
+		Args: map[string]string{
+			"cache_files": android.JoinPathsWithPrefix(cacheFiles, "--cache "),
+		},
+	})
+	ctx.Phony("all_aconfig_declarations", this.intermediatePath)
+}
+
+func (this *allAconfigDeclarationsSingleton) MakeVars(ctx android.MakeVarsContext) {
+	ctx.DistForGoal("droid", this.intermediatePath)
+}