diff --git a/api/mirror.go b/api/mirror.go
index 38b36b11..aa4af0a2 100644
--- a/api/mirror.go
+++ b/api/mirror.go
@@ -102,6 +102,8 @@ type mirrorCreateParams struct {
 	DownloadUdebs bool `                     json:"DownloadUdebs"`
 	// Set "true" to mirror installer files
 	DownloadInstaller bool `                 json:"DownloadInstaller"`
+	// Set "true" to mirror AppStream (DEP-11) metadata
+	DownloadAppStream bool `                 json:"DownloadAppStream"`
 	// Set "true" to include dependencies of matching packages when filtering
 	FilterWithDeps bool `                    json:"FilterWithDeps"`
 	// Set "true" to skip if the given components are in the Release file
@@ -153,7 +155,7 @@ func apiMirrorsCreate(c *gin.Context) {
 	}
 
 	repo, err := deb.NewRemoteRepo(b.Name, b.ArchiveURL, b.Distribution, b.Components, b.Architectures,
-		b.DownloadSources, b.DownloadUdebs, b.DownloadInstaller)
+		b.DownloadSources, b.DownloadUdebs, b.DownloadInstaller, b.DownloadAppStream)
 
 	if err != nil {
 		AbortWithJSONError(c, 400, fmt.Errorf("unable to create mirror: %s", err))
@@ -573,6 +575,14 @@ func apiMirrorsUpdate(c *gin.Context) {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
 		}
 
+		if remote.DownloadAppStream && !remote.IsFlat() {
+			err = remote.DownloadAppStreamFiles(out, downloader,
+				context.PackagePool(), collectionFactory.ChecksumCollection(nil), b.IgnoreChecksums)
+			if err != nil {
+				return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
+			}
+		}
+
 		if remote.Filter != "" {
 			var filterQuery deb.PackageQuery
 
diff --git a/cmd/mirror_create.go b/cmd/mirror_create.go
index 049dd2eb..d8a910d7 100644
--- a/cmd/mirror_create.go
+++ b/cmd/mirror_create.go
@@ -20,6 +20,7 @@ func aptlyMirrorCreate(cmd *commander.Command, args []string) error {
 	downloadSources := LookupOption(context.Config().DownloadSourcePackages, context.Flags(), "with-sources")
 	downloadUdebs := context.Flags().Lookup("with-udebs").Value.Get().(bool)
 	downloadInstaller := context.Flags().Lookup("with-installer").Value.Get().(bool)
+	downloadAppStream := context.Flags().Lookup("with-appstream").Value.Get().(bool)
 	ignoreSignatures := context.Config().GpgDisableVerify
 	if context.Flags().IsSet("ignore-signatures") {
 		ignoreSignatures = context.Flags().Lookup("ignore-signatures").Value.Get().(bool)
@@ -41,7 +42,7 @@ func aptlyMirrorCreate(cmd *commander.Command, args []string) error {
 	}
 
 	repo, err := deb.NewRemoteRepo(mirrorName, archiveURL, distribution, components, context.ArchitecturesList(),
-		downloadSources, downloadUdebs, downloadInstaller)
+		downloadSources, downloadUdebs, downloadInstaller, downloadAppStream)
 	if err != nil {
 		return fmt.Errorf("unable to create mirror: %s", err)
 	}
@@ -100,6 +101,7 @@ Example:
 	}
 
 	cmd.Flag.Bool("ignore-signatures", false, "disable verification of Release file signatures")
+	cmd.Flag.Bool("with-appstream", false, "download AppStream (DEP-11) metadata")
 	cmd.Flag.Bool("with-installer", false, "download additional not packaged installer files")
 	cmd.Flag.Bool("with-sources", false, "download source packages in addition to binary packages")
 	cmd.Flag.Bool("with-udebs", false, "download .udeb packages (Debian installer support)")
diff --git a/cmd/mirror_edit.go b/cmd/mirror_edit.go
index f95d9736..6e07d066 100644
--- a/cmd/mirror_edit.go
+++ b/cmd/mirror_edit.go
@@ -35,6 +35,8 @@ func aptlyMirrorEdit(cmd *commander.Command, args []string) error {
 			repo.Filter = flag.Value.String() // allows file/stdin with @
 		case "filter-with-deps":
 			repo.FilterWithDeps = flag.Value.Get().(bool)
+		case "with-appstream":
+			repo.DownloadAppStream = flag.Value.Get().(bool)
 		case "with-installer":
 			repo.DownloadInstaller = flag.Value.Get().(bool)
 		case "with-sources":
@@ -107,6 +109,7 @@ Example:
 	AddStringOrFileFlag(&cmd.Flag, "filter", "", "filter packages in mirror, use '@file' to read filter from file or '@-' for stdin")
 	cmd.Flag.Bool("filter-with-deps", false, "when filtering, include dependencies of matching packages as well")
 	cmd.Flag.Bool("ignore-signatures", false, "disable verification of Release file signatures")
+	cmd.Flag.Bool("with-appstream", false, "download AppStream (DEP-11) metadata")
 	cmd.Flag.Bool("with-installer", false, "download additional not packaged installer files")
 	cmd.Flag.Bool("with-sources", false, "download source packages in addition to binary packages")
 	cmd.Flag.Bool("with-udebs", false, "download .udeb packages (Debian installer support)")
diff --git a/cmd/mirror_show.go b/cmd/mirror_show.go
index 00018fb8..b106c656 100644
--- a/cmd/mirror_show.go
+++ b/cmd/mirror_show.go
@@ -61,6 +61,11 @@ func aptlyMirrorShowTxt(_ *commander.Command, args []string) error {
 		downloadUdebs = Yes
 	}
 	fmt.Printf("Download .udebs: %s\n", downloadUdebs)
+	downloadAppStream := No
+	if repo.DownloadAppStream {
+		downloadAppStream = Yes
+	}
+	fmt.Printf("Download AppStream: %s\n", downloadAppStream)
 	if repo.Filter != "" {
 		fmt.Printf("Filter: %s\n", repo.Filter)
 		filterWithDeps := No
diff --git a/cmd/mirror_update.go b/cmd/mirror_update.go
index df28efa7..d67fce3e 100644
--- a/cmd/mirror_update.go
+++ b/cmd/mirror_update.go
@@ -64,6 +64,15 @@ func aptlyMirrorUpdate(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("unable to update: %s", err)
 	}
 
+	if repo.DownloadAppStream && !repo.IsFlat() {
+		context.Progress().Printf("Downloading AppStream metadata...\n")
+		err = repo.DownloadAppStreamFiles(context.Progress(), context.Downloader(),
+			context.PackagePool(), collectionFactory.ChecksumCollection(nil), ignoreChecksums)
+		if err != nil {
+			return fmt.Errorf("unable to update: %s", err)
+		}
+	}
+
 	if repo.Filter != "" {
 		context.Progress().Printf("Applying filter...\n")
 		var filterQuery deb.PackageQuery
diff --git a/deb/publish.go b/deb/publish.go
index 9fda0707..69ffb545 100644
--- a/deb/publish.go
+++ b/deb/publish.go
@@ -1055,6 +1055,38 @@ func (p *PublishedRepo) Publish(packagePool aptly.PackagePool, publishedStorageP
 			}
 		}
 
+		// Pass-through AppStream (DEP-11) files from snapshots
+		for component, item := range p.sourceItems {
+			if item.snapshot == nil || len(item.snapshot.AppStreamFiles) == 0 {
+				continue
+			}
+
+			prefix := component + "/"
+			for relPath, poolPath := range item.snapshot.AppStreamFiles {
+				if !strings.HasPrefix(relPath, prefix) {
+					continue
+				}
+				withinComponent := strings.TrimPrefix(relPath, prefix)
+
+				poolFile, err := packagePool.Open(poolPath)
+				if err != nil {
+					return fmt.Errorf("unable to open AppStream file from pool: %v", err)
+				}
+
+				bufWriter, err := indexes.SkelIndex(component, withinComponent).BufWriter()
+				if err != nil {
+					poolFile.Close()
+					return fmt.Errorf("unable to generate AppStream index: %v", err)
+				}
+
+				_, err = bufio.NewReader(poolFile).WriteTo(bufWriter)
+				poolFile.Close()
+				if err != nil {
+					return fmt.Errorf("unable to write AppStream file: %v", err)
+				}
+			}
+		}
+
 		udebs := []bool{false}
 		if hadUdebs {
 			udebs = append(udebs, true)