diff --git a/cmd/mbf/main.go b/cmd/mbf/main.go
index 8e2c4bda..e5c17ac2 100644
--- a/cmd/mbf/main.go
+++ b/cmd/mbf/main.go
@@ -439,8 +439,6 @@ func main() {
 		var (
 			flagGentoo   string
 			flagChecksum string
-
-			flagStage0 bool
 		)
 		c.NewCommand(
 			"stage3",
@@ -502,17 +500,6 @@ func main() {
 						"("+pkg.Encode(checksum[0].Value())+")",
 					)
 				}
-
-				if flagStage0 {
-					if err = cm.Do(func(cache *pkg.Cache) (err error) {
-						pathname, _, err = cache.Cure(rosa.Native().Std().NewStage0())
-						return
-					}); err != nil {
-						return
-					}
-					log.Println(pathname)
-				}
-
 				return
 			},
 		).Flag(
@@ -523,10 +510,6 @@ func main() {
 			&flagChecksum,
 			"checksum", command.StringFlag(""),
 			"Checksum of Gentoo stage3 tarball",
-		).Flag(
-			&flagStage0,
-			"stage0", command.BoolFlag(false),
-			"Create bootstrap stage0 tarball",
 		)
 	}
 
diff --git a/internal/rosa/package/stage0.az b/internal/rosa/package/stage0.az
index d1276b82..c6db1bc6 100644
--- a/internal/rosa/package/stage0.az
+++ b/internal/rosa/package/stage0.az
@@ -1,5 +1,31 @@
-package stage0-dist {
+package rosa-stage0 {
 	description = "Rosa OS stage0 bootstrap seed";
+	version = unversioned;
+	exclude = true;
+
+	source = hakurei-source;
+	extra = [
+		llvm,
+		mksh,
+		toybox-early,
+	];
+	overlay = "/stage0";
+	exec = generic {
+		build = `
+umask 377
+tar \
+	-vjc \
+	-C /stage0 \
+	-f /work/stage0-`+triple+`.tar.bz2 \
+	.
+`;
+	};
+
+	inputs = [ bzip2 ];
+}
+
+package stage0-dist {
+	description = "Rosa OS stage0 bootstrap seed (binary distribution)";
 	exclude = true;
 
 	version* = "20260504";
diff --git a/internal/rosa/rosa.go b/internal/rosa/rosa.go
index 1d363204..0a61e9ec 100644
--- a/internal/rosa/rosa.go
+++ b/internal/rosa/rosa.go
@@ -111,7 +111,7 @@ const (
 	stageIntermediateGentoo
 
 	// stageStdGentoo is like Std, but bootstrapped from stageGentoo. This
-	// toolchain creates the first [Stage0] distribution.
+	// toolchain creates the first stage0 distribution.
 	stageStdGentoo
 
 	// stageEarly denotes the stage0 toolchain. Special care must be taken
@@ -322,24 +322,6 @@ mkdir -vp /work/system/bin
 	)
 }
 
-// NewStage0 returns a [pkg.Artifact] curing to a stage0 distribution.
-func (t Toolchain) NewStage0() pkg.Artifact {
-	return t.New("stage0", 0, t.Append(nil,
-		H("bzip2"),
-	), nil, nil, `
-umask 377
-tar \
-	-vjc \
-	-C /stage0 \
-	-f /work/stage0-`+t.triple()+`.tar.bz2 \
-	.
-`, pkg.Path(fhs.AbsRoot.Append("stage0"), false, t.Append(nil,
-		_llvm,
-		_mksh,
-		_toyboxEarly,
-	)...))
-}
-
 // HasStageEarly returns whether a stage0 distribution is available.
 func (s *S) HasStageEarly() (ok bool) {
 	func() {